SAFETY DATA SHEET
This safety data sheet was created pursuant to the requirements of:
OSHA Hazard Communication Standard (29 CFR 1910.1200)
Issuing Date 21-Sep-2020 Revision date 29-Jan-2021 Revision Number 2
1. Identification
Product identifier
Product Name Omnirad 819
Other means of identification
Product Code(s) 10000182
Recommended use of the chemical and restrictions on use
Recommended use Photoinitiator.
For use in industrial installations or professional treatment only.
Restrictions on use Consumer use.
Details of the supplier of the safety data sheet
Emergency telephone number
Emergency Telephone (US) +1 760 476 3962 ## 333 293
TF (US)+1 866 519 4752 ## 333 293
2. Hazard(s) identification
Classification
Skin sensitization Category 1A
Chronic aquatic toxicity Category 4
Hazards not otherwise classified (HNOC)
Not applicable
Label elements
Supplier Address
IGM Resins US Inc.
3300 Westinghouse Blvd.
Charlotte, NC 28273, United States
T: +1-704-588-2500
F: +1-704-945-8728
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OR819 – Omnirad 819 Revision date 29-Jan-2021
Precautionary statements
P261 – Avoid breathing dust/fume/gas/mist/vapors/spray
P272 – Contaminated work clothing should not be allowed out of the workplace
P280 – Wear protective gloves
P302 + P352 – IF ON SKIN: Wash with plenty of soap and water
P333 + P313 – If skin irritation or rash occurs: Get medical advice/attention
P363 – Wash contaminated clothing before reuse
P501 – Dispose of contents/ container to an approved waste disposal plant
P273 – Avoid release to the environment
Other information
No information available.
3. Composition/information on ingredients
Substance
Chemical name CAS No Weight-% Trade secret
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide 162881-26-7 80 – <100% * *The exact percentage (concentration) of composition has been withheld as a trade secret. Batch-to-batch variability occurs when the product has a set formula but there may be some very small differences among the batches that occur during the production process. 4. First-aid measures Description of first aid measures General advice Show this safety data sheet to the doctor in attendance. Inhalation Remove to fresh air. Eye contact Rinse thoroughly with plenty of water for at least 15 minutes, lifting lower and upper eyelids. Consult a physician. Skin contact Wash with soap and water. May cause an allergic skin reaction. In the case of skin irritation or allergic reactions see a physician. Ingestion Clean mouth with water and drink afterwards plenty of water. Most important symptoms and effects, both acute and delayed Symptoms Itching. Rashes. Hives. Indication of any immediate medical attention and special treatment needed Note to physicians May cause sensitization in susceptible persons. Treat symptomatically. 5. Fire-fighting measures Warning Hazard statements H317 - May cause an allergic skin reaction H413 - May cause long lasting harmful effects to aquatic life _____________________________________________________________________________________________ Page 2 / 10 _____________________________________________________________________________________________ OR819 - Omnirad 819 Revision date 29-Jan-2021 Suitable Extinguishing Media Use extinguishing measures that are appropriate to local circumstances and the surrounding environment, Alcohol resistant foam, Carbon dioxide (CO2), Dry chemical, Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. Alcohol resistant foam. Carbon dioxide (CO2). Dry chemical. Large Fire CAUTION: Use of water spray when fighting fire may be inefficient. Unsuitable extinguishing media Do not scatter spilled material with high pressure water streams. Specific hazards arising from the chemical Product is or contains a sensitizer. May cause sensitization by skin contact. Explosion data Sensitivity to mechanical impact None. Sensitivity to static discharge None. Special protective equipment for fire-fighters Firefighters should wear self-contained breathing apparatus and full firefighting turnout gear. Use personal protection equipment. 6. Accidental release measures Personal precautions, protective equipment and emergency procedures Personal precautions Avoid contact with skin, eyes or clothing. Ensure adequate ventilation. Use personal protective equipment as required. Evacuate personnel to safe areas. Keep people away from and upwind of spill/leak. Methods and material for containment and cleaning up Methods for containment Prevent further leakage or spillage if safe to do so. Methods for cleaning up Pick up and transfer to properly labeled containers. 7. Handling and storage Precautions for safe handling Advice on safe handling Handle in accordance with good industrial hygiene and safety practice. Avoid contact with skin, eyes or clothing. Ensure adequate ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Do not eat, drink or smoke when using this product. Take off contaminated clothing and wash before reuse. Conditions for safe storage, including any incompatibilities Storage Conditions Keep containers tightly closed in a dry, cool and well-ventilated place. Store in a cool, dry area away from potential sources of heat, open flames, sunlight or other chemicals. Protect from sunlight. Do not expose to temperatures exceeding 50 C/122 F. Protect from sunlight. Do not expose to temperatures exceeding 50 C/122 F. 8. Exposure controls/personal protection Control parameters Exposure Limits This product, as supplied, does not contain any hazardous materials with occupational exposure limits established by the region specific regulatory bodies. _____________________________________________________________________________________________ Page 3 / 10 _____________________________________________________________________________________________ OR819 - Omnirad 819 Revision date 29-Jan-2021 Biological occupational exposure limits This product, as supplied, does not contain any hazardous materials with biological limits established by the region specific regulatory bodies. Appropriate engineering controls Engineering controls Showers Eyewash stations Ventilation systems. Individual protection measures, such as personal protective equipment Eye/face protection Wear safety glasses with side shields (or goggles). Hand protection Wear suitable gloves. Gloves Duration of contact PPE - Glove material Glove thickness Break through time Nitrile rubber 0.4 mm 60 minutes Butyl rubber 0.4 mm 60 minutes Skin and body protection Wear suitable protective clothing. Respiratory protection No protective equipment is needed under normal use conditions. If exposure limits are exceeded or irritation is experienced, ventilation and evacuation may be required. General hygiene considerations Handle in accordance with good industrial hygiene and safety practice. 9. Physical and chemical properties Information on basic physical and chemical properties Physical state Solid Appearance Powder, crystalline Color yellow Odor Odorless Odor threshold No information available Property Values Remarks Method pH Not applicable Melting point / freezing point 131.4 C / 268.5 F Boiling point / boiling range No data available Flash point No data available None known Evaporation rate No data available Flammability (solid, gas) No data available Flammability Limit in Air Upper flammability or explosive limits No data available Lower flammability or explosive limits 40 g/m Vapor pressure < 0 Pa @ 20 C Vapor density No data available Relative density 1.19 @ 21 C Water solubility <0.1 mg/l @ 20 C Solubility(ies) No data available Partition coefficient log Pow = 5.8 @ 22 C Autoignition temperature No data available None known Decomposition temperature Kinematic viscosity Not applicable Dynamic viscosity Not applicable _____________________________________________________________________________________________ Page 4 / 10 _____________________________________________________________________________________________ OR819 - Omnirad 819 Revision date 29-Jan-2021 Other information Explosive properties No information available Oxidizing properties No information available Softening point No information available Molecular weight 418.5 g/mol VOC Content (%) No information available Liquid Density No information available Bulk density ~ 600 kg/m 10. Stability and reactivity Reactivity No information available. Chemical stability Stable under normal conditions. Possibility of hazardous reactions None under normal processing. Hazardous polymerization Polymerization can occur. Conditions to avoid Extremes of temperature and direct sunlight. Extremes of temperature and direct sunlight. Incompatible materials None known based on information supplied. Hazardous decomposition products None known based on information supplied. 11. Toxicological information Information on likely routes of exposure Product Information Inhalation Specific test data for the substance or mixture is not available. Eye contact Specific test data for the substance or mixture is not available. Skin contact May cause sensitization by skin contact. Specific test data for the substance or mixture is not available. Repeated or prolonged skin contact may cause allergic reactions with susceptible persons. (based on components). Avoid release to the environment. Ingestion Specific test data for the substance or mixture is not available. Symptoms related to the physical, chemical and toxicological characteristics Symptoms Itching. Rashes. Hives. Acute toxicity Numerical measures of toxicity Component Information Chemical name Oral LD50 Dermal LD50 Inhalation LC50 phenyl bis(2,4,6-trimethylbenzoyl)-phos phine oxide 162881-26-7 > 2000 mg/kg ( Rat ) > 2000 mg/kg ( Rat ) –
Delayed and immediate effects as well as chronic effects from short and long-term exposure
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Skin corrosion/irritation No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 404: Acute Dermal Irritation/Corrosion
Species Rabbit
Exposure route Dermal
Effective dose 0.5 g
Exposure time 4 hours
Results edema 0 erythema non-irritant

Serious eye damage/eye irritation No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 405: Acute Eye Irritation/Corrosion
Species Rabbit
Exposure route Eye
Effective dose 0.1 mL
Exposure time 72 hours
Results non-irritant

Respiratory or skin sensitization May cause sensitization by skin contact.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 406: Skin Sensitization
Species Guinea pig
Exposure route Injection
Results Sensitizing

Germ cell mutagenicity No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 471: Bacterial Reverse Mutation Test
Species in vitro
Results Negative

Method OECD Test No. 473: In vitro Mammalian Chromosome Aberration Test
Species in vitro
Results Negative

Carcinogenicity No information available.
Reproductive toxicity No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 414: Prenatal Development Toxicity Study
Species Rat
Results Developmental toxicity NOAEL >=1000 mg/kg bw/day

STOT – single exposure No information available.
STOT – repeated exposure No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method OECD Test No. 407: Repeated Dose 28-day Oral Toxicity Study in Rodents
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OR819 – Omnirad 819 Revision date 29-Jan-2021
Species Rat
Exposure route Oral
Exposure time 28 days
Results NOAEL 1000 mg/kg bw/day

Method OECD Test No. 408: Repeated Dose 90-Day Oral Toxicity Study in Rodents
Species Rat
Exposure route Oral
Exposure time 92 – 93 days
Results NOEL 300 mg/kg bw/day

Aspiration hazard No information available.
Other adverse effects No information available.
Interactive effects No information available.
12. Ecological information
Ecotoxicity May cause long lasting harmful effects to aquatic life.
Product Information
Chemical name Algae/aquatic plants Fish Toxicity to
microorganisms
Crustacea
phenyl
bis(2,4,6-trimethylbenzoyl
)-phosphine oxide
162881-26-7
EC50 > 0.26 mg/L (72h,
Desmodesmus
subspicatus)
NOEC > 0.26 mg/L (72h,
Desmodesmus
subspicatus)
LC50 > 0.09 mg/L (96h,
Danio rerio)
NOEC > 0.09 mg/L (96h,
Danio rerio)
EC50 > 100 mg/l (3h,
Activated sludge)
EC50 > 1.175 mg/L (48h,
Daphnia magna)
Persistence and degradability No information available.
Component Information
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide (162881-26-7)
Method Exposure time Value Results
OECD Test No. 301B: Ready
Biodegradability: CO2 Evolution Test
(TG 301 B)
28 days Biodegradation 1% Not readily biodegradable

Bioaccumulation There is no data for this product.
Component Information
Chemical name Partition coefficient
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
162881-26-7
5.8
Other adverse effects No information available.
13. Disposal considerations
Waste treatment methods
Waste from residues/unused
products
Dispose of in accordance with local regulations. Dispose of waste in accordance with
environmental legislation.
Contaminated packaging Do not reuse empty containers.
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14. Transport information
DOT Not regulated
TDG Not regulated
MEX Not regulated
ICAO (air) Not regulated
IATA Not regulated
IMDG Not regulated
RID Not regulated
15. Regulatory information
International Inventories
*Contact supplier for details. One or more substances in this product are either not listed on the US TSCA inventory, listed on the
confidential US TSCA inventory or are otherwise exempted from inventory listing requirements
Chemical name AICS DSL NDSL EINECS ELINCS ENCS IECSC KECL NZIoC PICCS TCSI TSCA
phenyl
bis(2,4,6-trimeth
ylbenzoyl)-phosp
hine oxide
162881-26-7
X X – – X X X X X X X X
Please note that the presence of a substance on an Inventory is not an indication that the substance can be supplied to that
country. Additional registration (REACH, K-REACH, …) might be required.
Legend:
X – Listed
CBI – Confidential Business Information
EU-LVE – Low Volume exemption < 1T LCP - Low concern polymer PMN - indicates a commenced PMN substance S - indicates a substance that is identified in a final Significant New Use Rule US-LVE - Low volume exemption < 10 T annually of the active substance US-PE - Polymer Exemption AICS - Australian Inventory of Chemical Substances DSL/NDSL - Canadian Domestic Substances List/Non-Domestic Substances List EINECS/ELINCS - European Inventory of Existing Chemical Substances/European List of Notified Chemical Substances ENCS - Japan Existing and New Chemical Substances IECSC - China Inventory of Existing Chemical Substances KECL - Korean Existing and Evaluated Chemical Substances NZIoC - New Zealand Inventory of Chemicals PICCS - Philippines Inventory of Chemicals and Chemical Substances TCSI - Taiwan Chemical Substance Inventory TSCA - Toxic Substances Control Act Frank R. Lautenberg Chemical Safety for the 21st Century Act (active rule) US Federal Regulations _____________________________________________________________________________________________ Page 8 / 10 _____________________________________________________________________________________________ OR819 - Omnirad 819 Revision date 29-Jan-2021 SARA 313 Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA). This product does not contain any chemicals which are subject to the reporting requirements of the Act and Title 40 of the Code of Federal Regulations, Part 372. SARA 311/312 Hazard Categories Should this product meet EPCRA 311/312 Tier reporting criteria at 40 CFR 370, refer to Section 2 of this SDS for appropriate classifications. CWA (Clean Water Act) This product does not contain any substances regulated as pollutants pursuant to the Clean Water Act (40 CFR 122.21 and 40 CFR 122.42). CERCLA This material, as supplied, does not contain any substances regulated as hazardous substances under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) (40 CFR 302) or the Superfund Amendments and Reauthorization Act (SARA) (40 CFR 355). There may be specific reporting requirements at the local, regional, or state level pertaining to releases of this material. US State Regulations California Proposition 65 This product does not contain any Proposition 65 chemicals. U.S. State Right-to-Know Regulations Chemical name New Jersey Massachusetts Pennsylvania n-Heptane 142-82-5 X X X U.S. EPA Label Information EPA Pesticide Registration Number Not applicable 16. Other information Key or legend to abbreviations and acronyms used in the safety data sheet Legend Section 8: EXPOSURE CONTROLS/PERSONAL PROTECTION Key literature references and sources for data used to compile the SDS Agency for Toxic Substances and Disease Registry (ATSDR) U.S. Environmental Protection Agency ChemView Database European Food Safety Authority (EFSA) EPA (Environmental Protection Agency) Acute Exposure Guideline Level(s) (AEGL(s)) U.S. Environmental Protection Agency Federal Insecticide, Fungicide, and Rodenticide Act U.S. Environmental Protection Agency High Production Volume Chemicals Food Research Journal Hazardous Substance Database International Uniform Chemical Information Database (IUCLID) Japan GHS Classification Australia National Industrial Chemicals Notification and Assessment Scheme (NICNAS) NIOSH (National Institute for Occupational Safety and Health) National Library of Medicine's ChemID Plus (NLM CIP) National Library of Medicine's PubMed database (NLM PUBMED) TWA TWA (time-weighted average) STEL STEL (Short Term Exposure Limit) Ceiling Maximum limit value * Skin designation _____________________________________________________________________________________________ Page 9 / 10 _____________________________________________________________________________________________ OR819 - Omnirad 819 Revision date 29-Jan-2021 National Toxicology Program (NTP) New Zealand's Chemical Classification and Information Database (CCID) Organization for Economic Co-operation and Development Environment, Health, and Safety Publications Organization for Economic Co-operation and Development High Production Volume Chemicals Program Organization for Economic Co-operation and Development Screening Information Data Set World Health Organization Issuing Date 21-Sep-2020 Revision date 29-Jan-2021 Revision Note No information available. 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 _____________________________________________________________________________________________ Page 10 / 10