SB 432
ALUMINUM HYDROXIDE
(ATH)

DESCRIPTION

SB-432 ATH developed especially for SMC, BMC, resin injection and high solids coatings, has a unique particle
size distribution that provides the best possible combination of viscosity, flame, electrical and molding
properties that can be derived from an ATH filler. A closely controlled top size with a large super fine faction
yields rapid dispersion in resin. Excellent mold flow and wet-out characteristics result in superior surface
profile, minimal porosity, even pigmentation, and excellent filler and reinforcement distribution throughout
the molded part.

Chemical Property Unit Typical Value
Al(OH)
3 % 99.6
SiO
2 % 0.005
Fe
2O3 % 0.007
Na
2O (total) % 0.24
Na
2O (soluble) % 0.03
Loss on Ignition (1000 C) % 34.6
Physical Property Unit Typical Value
Screen Analysis
on 325 Mesh % 0.1
through 325 Mesh % 99.9
% on less than 10 microns % 53
Median Particle Diameter Microns 9
BET Surface Area* m
2
/g 2
Free Moisture @105 C % 0.3
Specific Gravity gm/cm
3
2.42
Bulk Density, loose gm/cm
3
0.65
Bulk Density, packed gm/cm
3
1
TAPPI Brightness** 89
Oil Absorption*** ml 28

*
As measured with Micromeritics Tristar surface analyzer (BET)
** TAPPI Brightness measured with the Hunterlab Colorimeter
*** Oil Absorption, ml, boiled linseed oil per 100 gm filler

phone: (866) 564-8237
fax: (678) 247-2797
e-mail: hubermaterials@huber.com
www.hubermaterials.com

TEST
Granulometry

Retained on MESH 200 5.0% ISO 787R/7
Retained on MESH 325 15.0% ISO 787R/7

Specific Weight 2.7
Refraction Index 1.6

Mohs Hardness 3.0

Bulk Density (loosely packed) 1.6gr/cm
3

Calcium Carbonate
White Marble Dinamita M rmol

PARTICLE DISTRIBUTION

All data shown correspond to average values representative of production, so that should
be considered for information purposes only and not contract values.

Revert Minerals Am rica

Domicilio Conocido 35100

Central

Ctra. N-340 Km. 1.196

F brica Albox Almer a

Pol gono Industrial

Revert GmbH

Weisshausstrasse 26
Dinamita E-43719 Bellvei (Tarragona) E-04800 Albox (Almer a) D-50939 Colonia
Tel.: + 52 (871)75160 20 Espa a Espa a Alemania
Fax: + 52 (871)75160 25 Tel.: + 34 977 168 103 Tel.: + 34 950 633 004 Tel.: + 49 (0) 221 942012 0
www.reverte-na.com sales@reverte-na.com Fax: + 34 977 168 112 Fax: + 34 950 633 147 Fax: + 49 (0) 221 413795

Main Applications

Paints, plastics, coatings, plaster, fiberglass,
adhesives, vinyl flooring, drilling fluids, filtration
systems where it is needed to reduce the acidity,
water treatment, ceramics, polymeric marble, PVC
compounds and as an additive in animal feed.
Chemical Composition
CaCO3 98.0 %
MgCO3 <1.0 % Fe2O3 50 ppm SiO2 < 0.1 % Los son ignition 43.7 % Insoluble in Acid 0.20 % MEASURED ON I.C.P. Microcarb 200 UW

Applications
Used in polyester resin casting
applications
Direct replacement for cultured marble
Ideal for backfilling large tubs and
shower pans
Key Benefits
Dramatically improves flexural strength
Enhances thermal cycle performance
Increase impact resistance
Lower VOC emissions

Featherlite

FL-20 Physical Properties
Mean Particle Size 80
Dry Color White
True Density 1.9 g/cc
Free Moisture Content < 0.1% Bulk Density 1.5 g/cc Availability & Packaging: Lead time is typically less than five days. Packaged in 50 lb bags or 2,000 lb super sacks. FL-30 Physical Properties Mean Particle Size 80 Dry Color White True Density 1.5 g/cc Free Moisture Content < 0.1% Bulk Density 1.0 g/cc Availability & Packaging: Lead time is typically less than five days. Packaged in 40 lb bags or 1,500 lb super sacks. FL-50 Physical Properties Mean Particle Size 80 Dry Color White True Density 0.9 g/cc Free Moisture Content < 0.1% Bulk Density 0.4 g/cc Availability & Packaging: Lead time is typically less than five days. Packaged in 25 lb bags or 1,200 lb super sacks. FL-1000 Physical Properties Mean Particle Size 45 Dry Color White True Density 0.9 g/cc Free Moisture Content < 0.1% Bulk Density 0.5 g/cc Availability & Packaging: Lead time is typically less than five days. Packaged in 25 lb bags or 1,200 lb super sacks. 4 P V U I 5 I J S E " W F O V F 5 V D T P O " ; r d X X X B D T U P O F D P N No. AK0407 Featherlite Series FL 20 FL 30 FL 50 FL 1000 *FL-1000 is a finer (smaller) material than the FL-50. FL 1700 FL-1700 Physical Properties Mean Particle Size 80 Dry Color White True Density 0.7 g/cc Free Moisture Content < 0.1% Bulk Density 0.9 g/cc Availability & Packaging: Lead time is typi- cally less than five days. Packaged in 19 lb bags or 1,500 lb super sacks. FL-12 Physical Properties Mean Particle Size 80 Dry Color White True Density 2.2 g/cc Free Moisture Content < 0.1% Bulk Density 1.7 g/cc Availability & Packaging: Lead time is typically less than five days. Packaged in 50 lb bags or 2,500 lb super sacks. FL 12 FL 1500 FL-1500 Physical Properties Mean Particle Size 80 Dry Color White True Density 0.5 g/cc Free Moisture Content < 0.1% Bulk Density 0.9 g/cc Availability & Packaging: Lead time is typi- cally less than five days. Packaged in 19 lb bags or 1,500 lb super sacks.

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 2 of 10
2.2. Label elements
Symbols/Pictograms None
Signal Word None
Hazard Statements None
Hazard Statements None
Precautionary Statements
Prevention Employ good industrial hygiene practice
Do not handle until all safety precautions have been read and understood
Do not breathe dust
Wear protective gloves/protective clothing/eye protection/face protection
Response IF ON SKIN: Wash with plenty of soap and water
Storage Store away from incompatible materials
Disposal Dispose of contents/containers in accordance with local regulations
Additional Information: None.
Hazards not otherwise classified
(HNOC)
Not classified.
SECTION 4: First aid measures
4.1. Description of first aid measures
General Advice When in doubt or if symptoms are observed, get medical advice. Ensure that
medical personnel are aware of the material(s) involved and take precautions to
protect themselves.
Eye Contact In case of eye contact, remove contact lens and rinse immediately with plenty of
water, also under the eyelids, for at least 15 minutes.
SECTION 3: Composition/information on ingredients
Pure substance/mixture Substance
Chemical Name CAS NumberTSCA: United
States
Canada (DSL) Mexico REACH
registration
number
OSHA
Regulatory
Status
WHMIS Weight-%
Aluminum Hydroxide21645-51-2 A Y Y 01-211952924
6-39
Not classified — 100
Legend
X / Y: Complies ; A: Active ; – / N: Exempt / Not Listed

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 3 of 10
Skin Contact Wash with plenty of soap and water.
Ingestion Rinse mouth thoroughly with water.
Inhalation If breathing is difficult, remove victim to fresh air and keep at rest in a position
comfortable for breathing.
Aspiration hazard Not an expected route of exposure.
4.2. Most important symptoms
and effects, both acute and
delayed
Signs and symptoms may include coughing, gasping, choking and difficulty
breathing.
4.3. Indication of any immediate
medical attention and special
treatment needed
Treatment should be symptomatic and supportive.
SECTION 5: Firefighting measures
5.1. Extinguishing media
Suitable Extinguishing
Media
Water spray (fog). Foam. Dry chemical. Carbon dioxide (CO2).
Unsuitable Extinguishing Media
None known.
5.2. Special hazards arising from the substance or mixture
None known.
5.3. Advice for firefighters
Special protective
equipment for firefighters
Wear a self-contained breathing apparatus and chemical protective clothing.
Fire-fighting measures
In case of fire and/or explosion do not breathe fumes.
SECTION 6: Accidental release measures
6.1. Personal precautions,
protective equipment and
emergency procedures
Ensure adequate ventilation. Use personal protection recommended in Section 8.
Avoid dust formation. Keep unauthorized personnel away.
For non-emergency personnelKeep unauthorized personnel away.

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 4 of 10
For emergency responders Keep unauthorized personnel away. Use personal protection recommended in
Section 8.
6.2. Environmental precautionsAvoid runoff to waterways and sewers.
6.3. Methods and material for
containment and cleaning up
Large Spill: Do not dry sweep dust. Wet dust with water before sweeping or use a
vacuum to collect dust Small Spill: Vacuum or sweep material and place in a
disposal container
6.4. Reference to other sectionsSection 8: Exposure controls and personal protection. See Section 13 for
additional waste treatment information.
SECTION 7: Handling and storage
7.1. Precautions for safe
handling
Minimize dust generation and accumulation. Provide local exhaust ventilation.
Handle in accordance with good industrial hygiene and safety practice.
7.2. Conditions for safe storage,
including any incompatibilities
Store away from incompatible materials. Keep container tightly closed and dry.
7.3. Specific end use(s) Flame retardant.
SECTION 8: Exposure controls/personal protection
8.1. Control parameters
Occupational exposure limits
Aluminum Hydroxide – 21645-51-2
OSHA TWA: 15 mg/m
3
Total Dust
5 mg/m
3
Respirable Dust
ACGIH TLV/TWA 8-hr: 1 mg/m
3
(respirable fraction)
Canada – Nova Scotia – OEL – TWA1 mg/m
3
TWA (respirable fraction)
Predicted No Effect
Concentration (PNEC)
No information available
Derived No Effect Level (DNEL)Consumer – oral, long-term – local and systemic 4.74 mg/kg bw/day
Worker – inhalative, long-term – local and systemic 10.74 mg/m
3
Biological Limit Values: None
8.2. Exposure controls
Engineering Measures Ensure adequate ventilation, especially in confined areas. Provide a good
standard of controlled ventilation (10 to 15 air changes per hour).

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 5 of 10
Personal protective equipment
Eye/Face Protection Wear safety glasses with side shields (or goggles).
Skin and Body Protection Wear suitable protective clothing.
Hand Protection For operations where prolonged or repeated skin contact may occur, impervious
gloves should be worn.
Respiratory Protection In case of inadequate ventilation wear respiratory protection.
Thermal hazards None known.
Hygiene Measures Follow general hygiene considerations recognized as common good workplace
practices. The worker should wash daily at the end of each work shift, and prior to
eating, drinking, smoking, etc.
Environmental Exposure
Controls
Dispose of in accordance with local regulations.
SECTION 9: Physical and chemical properties
9.1. Information on basic physical and chemical properties
Appearance:
Physical State Solid Powder
Odor Odorless
Odor Threshold No information available
pH: 8.4 – 10.2 5% Water suspension
Melting point / Freezing pointca 300 C / 572 F (101.3 kPa)
Initial boiling point 5396 F (2980 C) 101.3 kPa
Flash Point: Not applicable.
Evaporation Rate Not applicable.
Flammability (solid, gas) Not applicable
Flammability (solid, gas) Not applicable
Upper flammability limit:
Lower flammability limit:
Vapor Pressure Not applicable
Vapor Density Not applicable
Relative Density 2.4 g/cm3, 20 C
Water Solubility 0.00009 g/l at 20 C
Solubility in other solvents No information available
Partition coefficient Not applicable
Autoignition Temperature Not applicable
Decomposition Temperature 392 F (200 C)
Viscosity Not applicable.
Explosive Properties None
Oxidizing Properties Not applicable
VOC Content (%) Not applicable
SECTION 10: Stability and reactivity

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 6 of 10
10.1. Reactivity None
10.2. Chemical stability Stable under normal conditions
10.3. Possibility of hazardous
reactions
None under normal processing
10.4. Conditions to avoid Incompatible materials
10.5. Incompatible materials Strong acids
10.6. Hazardous decomposition
products
None known
SECTION 11: Toxicological information
General Information Users are advised to consider national Occupational Exposure Limits or other
equivalent values.
Information on Likely Routes of Exposure
Inhalation Avoid inhalation of the product
Inhalation of dust may cause irritation of the respiratory system
Skin Avoid prolonged or repeated contact with skin
Eyes Avoid contact with eyes
Dust contact with the eyes can lead to mechanical irritation
Ingestion Ingestion is not a likely route of exposure
Aspiration hazard Not an expected route of exposure.
11.1. Information on toxicological effects
Aluminum Hydroxide
Oral LD50 > 2000 mg/kg Rat
Inhalation LC50 Rat > 2.3 mg/l (Al2O3) Aerosol Maximum attainable concentration
IARC Not Listed
Acute Toxicity Based on available data, the classification criteria are not met
Chronic Toxicity Based on available data, the classification criteria are not met.
Chronic Effects Based on available data, the classification criteria are not met.
Respiratory Sensitization No information available

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 7 of 10
Serious eye damage/eye
irritation
Based on available data, the classification criteria are not met
Skin Corrosion/Irritation Prolonged or repeated contact may dry skin and cause irritation
Skin Sensitization Based on available data, the classification criteria are not met Not a skin sensitizer
Guinea pig
Mutagenicity in vitro Not genotoxic in bacteria and mammalian cell systems.
in vivo Mutagenicity (micronucleus test) Rat Negative (weight of evidence
approach)
Germ cell mutagenicity No information available.
Reproductive Effects Based on available data, the classification criteria are not met.
Reproductive Toxicity Based on available data, the classification criteria are not met.
Carcinogenicity This product does not contain any carcinogens or potential carcinogens as listed
by OSHA, IARC or NTP.
Specific target organ toxicity –
Single exposure
Based on available data, the classification criteria are not met.
Specific target organ toxicity –
Repeated exposure
Based on available data, the classification criteria are not met.
Mixture versus substance
information
No information available
SECTION 12: Ecological information
12.1. Ecotoxicity Not considered to be harmful to aquatic life.
Aluminum Hydroxide
WGK Classification (AwSV)5220 WGK: nwg
12.2. Persistence and
degradability
The methods for determining biodegradability are not applicable to inorganic
substances.
12.3. Bioaccumulative potentialNot likely to bioaccumulate.
Partition coefficient Not applicable
Bioconcentration factor
(BCF)
Not available.
12.4. Mobility in soil No information available.
12.5. Results of PBT and vPvBThis substance does not meet the criteria for classification as PBT or vPvB.

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 8 of 10
assessment
12.6. Other adverse effects No information available
SECTION 13: Disposal considerations
13.1. Waste treatment methods
Disposal Methods Disposal should be in accordance with applicable regional, national and local laws
and regulations.
Contaminated Packaging Empty containers should be taken to an approved waste handling site for recycling
or disposal.
Waste codes Waste codes should be assigned by the user based on the application for which
the product was used
Aluminum Hydroxide
European Waste Catalog 060299
WGK Classification (AwSV)5220 WGK: nwg
SECTION 14: Transport information
Mode of Transportation (Road, Water, Air, Rail)
TDG -Canada Not regulated
DOT Not regulated
ADR Not regulated
RID Not regulated
ADN Not regulated
IATA Not regulated
IMDG/IMO Not regulated
ICAO Not regulated
14.1. UN number None
14.2. UN proper shipping nameNone
14.3. Transport hazard class(es)None
14.4. Packing group None
14.5. Environmental hazards No
14.6. Special precautions forNot applicable

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 9 of 10
user
14.7. Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
Not applicable
SECTION 15: Regulatory information
Global Inventories
Pure substance/mixture Substance
Chemical Name CAS
Number
EC No REACH
registrati
on
number
Australia
(AICS)
Canada
(DSL)
China
(IECSC)
JapanS. Korea
(KECL)
Mexico New
Zealand
Philippine
s (PICCS)
Taiwan TSCA:
United
States
Aluminum
Hydroxide
21645-51-
2
244-492-701-211952
9246-39
Y Y Y (1)-17
(ENCS);
ISHL
KE-00980 Y Y Y Y A
Legend
X / Y: Complies ; A: Active ; – / N: Exempt / Not Listed
US Federal Regulations
EPA
CERCLA
Not listed
SARA 304
Not regulated
Aluminum Hydroxide
CERCLA Not listed
SARA 302 Not listed
CWA (Clean Water Act)
Not regulated
CAA (Clean Air Act)
Not regulated
U.S. State Right-to-Know Regulations
Chemical Name CAS Number California
Proposition 65
Massachusetts Minnesota New Jersey Pennsylvania
Aluminum Hydroxide 21645-51-2 No No No No No
California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65)
This product does not contain any Proposition 65 chemicals
CANADA
WHMIS:
This product has been classified in accordance with the hazard criteria of the Hazardous Products Regulations
(HPR) and the SDS contains all the information required by the HPR

SB-432
HUBER
Safety Data Sheet
Issue Date: 27/Aug/2020 Revision Number: 1.3
Print Date: 19/Nov/2020 Page 10 of 10
SECTION 16: Other information
Prepared by Huber Engineered Materials (HEM) Global Regulatory Affairs
regulatory.affairs@huber.com
Issue Date: 27/Aug/2020
Print Date: 19/Nov/2020
Revision Number: 1.3
Reason for Version OSHA (Occupational Safety and Health Administration of the US Department of
Labor).
Training Advice Do not handle until all safety precautions have been read and understood.
Abbreviations and acronyms
International Agency for Research on Cancer (IARC)
International Air Transport Association (IATA)
International Maritime Dangerous Goods (IMDG)
International Uniform Chemical Information Database (IUCLID)
Workplace Hazardous Materials Information System (WHMIS) status and classification
EPA SARA Title III Section 312 (40 CFR 370) Hazard Classification
DOT (Department of Transportation)
OSHA (Occupational Safety and Health Administration of the US Department of Labor)
TWA – Time-Weighted Average
Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA)
The Classification, Labeling and Packaging of Substances and Mixtures (CLP) Regulation (EC
1272/2008)
PPE – Personal Protection Equipment
NIOSH – National Institute for Occupational Safety and Health
TDG (Transport of Dangerous Goods) Canada
CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act)
Reportable Quantity (RQ) (RQ/% in mixture)
STEL – Short Term Exposure Limit
TLV – Threshold Limit Value
Derived No Effect Level (DNEL)
SVHC: Substances of Very High Concern for Authorization:
Land transport (ADR/RID)
Biochemical oxygen demand (BOD)
Chemical oxygen demand (COD)
ICAO (air)
(IMDG) International Maritime Dangerous Goods
Positive Pressure Self-Contained Breathing Apparatus (SCBA)
Predicted No Effect Concentration (PNEC)
Globally Harmonized System (GHS)
Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge,
information and belief at the date of its publication. The information given is designed only
as a guidance for safe handling, use, processing, storage, transportation, disposal and
release and is not to be considered a warranty or quality specification. The information
relates only to the specific material designated and may not be valid for such material used
in combination with any other materials or in any process, unless specified in the text
End of Safety Data Sheet

Hazard Pictogram: None
Hazard Statements: None
Precautionary Statements:
P261: Avoid breathing dust.
P280: Wear eye protection.
P285: In case of inadequate ventilation wear respiratory protection.
P301+313+330: IF SWALLOWED: Rinse mouth, get medical advice.
P305+351+338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy
to do-continue rinsing.
P302+352: IF ON SKIN: Wash with soap and water.
P402: Store in a dry place.

Other hazards: Prolonged or excessive contact may cause irritation of the respiratory tract.
Section 3 – Composition / Information on Ingredients
Ingredient Name CAS Number Weight
Alumina Trihydrate 21645-51-2 100%

Section 4 – First Aid Measures
Inhalation: If overcome by high dust concentrations, remove to a ventilated area.
Eye Contact: Flush eyes thoroughly for several minutes taking care to rinse under eyelids. Do not scrub. Abrasion may cause
irritation. If discomfort continues, continue to wash with water. If irritation persists, consult a physician.
Skin Contact: Wash skin thoroughly with soap and water. Consult a physician if irritation persists.
Ingestion: If swallowed, dilute with large amounts of water. Seek medical advice.
Most important symptoms and effects, both acute and delayed: None
Indication of any immediate medical attention and special treatment needed: None
Section 5 – Fire-Fighting Measures

Suitable Extinguishing Media: Use extinguishing measures appropriate to the surrounding fire.
Unsuitable Extinguishing Media: None
Special hazards arising from the chemical: None.
Hazardous Combustion Products: None.
Fire-Fighting Instructions: None

HMIS
H
F
R
1
0
0
PPE
E

Sec. 8

Revision date 5/5/17 Alumina Trihydrate MSDS No. 9605.49
Page 2 of 5
Section 6 – Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid dust formation. In case of inadequate
ventilation wear respiratory protection.
Environmental precautions: None.
Methods and materials for containment and cleaning up: Sweep up and dispose in accordance with local regulations.
Section 7 – Handling and Storage
Precautions for safe handling: Avoid generating dust during handling.
Conditions for safe storage, including any incompatibilities: Keep container tightly closed. Store in dry place.
Section 8 – Exposure Controls / Personal Protection
Engineering Controls:
Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs
(Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at
its source.
Administrative Controls:
Protective Clothing/Equipment: Wear tightly fitting safety goggles or safety glasses with side shields.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Launder before reuse. Remove this
material from your shoes and clean personal protective equipment.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before
eating, drinking, smoking, using the toilet, or applying cosmetics.

OSHA PEL ACGIH TLV
Ingredient TWA STEL TWA STEL
Alumina Trihydrate none estab.

none estab. none estab. none estab.
Nuisance Dust 15 mg/m
3
total, 5 mg/m
3
respirable none estab. none estab. none estab.
Section 9 – Physical and Chemical Properties
Physical State: white powder
Appearance and Odor: white odorless powder
Odor Threshold: n/e
pH: 8-9 (20% solution)
Freezing/Melting Point: Decomposes before melting.
Boiling Point: n/a
Flash Point: Not applicable.
Flash Point Method: Not flammable.
Evaporation Rate: n/a
Flammability: Not flammable.
Upper/lower flammability or explosive limits: n/a

Vapor Pressure: n/e
Vapor Density (Air=1): n/a
Relative Density: 2.42

Water Solubility: Insoluble
Other Solubilities: Soluble in alkaline aqueous solutions or
in HCL, H2SO4, and other strong acids in the presence of
some water.
Partition coefficient: n-octanol/water; not applicable
Auto-ignition Temperature: Does not ignite.
Decomposition temperature: >200C
Viscosity: n/a

Section 10 – Stability and Reactivity
Reactivity: None known.
Chemical stability: Alumina trihydrate is stable at room temperature in closed containers under normal storage and handling
conditions.
Possibility of hazardous reactions: No hazardous reactions known.
Conditions to avoid: Temperature >392 F (200 C).
Incompatible materials: Strong acids and bases. Alumina trihydrate reacts vigorously with strong acids and will dissolve in
caustic solutions.
Hazardous decomposition products: n/a

Revision date 5/5/17 Alumina Trihydrate MSDS No. 9605.49
Page 3 of 5
Section 11- Toxicological Information
Toxicity Data:
*
Information on toxicological effects:
Acute:
Value Species Type Test Substance
Oral >2000 mg/kg bw Rat Acute Aluminum
hydroxide
Dermal Not applicable
Inhalation LC50: 7.6 mg/l Rat Acute Analogue
Skin Corrosion Not corrosive Rabbit Acute Analogue
Skin Irritation Not irritating Rabbit Acute Analogue
Eye Irritation Not irritating Rabbit Acute Analogue
Sensitization Non-sensitizing

Repeated dose toxicity:
Value Species Type Test Substance
Oral NOAEL: 30 mg/kg
bw/day
Rat Chronic Analogue
Inhalation NOAEL: 70 mg/m
3
Rat Sub-chronic Analogue

Carcinogenicity: No evidence of carcinogenic effects.
Mutagenicity: No evidence of any mutagenic effects.
Reproductive toxicity: No evidence of any reproductive toxicity effects.
Section 12 – Ecological Information
Eco-toxicity:
Fish toxicity: LC50>100 mg/l in Salmo trutta.
Invertebrate toxicity: EC50>100 mg/l in Daphnia Magna
Algae toxicity: EC50 >100 mg/l in Selenastrum capricornutum

Persistence and degradability: Not applicable for inorganic substances.
Bio-accumulative potential: Not applicable
Mobility in soil: Not applicable.
Results of PBT and vPvB assessment: This product does not meet the classification as PBT/vPvB.
Other adverse effects: None known.
Section 13 – Disposal Considerations
Disposal: Recycle if possible or landfill. This substance is inert and does not require special disposal methods. Follow
applicable Federal, state, and local regulations.
Section 14 – Transport Information
DOT Transportation Data (49 CFR 172.101): This product is not classified as dangerous under the transport regulations for
road, rail, sea, or air transport.
UN Number: not classified as dangerous goods
UN proper shipping name: not classified as dangerous goods
Transport hazard classes: None
Packaging group: None
Environmental hazards: None
Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code: No hazardous goods.
Special precautions for user: None

Revision date 5/5/17 Alumina Trihydrate MSDS No. 9605.49
Page 4 of 5
Section 15 – Regulatory Information
EPA Regulations:
RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)
RCRA Hazardous Waste Classification (40 CFR 261.??): Not classified
CERCLA Hazardous Substance (40 CFR 302.4) not listed
SARA Toxic Chemical (40 CFR 372.65): Not listed
SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed
OSHA Regulations:
Air Contaminant (29 CFR 1910.1000, Table Z-1, Z-1-A): Not listed
OSHA Specifically Regulated Substance (29CFR 1910.????)

Inventory Lists: This product is listed on the following inventory lists:

International Regulations:
Regulation (EC) No 2037/2000 (Ozone Depleting Substances); Not applicable
Regulation (EC) No 850/2004 (Persistent Organic Pollutants): Not applicable
Regulation (EC) No 689/2008 (Export and Import of Dangerous Substances): Not applicable
Directive 2002/95/EC (RoHS): Not applicable
Directive 2002/96/EC (WEEE): Not applicable
Directive 1999/13/EC (VOC): Not applicable
Restrictions according to TITLE VIII of the Regulation (EC) No 1907/2006 (REACH): None

S-phrases:
S8: Keep container dry.
S36/37/39: Wear suitable protective clothing, gloves, and eye protection.

WEEE: Waste Electrical and Electronic Equipment
VOC: Volatile Organic Compounds
RoHS: Restriction of Hazardous Substances

TSCA Australia
AICS
Canada
DSL
China
IECSC
Europe
EINECS
Japan
ENCS
Korea
ECL
Listed Listed Listed Listed 244-492-7 1-17 KE-00980
New Zealand
NZIoC
Swiss
Giftliste
Philippines
PICCS
Taiwan
NECI
Listed G-4621 Listed Listed

Revision date 5/5/17 Alumina Trihydrate MSDS No. 9605.49
Page 5 of 5
Section 16 – Other Information
Prepared By: Stephanie Nichols
Revision Notes: Added MaxTool products

Product Grades Available from the R. J. Marshall Company (this list may be incomplete):

DF40 OFI A202 (A,W) AH170(A,C,V) DGXW1
DF45 OFIII A203H AH190 DGXW2
DF74 OFV A204(A,W) AH255(A,W) EM107
DF80 OFVS A205(A) AH270(A,C,V, W) EXT DF 168
DF80S OFVI A206(A,H,W) AH280(A,C,V,W) ATH-A
DF85 OF7 A208(A) AH285W ATH-B
DF111 OF136 A210(A) AH290(A,C,V,W) DT1080
DF119 OF250 A210SP AH290S KX-1
DF121 OF255A A212(A) AH298(A,C) DT1186
DF132 OF300 A245(W) AH330(A,C,V,W) STM1410
DF161 OF500 A236HL AH331(A) AC470AN
DF174 OF505 A200SB1 AH430(A,C,H,V,W) AC480AN
DF211(A) OF600 RC802(A) AH610
DF221 AH690
DF225 OP50OC A102 AH171(A)
DF230 OR150 A104 AH271(A)
DF240 OR250 A105 AH281(A)
DF270 OR255A A106 AH291(A)
DF315 RC822 A108 AH331(A)
DF320A A4555 A110 AH431(A)
DF325(C,W) 8515 A112 AH691
DF420 HF136 A130 AF330(A)
DF1045 A145
DF1051 MX100 A104A MAXTOOL710
DF2040 MX104 MAXTOOL815
DFG MX200

Note: This includes all EXP ATH blends.

Disclaimer: Information contained herein is presented in good faith and is based on data believed to be accurate. However no
warranty is expressed or implied regarding this information or the results obtained from the use of this Safety Data Sheet,
whether it originates with The R. J. Marshall Company or others. This Safety Data Sheet relates only to the specific material
designated herein. It does not relate to use with other material or processes. This information is supplied with the condition that
the user will make appropriate determination as to its suitability for their purpose prior to using it.

Classification of the substance or mixture:
Classification according to Regulation (EC) No 1272/2008 (CLP): Not classified
Classification according to Directive 67/548/EEC or Directive 1999/45/EC: Not classified

Hazard Pictogram: None
Hazard Statements: None
Precautionary Statements: None
Other hazards: Prolonged and excessive contact can irritate the respiratory tract.
Section 3 – Composition / Information on Ingredients
Ingredient Name CAS Number EC Number Weight
Alumina Trihydrate 21645-51-2 244-492-7 100%
REACH Registration #: 01-2119529246-39-XXXX
SVHC: None
Section 4 – First Aid Measures
Inhalation: If overcome by high dust concentrations, remove to a ventilated area.
Eye Contact: Flush eyes thoroughly for several minutes taking care to rinse under eyelids. Do not scrub. Abrasion may cause
irritation. If discomfort continues, continue to wash with water. If irritation persists, consult a physician.
Skin Contact: Wash skin thoroughly with soap and water. Consult a physician if irritation persists.
Ingestion: If swallowed, dilute with large amounts of water. Seek medical advice.
Most important symptoms and effects, both acute and delayed: None
Indication of any immediate medical attention and special treatment needed: Treat symptomatically.
Section 5 – Fire-Fighting Measures

Suitable Extinguishing Media: Use extinguishing measures appropriate to the surrounding fire.
Unsuitable Extinguishing Media: Full water jet
Special hazards arising from the chemical: None.
Hazardous Combustion Products: None.
Fire-Fighting Instructions: Use self-contained breathing apparatus. Fire residues and contaminated firefighting water must be
disposed of following local regulations.
Section 6 – Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid dust formation. In case of inadequate
ventilation wear respiratory protection.
Environmental precautions: Do not discharge into drains/surface water/groundwater.
Methods and materials for containment and cleaning up: Sweep up and dispose of per local regulations.
Reference to other sections: See Sections 8 & 13.

Revision date 7/22/21 Alumina Trihydrate MSDS No. 9605.53
Page 2 of 5
Section 7 – Handling and Storage
Precautions for safe handling: Avoid generating dust during handling. Provide vacuuming if dust is raised. Wash hands
before breaks and after work. Use barrier skin cream.
Conditions for safe storage, including any incompatibilities: Keep container tightly closed. Store in a dry place. Do not
store with food.
Section 8 – Exposure Controls / Personal Protection
Engineering Controls:

Ventilation: Provide general or local exhaust ventilation systems to maintain airborne concentrations below OSHA PELs
(Sec. 2). Local exhaust ventilation is preferred because it prevents contaminant dispersion into the work area by controlling it at
its source.
Administrative Controls:
Eye Protection: Safety glasses.
Hand Protection: Protective gloves are recommended.
Glove material: Nitrile rubber
Layer thickness: 0.11 mm
Breakthrough time: >480 min
Skin Protection: Protective clothing.
Other: Avoid contact with eyes and skin.
Do not inhale the dust.
PPE should be selected specifically for the workplace, depending on the concentration and quantity handled.
Respiratory Protection: In the event of high concentrations use a respirator with a P1 filter for short-term use.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Launder before reuse. Remove this
material from your shoes and clean personal protective equipment.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this material, especially before
eating, drinking, smoking, using the toilet, or applying cosmetics.

Section 9 – Physical and Chemical Properties
Physical State: powder
Appearance and Odor: white odorless powder
Odor Threshold: not applicable
pH: 8-9 (20 C saturated solution)
Freezing/Melting Point: Decomposes before melting.
Boiling Point: 2980 C (5396 F)
Flash Point: Not applicable.
Flash Point Method: Not flammable.
Evaporation Rate: not applicable
Flammability: Not flammable.
Upper/lower flammability or explosive limits: not
applicable
Oxidizing properties: None

Vapor Pressure: not applicable
Vapor Density (Air=1): not applicable
Relative Density: 2.42

Water Solubility: 0.00009 g/l (20 C/68 F)
Other Solubilities: Soluble in alkaline aqueous solutions or
HCL, H2SO4, and other strong acids in the presence of
some water.
Partition coefficient: n-octanol/water; not applicable
Auto-ignition Temperature: Does not ignite.
Decomposition temperature: >200 C
Viscosity: not applicable

Section 10 – Stability and Reactivity
Reactivity: None known.
Chemical stability: Alumina trihydrate is stable at room temperature in closed containers under normal storage and handling
conditions.
Possibility of hazardous reactions: No hazardous reactions are known.
Conditions to avoid: Temperature >392 F (200 C).
Incompatible materials: Strong acids and bases. Alumina trihydrate reacts vigorously with strong acids and will dissolve in
caustic solutions.
Hazardous decomposition products: not applicable
OSHA PEL ACGIH TLV
Ingredient TWA STEL TWA STEL
Alumina Trihydrate none established

none established none established none established
Particulates not otherwise classified 15 mg/m
3
total, 5 mg/m
3
respirable none established none established none established

Revision date 7/22/21 Alumina Trihydrate MSDS No. 9605.53
Page 3 of 5
Section 11- Toxicological Information
Information on the likely routes of exposure:
Eye contact: Exposure to airborne concentrations above statutory or recommended exposure limits may irritate the eyes.
Inhalation: Exposure to airborne concentrations above statutory or recommended exposure limits may irritate the nose,
throat, and lungs.
Skin Contact: No known significant effects or critical hazards.
Ingestion: No known significant effects or critical hazards.

Symptoms related to the physical, chemical, and toxicological characteristics:
Eye contact: Adverse symptoms may include irritation and redness.
Inhalation: Adverse symptoms may include respiratory tract irritation and coughing.
Skin Contact: No specific data.
Ingestion: No specific data.

Delayed and immediate effects and chronic effects from short- and long-term exposure:
Short term exposure: Not available
Long term exposure: Not available
Potential delayed effects: Not available

Numerical measures of toxicity:
Acute:
Value Species Type Test Substance
Oral >2000 mg/kg bw Rat Acute Aluminum
hydroxide
Dermal Not applicable
Inhalation LC50: 7.6 mg/l/4h Rat Acute Analogue
Skin Corrosion Not corrosive Rabbit Acute Analogue
Skin Irritation Not irritating Rabbit Acute Analogue
Eye Irritation Not irritating Rabbit Acute Analogue
Respiratory or Skin
Sensitization
Non-sensitizing

Repeated dose toxicity:
Value Species Type Test Substance
Oral NOAEL: 30 mg/kg
bw/day
Rat Chronic Analogue
Inhalation NOAEL: 70 mg/m
3
Rat Sub-chronic Analogue
STOT-SE: No classification.
STOT-RE: No classification.
Carcinogenicity: No evidence of carcinogenic effects.
Mutagenicity: No evidence of any mutagenic effects.
Reproductive toxicity: No evidence of any reproductive toxicity effects.
Aspiration hazard: No classification.
Alumina Trihydrate is not listed as a carcinogen by NTP, IARC, OSHA, or ACGIH.
Section 12 – Ecological Information
Eco-toxicity:
Fish toxicity: LC50>100 mg/l in Salmo trutta.
Invertebrate toxicity: EC50>100 mg/l in Daphnia Magna
Algae toxicity: EC50 >100 mg/l in Selenastrum capricornutum

Persistence and degradability: Not applicable for inorganic substances.
Bio-accumulative potential: Not applicable
Mobility in soil: Not applicable.
Results of PBT and vPvB assessment: This product does not meet the classification as PBT/vPvB.
Other adverse effects: None known.

Revision date 7/22/21 Alumina Trihydrate MSDS No. 9605.53
Page 4 of 5
Section 13 – Disposal Considerations
Disposal: Recycle if possible or landfill. This substance is inert and does not require special disposal methods. Follow
applicable Federal, state, and local regulations.
Section 14 – Transport Information
DOT Transportation Data (49 CFR 172.101): This product is not classified as dangerous under the transport regulations for
road, rail, sea, or air transport.
UN Number: not classified as dangerous goods
UN proper shipping name: Not classified as dangerous goods
Transport hazard classes: None
Packaging group: None
Environmental hazards: None
Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code: No hazardous goods.
Special precautions for user: None

Transport by land according to ADR/RID: Not applicable
Inland Navigation (ADN): Not applicable
Marine transport in accordance with IMDG: Not applicable
Air transport in accordance with IATA: Not applicable
Section 15 – Regulatory Information
EPA Regulations:
RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)
RCRA Hazardous Waste Classification (40 CFR 261.??): Not classified
CERCLA Hazardous Substance (40 CFR 302.4) not listed
SARA Toxic Chemical (40 CFR 372.65): Not listed
SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed
SARA 311/312 Hazard: None
OSHA Regulations:
Air Contaminant (29 CFR 1910.1000, Table Z-1, Z-1-A): Not listed
Proposition 65: Not listed

Inventory Lists: This product is listed on the following inventory lists:

International Regulations:
Regulation (EC) No 2037/2000 (Ozone Depleting Substances); Not applicable
Regulation (EC) No 850/2004 (Persistent Organic Pollutants): Not applicable
Regulation (EC) No 689/2008 (Export and Import of Dangerous Substances): Not applicable
Directive 2002/95/EC (RoHS): Not applicable
Directive 2002/96/EC (WEEE): Not applicable
Directive 1999/13/EC (VOC): Not applicable
Restrictions according to TITLE VIII of the Regulation (EC) No 1907/2006 (REACH): None

ADR: European agreement concerning the international transportation of hazardous goods by road
ADN: European agreement concerning the international transportation of hazardous goods by inland waterways
CAS: Chemical Abstracts Service
DSL: Domestic Substances List
EC50: Median effective concentration
ECL: Existing Chemicals List
IATA: International Air Transport Association
IECSC: Inventory of Existing Chemical Substances in China
TSCA Australia
AICS
Canada
DSL
China
IECSC
Europe
EINECS
Japan
ENCS
Korea
ECL
Listed Listed Listed Listed 244-492-7 1-17 KE-00980
Malaysia New Zealand
NZIoC
Swiss
Giftliste
Philippines
PICCS
Taiwan
NECI
Canada
WHMIS
Listed Listed G-4621 Listed Listed Not listed

Revision date 7/22/21 Alumina Trihydrate MSDS No. 9605.53
Page 5 of 5
IBC Code: International Code for the Construction and Equipment of Ships carrying Dangerous Chemicals in Bulk
IMDG: International Maritime Code for Dangerous Goods
LC50: Lethal concentration, 50%
LOAEL: Lowest observed adverse effect level
MARPOL: International Convention for the Prevention of Marine Pollution from Ships
NECI: National Existing Chemical Inventory
NOAEL: No observed adverse effect level
NZIoC: New Zealand Inventory of Chemicals
PBT: Persistent, Bio-accumulative, and Toxic Substance
PICCS: Philippine Inventory of Chemicals and Chemical Substances
RID: European agreement concerning the international transportation of hazardous goods by rail
EINECS: European Inventory of Existing Commercial Chemical Substances
ELINCS: European List of Notified Chemical Substances
REACH: Registration, Evaluation, Authorization, and Restriction of Chemicals
RoHS: Restriction of Hazardous Substances
TLV /TWA: Threshold limit value-time weighted average
TLV /STEL: Threshold limit value-short-time exposure limit
TSCA: Toxic Substances Control Act (USA)
VOC: Volatile Organic Compounds
vPvB: very Persistent and very Bio-accumulative
WEEE: Waste Electrical and Electronic Equipment
Section 16 – Other Information
Prepared By: Stephanie Nichols
Revision Notes: updated throughout
Product Grades Available from the R. J. Marshall Company (this list may be incomplete):
DF174 OF136 A202 (A) AH170(A,V) MX100
DF221 OF239LX A204(A) AH255(A) MX104
DF225 OF250 A205(A) AH270(A,V) MX200
DF230 OF255A A206(A) AH280(A,V)
DF320A OF300 A208(A) AH290(A,V) MAXTOOL710
DF325 OF500 A210 AH298(A) MAXTOOL815
DFG OF505 A212 AH330(A,V)
OF600 A245, A245G, A245GS AH331(A)
AH430(A, V)
OP50OC A102
A104(A) AH281(A)
A105 AH291(A)
A106 AH331(A)
A108 AH431(A)
A110
A112
A130
A145
Note: This includes all EXP ATH blends.

Disclaimer: Information contained herein is presented in good faith and is based on data believed to be accurate. However, no
warranty is expressed or implied regarding this information, or the results obtained from the use of this Safety Data Sheet,
whether it originates with The R. J. Marshall Company or others. This Safety Data Sheet relates only to the specific material
designated herein. It does not relate to use with other materials or processes. This information is supplied with the condition that
the user will make an appropriate determination as to its suitability for their purpose prior to using it.
HMIS
H
F
R
0
0
0
PPE
E

Sec. 8

Featherlite Series
Page:1of3
Last Revised: 4/9/2019
Print Date: 4/9/2019

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

Trade name:
General Use:

Featherlite 20, 50, 1000, 1500, 1700, 1250-LD

Filler material

Manufacturer Name
ACS International Products, L.P.
4775 S. Third Avenue
Tucson, AZ 85714

Tel: 520.889.1933

Emerqency Information

Emergency Telephone: 1-800-669-9214

Direct: 1-520-889-1933 M-Th: 7am to 4 pm, F: 7 to 11 am

2. HAZARDS IDENTIFICATION

Most lmportant Hazards: This product may irritate eyes and skin upon prolonged or repeated exposure. Inhalation of high
concentrations of dust may produce irritation of the respiratory tract. Not considered tobe toxic.

Specific Hazards: There is no known effect from chronic exposure to this product.

Potential health effects

Primary routes of exposure: Eye Contact-Yes lnhalation-Yes Skin-Yes Ingestion-No Skin Absorption-No

Symptoms of acute overexposure:

Skin: Extensive skin contact may cause dry irritated skin.

Eyes: lrritant by mechanical means.

Inhalation: Inhalation of dust may produce respiratory tract irritation, characterized by burning, sneezing and
coughing.

3. COMPOSITION/INFORMATION ON INGREDIENTS

Chemical Name

Abbr.

CAS No.

EIN

No.

Weight%

ECC No.

(lass

ACGIH TLV

OSHA

PEL

Other

Limits

Calcium
carbonate

1317-65-3

95-98%

N/A

N/A

15mg/M
5 (Total)

lsopentane
(encapsulated

in polymer)

78-78-4

<1% 601-006-00-1 3 N/A N/A N/A Crystaline Silica 14808-60-7 < .01% .10 mg/M3 .10mg/ M3(Resp) 4. FIRST AID MEASURES Skin: Eyes: Inhalation: Ingestion: May cause skin irritation. Wash contaminated skin with soap and water. Use a moisturizing lotion on dry irritated skin. Seek medical attention if irritation persists. May cause eye irritation. lf contact lenses are present, remove. lmmediately flush eyes with running water for a minimum of 15 minutes. Seek medical attention if irritation persists. Inhalation of dust may produce respiratory tract irritation, characterized by burning, sneezing and coughing. Remove individual to fresh air and allow to rest. Obtain medical assistant is breathing remains labored. Not applicable under normal industrial situations. Give large quantities of water to induce vomiting. Seek medical attention. 5. FIRE FIGHTING MEASURES ACS International Products, L.P. - SDS Featherlite Series Page:2of3 Last Revised: 4/9/2019 Print Date: 4/9/2019 Extinguishing Media: Water-Yes Carbon Dioxide-Yes Dry Chemical-Yes Foam-Yes Alcohol Foam-No Use a self-contained breathing apparatus approved by NIOSH for all fires. Flash Point: Non-combustible. No reported flammable limits. Explosive limits in air: N/A Unusual Fire and Explosion Hazard: Generally non-flammable; calcium carbonate will ignite on contact with fluorine. NFPA Classification: Flammable: 0 Health: 0 Reactivity: 0 Specific Hazards: 0 Special Remarks: In a sustained fire, calcium carbonate can produce calcium oxide. 6. ACCIDENTAL RELEASE MEASURES This product does not meet the criteria of a hazardous waste as defined under 40 CFR 261, RCRA. Spill Control: For small spills vacuum or scoop-up material for recovery or disposal in a sanitary landfill. Avoid dust producing conditions and use good ventilation. Water may be applied to spill to decrease dust. 7. HENDLING AND STORAGE Handling precautions: Avoid contact with skin and eyes. Do not breathe dust in concentrations above established limits. Afterhandling, always wash hands thoroughly with soap and water before eating, drinking, or smoking. Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels low. Storage: Store in a dry, cool and weil ventilated area. Avoid damaging storage containers. 8. EXPOSURE CONTROLS/PERSONAL PROTECTION Engineering Controls: Store/use in a weil ventilated area. Personal Protection Equipment Respiratory: Wear a filtering face piece dust mask wear ventilation is not adequate. Eye: Safety glasses with side shields are recommended. Skin: Where skin exposure is likely to occur, long sleeved clothing is recommended. Exposure Limits: Calciumsulfate: 15 mg/m3, 5 mg/m3 respirable fraction, for particulates not otherwise regulated. lsopentante: N/A 9. PHYSICAL AND CHEMICAL PROPERTIES Form: Granular solid. Color: White Odor: Little Specific Gravity: Solubility: 1.5-1.6 Insoluble in water Boiling Point: N/A Melting Point: N/A 10. STABILITY AND REACTIVITY Stability: lncompatibility: Decomposition: This product is stable. Avoid acids and other oxidizers. Avoid damage to containers. In a sustained fire, calcium sulfate can produce calcium oxide. 11. TOXICOLOGICAL INFORMAITON Significant Routes of Exposure: Inhalation. 12. ECOLOGICAL INFORMATION Ecotoxicity: Low toxicity for humans or animals under normal conditions of use. This product is slightly water soluble (calcium sulfate only). ACS International Products, L.P. Featherlite Series ACS International Products, L.P. - SDS Page:3of3 Last Revised: 4/9/2019 Print Date: 4/9/2019

Precautionary Statements:
Obtain special instructions before use.
Do not handle until all safety precautions have been read and understood.
Wear protective gloves/protective clothing/eye protection/face protection.
IF exposed or concerned: Get medical advice/attention.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Hazards not otherwise classified: This substance does not meet the criteria for a PBT or vPvB substance. No environmental or
physic-chemical hazards have been identified.

Section 3 – Composition / Information on Ingredients
Ingredient Name CAS Number % By wt
(di)antimony trioxide 1309-64-4 20,000 mg/kg bw (Fleming, 1938; Gross et al, 1955; Weil et al, 1978)
Dermal: LD50 rabbit > 8300 mg/kg bw (Gross et al, 1955)
Inhalation: LC50 rat > 5200 mg/m
3
(Leuschner, 2006)
Skin Corrosion/Irritation Based on available data, the classification criteria as skin irritants are not met. However,
under conditions of substantial heat and sweating, high levels of dermal dust exposure may
cause mechanical/physical blocking of sweat glands in the absence of any intrinsic
substantial primary skin irritating potential of the substance and in consideration of the
poor solubility of ATO. The Committee for Risk Assessment (RAC) decided in July 2009
that a harmonized skin irritation classification was not supported (ECHA/PR/09/09, 2009).
ATO is not a corrosive agent.
Serious eye damage/irritation Based on available data, the classification criteria for eye irritation are not met (Leuschner,
2005).
Respiratory or skin
sensitization
Based on available data, the classification for skin sensitization (Chevalier, 2005; Moore,
G.E, 1994) and irritation to the respiratory system (Leuschner, 2006) are not met.
Germ Cell Mutagenicity ATO does not cause systemic mutagenicity in vivo after oral administration. Negative in
vivo results on chromosome aberrations and micronuclei were obtained in two different
species via oral application-mouse (Elliot et al., 1998) and rat (Whitwell, 2006), (Kirkland
et al., 2007). An in vivo UDS assay in rats was also negative (Elliot et al., 1998). Based
on available data, the classification criteria according to regulation (EC) 1272/2008 as
germ cell mutagen are not met.
Reproductive Toxicity Based on the available long-term toxicity studies in rodent (Omura et al, 2002) and the
relevant information on the toxicokinetic behavior in rats, it is concluded that the
classification criteria for reproductive toxicity are not met because of the lack of absorption
and systemic distribution, and a correspondingly negligible exposure of reproductive
organs in male and female mammalian species to ATO.
The reference Schroeder R.E. (2003) was identified as a key study for developmental
toxicity and will be used for classification and labeling. This study suggests that the
NOAEC for developmental toxicity is >6.3 mg ATO/m
3
. Thus, based on available data,
the classification criteria as developmental toxicant according to regulation (EC)
1272/2008 are not met.
STOT-single exposure Based on available data, the classification criteria as STOT-single exposure, oral, and
inhalation are not met since no reversible or irreversible adverse health effects were
observed immediately or delayed after exposure.

STOT-repeated exposure NOAECinhalation = 0.51 mg/m
3
(Newton et al, 1994)
NOAELoral = 1686 mg/kg/d (Hext et al, 1999)

The NOAEC was determined in a study with a high background incidence of lung
inflammation in controls, therefore there is considerable uncertainty regarding the
reliability of this numerical value. The NOAEC is based on impaired lung clearance
that was observed at 4.50 mg/m
3
.
Based on available data, the classification criteria as STOT-repeated exposure, oral is
not met since no reversible or irreversible adverse health effects were observed
immediately or delayed after exposure (NOAEL is above the guidance value).
Based on available data, the classification criteria as STOT-repeated exposure,
inhalation is not met since there is an absence of consistent identifiable toxic effects
other than the non-specific PSP overload, which is an adaptive response not triggering
a STOT classification.

revision date 6/3/21 Flame Defense Antimony Oxide MSDS No. 9680.16
Page 5 of 9
Toxicity Endpoints Description of Effects
Carcinogenicity IARC classifies antimony trioxide as 2B possible carcinogenic to humans. ACGIH,
OSHA, and NTP do not classify antimony trioxide as a carcinogen. German MAK
Commission classified antimony trioxide as MAK-2 carcinogenic to humans.

ACGIH, OSHA, IARC, and NTP all classify arsenic as a carcinogen:
ACGIH: TLV-A1 confirmed human carcinogen.
OSHA: Ca
IARC-1 Carcinogenic to humans
NTP-K known to be a human carcinogen
German MAK Commission classified arsenic as MAK-1 confirmed human
carcinogen.

ACGIH and OSHA do not classify lead as a carcinogen.
IARC-2A Probably carcinogenic to humans.
NTP-R: Reasonably anticipated to be carcinogenic to humans.
German MAK-2 considered to be carcinogenic

(Di)antimony trioxide is classified as inhalation carcinogen category 2 (according to
Regulation (EC) 1272/2008).
Three chronic inhalation studies in rats are available for the carcinogenicity
assessment of (di)antimony trioxide (Watt, 1983; Groth et al., 1986a, Newton et al.,
1994). The exposure duration in all three animal studies is 12 months and thus all
studies deviate from the OECD guideline on chronic toxicity/carcinogenicity, which
prescribes an exposure period of 24 months for rats. The study by Newton et al.,
(1994) showed no (di)antimony trioxide related lung tumors, neither in males nor
females, at any dose level up to 4.5 mg/m
3
. The study shows that (di)antimony
trioxide reduced the pulmonary clearance rate in a dose-dependent manner. However,
it is well known that reduced lung clearance rate at chronic exposure of rats to poorly
soluble particles (PSPs) can result in pulmonary overload, subsequently followed by
an inflammatory response, epithelial cell hypertrophy and/or hyperplasia, and
squamous metaplasia. The persistence of these tissue responses over chronic time
periods can lead to the secondary development of lung tumors (Hext, 1994).
Due to the deviations from the OECD guidelines and the critical shortcoming in all
three studies, US NTP (National Toxicology Program) has embarked on a testing
program leading to a new, full 2-year bioassay; finalized end 2010 and reporting
expected in 2014-2015.
The overall expert judgment by TC NES was that the most likely mechanism for
carcinogenicity appears to be impaired lung clearance and particle overload followed
by an inflammatory response, fibrosis, and tumors. Consequently, (di)antimony
trioxide can be regarded as a threshold carcinogen and as a starting point for a
quantitative risk characterization, the NOAEC of 0.51 mg/m
3
derived for local
repeated dose toxicity is also used for carcinogenicity. However, in this context, it is
questionable whether effects caused by pulmonary overload in the rat are also relevant
for humans.

NOAEC: 0.51 mg/m
3
/ Target organ: respiratory: lung
Aspiration hazards ATO as an inorganic metal oxide is void of a low surface tension effect and as a solid
does have a very high viscosity, i.e., an aspiration hazard can safely be excluded.
Based on available data, the classification criteria are not met.

revision date 6/3/21 Flame Defense Antimony Oxide MSDS No. 9680.16
Page 6 of 9
Section 12 – Ecological Information
Acute aquatic toxicity test results:
Marine fish (Pagrus major) 96 hr LC50 6.9 mg Sb/L (Takayanagi, 2001)
Freshwater fish (Pimephales promelas) 96 hr LC50 14.4 mg Sb/L (Brooke et al, 1986)
Invertebrates (Chlorohydra viridissimus) 96 hr LC50 1.77 mg SB/L (TAI, 1990)
Algae (Pseudokirchneriella subcapitata) 72 hr ErC50 (growth rate) >36.6 mg Sb/L (Heijerick et al, 2004)
Plants (Lemna minor) 4 d EC50 >25.5 mg Sb/L (Brooke et al, 1986)
Chronic aquatic toxicity test results:
Freshwater fish (Pimephales promelas) 28 d NOEC/LOEC (growth;
length)
1.13/2.31 mg Sb/L (Kimball, 1978)
Invertebrates (Daphnia magna) 21 d NOEC/LOEC (reproduction) 1.74/3.13 mg Sb/L (Heijerick et al, 2003)
Algae (Pseudokirchneriella subcapitata) 72 h NOEC/LOEC (growth rate) 2.11/4.00 mg Sb/L (Heijerick et al, 2004)
Chronic sediment toxicity test results:
Midge (Chironomus riparius) 14 d NOEC (growth) 78 mg Sb/kg ww (Heijerick et al, 2005)
Chronic terrestrial toxicity test results (values were determined in a soil spiked with Sb2O3 and aged for 31 weeks before
testing):
Soil invertebrates NOEC 999 mg Sb/kg dw (Moser, 2007)
Plants NOEC 999 mg Sb/kg dw (Smolders et al., 2007)
Soil microorganisms NOEC 2930 mg Sb/kg dw (Smolders et al.,
2007)
Toxicity tests for microorganisms (for STP)
Aquatic microorganisms NOEC 2.55 mg Sb/L (EPAS, 2005)
Inhibition of nitrification EC50 27 mg Sb/L (EPAS, 2005)

Persistence and degradability: Whereas antimony formally meets the criterion for persistence based on the absence of any
degradation, this criterion is considered not to apply to inorganic elements. In addition, under conditions of a standard EUSES lake
and the median partition coefficient for suspended matter, antimony meets the criteria for rapid removal from the water column.

Bioaccumulative potential: Antimony does not meet the criteria for bioaccumulation: a BCF for aquatic organisms of 40 and a
BSAF of 1 for earthworms are derived and are all much lower than the threshold of 2,000 l/kg. Also, there is evidence to support
that antimony does not biomagnify in the food chain. Therefore, antimony is not considered bioaccumulative (B) or very
bioaccumulative (vB) based on the definitive criteria.

Mobility in soil: A log Kp of 2.07 has been determined for soil.

Results of PBT and vPvB assessment: The PBT and vPvB criteria of Annex XIII to the Regulation do not apply to inorganic
substances, such as antimony and its inorganic compounds. However, the available data have been compared to the criteria:
Antimony trioxide does not meet the criteria for PBT and vPvB. For (T): Chronic NOEC values are available for fish, invertebrates,
and algae. The lowest NOEC is 1.13 mg Sb/L for fish (Kimball, 1978). Antimony and antimony compounds do not meet any of the
toxicity criteria based on carcinogenicity, mutagenicity, or reprotoxicity (See Section 11) and there is no evidence of other chronic
concerns. Therefore, antimony is not considered toxic (T) based on the definitive criteria.

Antimony, and therefore (di)antimony trioxide is not PBT or vPvB.

Other adverse effects: (Di)antimony trioxide is not expected to contribute to ozone depletion, ozone formation, global warming, or
acidification.

revision date 6/3/21 Flame Defense Antimony Oxide MSDS No. 9680.16
Page 7 of 9
Section 13 – Disposal Considerations
Waste treatment methods: Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved
waste disposal facility. If the percentage of ATO in waste is greater than 1%, then the waste must be treated as hazardous under
Directive 91/689/EEC. If the concentration is below 1%, then ATO-containing waste shall be handled as non-hazardous waste. All
waste should be removed by a licensed waste removal company, incinerated, or recycled. If only the total antimony concentration in
waste is known, then waste with greater than 1% antimony should be treated as hazardous under Directive 91/689/EEC. Processing,
use, or contamination of this product may change the waste management options. State and local disposal regulations may differ
from federal disposal regulations. Dispose of container and unused contents following federal, state, and local requirements. The
used packaging is only meant for packing this product. After usage, empty the packaging completely.

Suitable disposal of hazardous waste for manufacturing and industrial use: Keep separate and dispose of to either
-Hazardous waste incineration operated according to Council Directive 2008/98/EC on waste, Directive 2000/76/EC on the
incineration of waste, and the Reference Document on the Best Available Techniques for Waste Incineration of August 2006.
-Hazardous landfill operated under Directive 1999/31/EC.
Suitable disposal of non-hazardous waste for manufacturing and industrial use: Disposal of wastes is possible via incineration
(operated according to Directive 2000/76/EC on the incineration of waste) or landfilling (operated according to Reference Document
on the Best Available Techniques for Waste Industries of August 2006 and Council Directive 1999/31/EC and Council Decision 19
December 2002).
Suitable disposal of waste for professional use: Waste from end-of-life articles can be disposed of as municipal waste, except
when they are separately regulated, like electronic devices, batteries, vehicles, etc. Disposal of wastes is possible via incineration
(operated according to Directive 2000/76/EC on the incineration of waste) or landfilling (operated according to Reference Document
on the Best Available Techniques for Waste Industries of August 2006 and Council Directive 1999/31/EC and Council Decision 19
December 2002).
Section 14 – Transport Information
DOT Transportation Data (49 CFR 172.101):
UN1549, Class 6, Division 6.1, PG III antimony compounds inorganic, solid, n.o.s. (Antimony trioxide) does not apply due to
special provision 35 (49CFR172.102) which states that Antimony sulphides and oxides which do not contain more than 0.5%
of arsenic calculated on the total mass do not meet the definition of Division 6.1.

However, Antimony Trioxide is listed on Appendix A of 49CFR172.101 for hazardous substances and reportable quantities.
RQ = 1000 lbs. (454kg). Because antimony trioxide is listed in Appendix A it falls under the proper shipping name:

Hazardous substances, liquid or solid, n.o.s. which directs you to see: Environmentally hazardous substances, solid, n.o.s.

RID/ADR: not restricted ADNR/AND: not restricted IATA/ICAO: not restricted
IMO/IMDG: not restricted

For packages under 1000# For packages 1000# or greater
UN Number: Not applicable
UN proper shipping name: Not applicable
Transport hazard class: Not applicable
Packaging group: Not applicable
Environmental hazards: No environmental hazard
Special precautions for user: Not available
Transport in bulk according to Annex II or
MARPOL72/78 and the IBC Code: Not available
Harmonized Tariff Code: 2825.80.0000
Basic Description: RQ, UN3077, Environmentally
hazardous substance solid, n.o.s. (Antimony Trioxide), 9,
III.

UN Number: UN3077
UN proper shipping name: Environmentally hazardous
substance solid, n.o.s. (Antimony Trioxide)
Transport hazard class: 9
Packaging group: III
Environmental hazards: No environmental hazard
Special precautions for user: Not available
Transport in bulk according to Annex II or
MARPOL72/78 and the IBC Code: Not available
Marine Pollutant: No

revision date 6/3/21 Flame Defense Antimony Oxide MSDS No. 9680.16
Page 8 of 9
Section 15 – Regulatory Information

EPA Regulations:
RCRA Hazardous Waste Number: Not listed (40 CFR 261.33)
RCRA Hazardous Waste Classification (40 CFR 261.??): Not classified
CERCLA Hazardous Substance (40 CFR 302.4) Antimony Trioxide =1000lbs final RQ; Arsenic = 1lb, Lead = 10lbs
SARA 311/312 Hazard: Carcinogenicity
SARA EHS (Extremely Hazardous Substance) (40 CFR 355): Not listed
Antimony Oxide is subject to the reporting requirements of Section 313 of Title III of the Superfund Amendments and
Reauthorization Act of 1986 and 40 CFR 372.0 (de minimis concentration = 1%)
Arsenic is subject to the reporting requirement of Section 313 of Title III of the Superfund Amendments and Reauthorization
Act of 1986 and 40 CFR372.0. (de minimis concentration = 0.1%)
CWA (Clean Water Act) Hazardous Substances (40 CFR116.4): Present; 1000lb RQ.

Prop65: This product can expose you to chemicals including arsenic and antimony oxide which are known to the State of
California to cause cancer.

OSHA Regulations:
Air Contaminant (29 CFR 1910.1000, Table Z-1, Z-1-A): Not listed

TSCA
This substance is listed on the Chemical Substances Inventory of the Toxic Substance Control Act (TSCA Inventory [USA]).
Please note that this product is not subject to any legal reporting requirements under these acts.
FDA-Indirect Food Additives: 21CFR175.105.

UNITED STATES REGULATIONS
California: 22CCR Presumed Hazardous Wastes List: Present
California: 8 CCR Section 339 Directors List of Hazardous Substances: Present
California: Air Toxics Hot Spots Act Chronic Reference Exposure Levels (RELs): 0.2 ug/m3 REL (inhalation).
California: Air Toxics Hot Spots Act-Emission Inventory Criteria & Guidelines: known or potential carcinogen: 9/90; ADOA 1.0
lbs/yr.
California: Toxic Air Contaminant List (AB 1807, AB2728): Category IIa.
Connecticut: Hazardous Air Pollutants- HLVs (30 min): 25 ug/m3 HLV (handling use and production as Sb);
HLVs (8hr): 5ug/m3 HLV (handling use and production as Sb).
Delaware: Pollutant Discharge Requirements: 1000lb RQ.
Massachusetts: Oil and Hazardous Material List: 50lb RQ.
Michigan: Polluting Materials List: 100lb TRQ.
Minnesota: Hazardous Substance List: Carcinogen (handling and use as Sb production).
New Jersey: Discharge Prevention List of Hazardous Substances: Present.
New York: Reporting of Releases Part 597-List of Hazardous Substances: 1000lb RQ (air); 100lb RQ (land/water).
Pennsylvania: RTK Environmental Hazard List: Present.
Rhode Island: Hazardous Substance List: Toxic.
Texas: Effect Screening Levels-Long Term: 0.5ug/m3 ESL. Effect Screening Levels-Short Term: 5ug/m3 ESL.
INTERNATIONAL REGULATIONS
Canada: Listed on the DSL.
Canada: WHMIS: Classification of Substances: D2A. Ingredient Disclosure List 1%.
European Community: This product is listed on EINECS, the European Inventory of Existing Commercial Chemical Substances
# 215-175-0.
EU Dangerous Substances Directive: Carc. Cat. 3; R-40, Labels Xn; R-40 Safety Phrases: S-2, S-22, S-36.
Australia: This product is listed on the List of Designated Hazardous Substances-Carc. Cat.3; R-40.
Australia: This product is listed on the Inventory of Chemical Substances (AICS).
Bahrain: This product is listed on the Restricted Chemicals List (production).
Belgium: This product is listed on the Limits on Substances and Preparations list.
China: This product is listed on the Chinese Inventory.
Denmark: This product is listed on the List of Undesirable Substances.
Germany Water Classification (VwVwS): Water Hazard Class-hazard Class1, hazard to waters.
Japan: This product is listed on the Existing and New Chemical Substances list- #1-543 and on the Deleterious Substances List.
Italy: Listed as a Category 3 Carcinogen.
Korea: This product is listed on the Existing and Evaluated Chemical Substances List # KE-09846.

revision date 6/3/21 Flame Defense Antimony Oxide MSDS No. 9680.16
Page 9 of 9
New Zealand: This product is listed on the HSNO Composite List of Single Component Substances Considered for Transfer.
Philippines: This product is listed on the Inventory of Chemicals and Chemical Substances (PICCS) List.
Switzerland: This product is listed on the Toxic Substances Classification List: Class 4.
Taiwan: Listed on NECI.
United Kingdom: This product is listed on the Dangerous Substances CHIP Approved Supply List; Classification: Xn; R-40,
Labels: Xn, Safety Phrases: S-2, S-22, S-36.

(Di)antimony trioxide is not a SEVESO substance, not an ozone-depleting substance, and not a persistent organic pollutant.
Section 16 – Other Information
Prepared By: Stephanie Nichols
Revision Notes: updated Section 14

Product Grades Available from the R. J. Marshall Company (this list may be incomplete):

FDAO

Disclaimer: Information contained herein is presented in good faith and is based on data believed to be accurate. However, no
warranty is expressed or implied regarding this information, or the results obtained from the use of this Safety Data Sheet,
whether it originates with The R. J. Marshall Company or others. This Safety Data Sheet relates only to the specific material
designated herein. It does not relate to use with other material or processes. This information is supplied with the condition that
the user will make an appropriate determination as to its suitability for their purpose prior to using it.