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SAFETY DATA SHEET
Effective date: 02 September 2020
Replaced edition from: 25 April 2018
Distribution date: 02 September 2020
TRADE NAME
ZOLTEK PX CARBON FIBER
SECTION 1: Identification of the substance/mixture and the company/undertaking
1.1 Product identifier
Product name ZOLTEK PX Carbon Fiber
Synonyms n/a
Chemical family carbon fiber
Product description continuous, split-tow (Kassen), chopped, milled carbon
fiber or fabric
1.2 Relevant identified uses of the substance or mixture and uses advised against
1.2.1 Relevant uses industrial applications
1.2.2 Uses advised against none known
1.3 Details of the supplier of the safety data sheet
Company Zoltek Companies, Inc.
3101 Mckelvey Road
St. Louis, MO 63044
USA
(314) 291-5110
www.zoltek.com
E-mail enquiry sds@zoltek.com
1.4 Emergency telephone number +1 (314) 291-5110 8AM-5PM / M-F
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SECTION 2: Hazards Identification
2.1 Classification of the substance or mixture
Product definition article
2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]
not classified
2.1.2 Classification according to Regulation 67/548/EEC or 1999/45/EC
Hazard symbols none
R-phrases none
The product does not require a hazard warning label, in
accordance with OSHA HazCom and EC-directives
2.2 Label elements
Labeling according to Regulation 67/548/EEC or 1994/45/EC
Hazard symbols none
R-phrases none
S-phrases none
Special labeling not applicable
2.3 Other hazards
Physio-chemical hazards see SECTION 10
In the supplied form the product itself is not explosive at all;
however, the build-up of fines and dust can lead to a risk of
dust explosions.
Human health dangers see SECTION 11 and below
Eye Dust may cause temporary irritation.
Skin Dust may cause mild irritation. In some cases, the dust
may cause allergic skin reactions.
Inhalation Dust may cause mild irritation.
Environmental hazards see SECTION 12
Other hazards This product and its dusts are electrically conductive
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SECTION 3: Composition/information on ingredients
3.1 Product-type article
Component CAS. # EC # %
Carbon fiber (carbon) / 7440-44-0 231-153-3 91-100
polyacrylonitrile (PAN)-based
(Nitrogen)* (7727-37-9) (231-783-9) (0-7%)
(Oxygen)* (7782-44-7.) (231-956-9) (0-2%)
*as part of carbon fiber
Sizing proprietary n/a 0-9
SECTION 4: First aid measures
4.1 Description of first aid measures
General information not applicable
Inhalation Remove from the area of the dust to fresh air. Seek
medical attention if you feel unwell.
Skin contact Remove by tapping skin with adhesive surface material,
such as Scotch clear cellophane tape
Wash affected areas thoroughly with soap and water.
Eye contact Flush eyes with water for 15 minutes.
Ingestion In the event of deliberate ingestion, do not induce vomiting
unless directed to do so by consulting with a doctor.
4.2 Most important symptoms and effects, both acute and displayed
no data available
4.3 Indication of any immediate medical attention and special treatment
no data available
SECTION 5: Firefighting measures
5.1 Extinguishing media
Suitable extinguishing media normal firefighting media and procedures
Unsuitable extinguishing media dependent on processing plant conditions
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5.2 Special hazards arising from the substance or media
airborne fibers are electrically conductive
CO2, CO and a minute amount of N2, HCN and H2O vapors
may be formed during combustion
5.3 Advice for firefighters self-contained breathing apparatus (SCBA)
SECTION 6: Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
6.1.1 For non-emergency personnel not applicable
6.1.2 For emergency responders not applicable
6.2 Environmental precautions not applicable
6.3 Methods and material for containment and cleaning up
6.3.1 For containment In case of spill, collect the spilled materials. If the material
is not contaminated, put it into a clean container and it can
be reused. Otherwise, dispose of it properly.
6.3.2 For cleaning up Because the dust is electrically conductive and may
become airborne, clean up with a vacuum. If an electrical
appliance is used, take the steps necessary to avoid the
risk of electrical shock.
6.4 Preventative measures against second disasters
Remove possible sources of ignition in the surrounding
area
SECTION 7: Handling and storage
7.1 Precautions for safe handling No special measures necessary if used properly.
7.2 Conditions for safe storage, including any incompatibilities
Airborne particles and filaments should be controlled so as
to minimize skin irritation and electrical shorts in switch
gears, etc. due to conductivity of fiber.
Do not store together with oxidizing agents
7.3 Specific end use(s) see section 1.2
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SECTION 8: Exposure controls/personal protection
8.1 Control parameters
Occupational exposure limits OSHA and ACGIH (USA) have not established air
contamination for carbon fibers. Under certain conditions
this substance may be a nuisance dust. OSHA has an
established standard for particulates not otherwise
regulated (nuisance dust) set at 5 mg/m
3
(respirable
fraction) and15 mg/m
3
(total dust). ACGIH has established
an exposure value of 3 mg/m
3
(respirable fraction) and 10
mg/m
3
(total).
Japan Society of Occupational Health sets 0.5mg/m3 limit
for inhalation dust and 2.0mg/m3 as the total dust that are
classified as Class 1 dust by the Japanese regulation
(2011)
NHFPC (PRC) has an established standard for carbon
fiber s particulates not otherwise regulated set at 6mg/m
3
ESTL (total dust) and 3mg/m
3
TWA (total dust),
Belgium has established an Occupational Exposure Limit
for carbon fiber as 2 fiber/cm
3
TWA.
8.2 Exposure controls
8.2.1 Appropriate engineering controls local exhaust for airborne fiber removal.
8.2.2 Personal protection equipment
8.2.2.1 Eye and face protection safety glasses
8.2.2.2 Skin protection
Hand protection protective gloves
Other skin protection Recommend garments (i.e. long pants and long sleeve
shirts) to eliminate possible skin irritation
8.2.2.3 Respiratory protection Personal dust respirators applicable if high degree of fiber
fly is experienced.
8.2.2.4 Thermal hazards not applicable
8.2.3 Environmental exposure controls see SECTION 6 & 7
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SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Appearance black fiber
Odor odorless
pH not applicable
Melting point / freezing point ~ 3,500 C
Initial boiling point and boiling range not applicable
Flashpoint not applicable
Evaporation rate not applicable
Flammability (solid, gas) not applicable
Upper/lower flammability or
explosive limits not applicable
Vapor pressure not applicable
Vapor density not applicable
Specific gravity (relative density) 1.81 (H2O @ 4 C = 1.00)
Solubility(ies)
water negligible (dispersible)
Partition coefficient
n-octanol/water not applicable
Auto ignition temperature not applicable
Decomposition temperature (in Air)
sizing preparation; >240 C
carbon fiber; >650 C
Viscosity not applicable
Explosive properties: potential for weak explosion with milled fiber or dusts
Class St 1* / <50 Kst (bar m/s)
*OSHA CPL 03-00-008 Combustible Dust National Emphasis Program
Oxidizing properties not applicable
9.2 Other information no other information available
SECTION 10: Stability and reactivity
10.1 Reactivity see SECTION 10.3
10.2 Chemical stability stable under normal ambient and anticipated storage and
handling conditions of temperature and pressure
10.3 Possibility of hazardous reactions can react with strong oxidizing agents
10.4 Conditions to avoid see SECTION 7
10.5 Incompatible materials see SECTION 10.3
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10.6 Hazardous decomposition products Products of combustion and decomposition will depend on
other materials present in the fire and the fire conditions.
Burning will produce CO2, CO, and minute amounts of N2,
HCN and H2O.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity no data available
Skin corrosion/irritation no data available
Serious eye damage/irritation no data available
Respiratory or skin sensitization no data available
Germ cell mutagenicity no data available
Carcinogenicity no data available
Reproductive toxicity no data available
STOT-single exposure no data available
STOT-repeated exposure no data available
Aspiration hazard not an inhalation hazard
filament diameter >3 m / non-respirable (IARC)
SECTION 12: Ecological information
12.1 Toxicity not data available
12.2 Persistence and degradability no data available
12.3 Bioaccumulative potential no data available
12.4 Mobility in soil no data available
12.5 Results of PBT and nPvB assessment no data available
12.6 Other adverse effects ecological data not available
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Waste materials must be disposed of in accordance with the Directive on waste 2008/98/EC and any other
applicable national or local regulations.
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SECTION 14: Transport information
14.1 UN number see SECTION 14.2
14.2 UN proper shipping name not Dangerous Goods
ADR/RID (land)
ADN (inland navigation)
IMDG (marine)
14.3 Transport hazard class(es) see SECTION 14.2
14.4 Packing group see SECTION 14.2
14.5 Environmental hazards see SECTION 14.2
14.6 Special precautions to user see SECTION 6 to 8
14.7 Transport in bulk according to Annex II of MARPOL73/78 and the IBC code
not applicable
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
TSCA Status Exempt – satisfies article definition under 40 CFR 704.3
15.2 Chemical safety assessment has not been carried out
SECTION 16: Other information
Revision date: 02 September 2020, CN: 1985
Previous revision: 25 April 2020, CN: 1685
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Abbreviations and acronyms ADN = Accord europ en relative au transport international
des marchandises dangereuses par voie de navigation
int rieure
ADR = Accord europ relative au transport international
des marchandises Dangereuses par Route
CAS = Chemical Abstracts Service
CLP = Classification, Labelling and Packaging
EEC = European Economic Community
EINECS = European Inventory of Existing Commercial
Chemical Substances
ELINCS = European List of Notified Chemical Substances
IBC-Code = International Coder for the Construction and
Equipment of Ships carrying Dangerous Chemicals in Bulk
IMDG = International Maritime Code for Dangerous Goods
MARPOL = International Convention for the Prevention of
Marine Pollution from Ships
OSHA = Occupational Safety and Health Administration
PBT = Persistent, Bioaccumulative and Toxic substance
RID = R glement concermant le transport international
ferroviare de marchandises dangereuses
Disclaimer: This information is furnished without warranty, expressed or implied, except that it is believed
to be accurate to the best knowledge of Zoltek Companies, Inc. The information presented in this SDS is
related only to specific material designated herein. Zoltek Companies, Inc. assumes no legal responsibility
for the use or reliance upon these data. The user should review any recommendation in the specific
context of the intended use to determine whether appropriate.