Cerium-142 SDS (Ce-142 / 142Ce) — Cerium Oxide, Enriched Cerium Oxide

Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Section 1: Identification of the Substance/Mixture and of the Company/Undertaking

Product Identifier: Identification as on the label/Trade name: Cerium Oxide, Enriched Cerium Oxide. Molecular weight: 172.115 Chemical formula: CeO2 Synonyms: Ceria, Ceric dioxide, Ceric oxide, Cerium dioxide, Cerium (4+) oxide, Molycomp 5310, Needlal, Needlal U15, Needlal W15, Needlal W10-01, Nidoral, Opaline.

Details of the supplier of the Safety Data Sheet: Neonest AB Storgatan 70C, Solna SE-17152 Sweden

Contact details: +46-76-219-9731

24-hour Emergency Contact: Swedish Poisons Centre Phone: 112 - Ask for Poisons Information, 112 – begär Giftinformation.

Other International Contacts: CHEMTREC 24-hour: +1-703-741-5500 (US + Worldwide) NHS: 111 (UK) Charite: +49 30 450 531 000 (Netherlands) INTCF: +34 917689800 (Spain) CapTv: +33 1 40 05 48 48 (France)

Section 2: Hazards Identification

Classification of the substances or mixture: The mixture is classified according to: Regulation EC 1272/2008 [EU-GHS/CLP]

Hazard classes/Hazard categories: Hazard statement: Not classified as hazardous. None required.

Label elements: Hazard pictograms: Not required. Signal Words: Not required. Hazard Statements: Not required. Precautionary Statements: None. Other hazards: None known.

Safety Data Sheet (SDS) for Cerium Oxide, Enriched Cerium Oxide https://www.buyisotope.com Page 1/9

Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Section 3: Composition/Information on Ingredients

Substance/Mixture: Substance. Ingredients: CAS-No. Molecular Concentration Classification Substance name (IUPAC/EC) EC-No. weight % by weight EC1272/2008 1306-38-3 Cerium dioxide 172.115 >99% Not Classified. 215-150-4

For explanation of abbreviations see Section 16.

Section 4: First-Aid Measures

Description of first aid measures: In case of inhalation: Remove to fresh air. Get medical attention for any breathing difficulty. In case of skin contact: In case of contact, immediately wash skin with soap and copious amounts of water. In case of eye contact: In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician. In case of ingestion: If swallowed, wash out mouth with water, provided person is conscious. Call a physician.

Most important symptoms and effects, both acute and delayed: Inhalation: May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract. Eyes: May cause eye irritation. Skin contact: May cause skin irritation. Ingestion: May be harmful if swallowed. Indication of any immediate medical attention and special treatment needed: Treat symptomatically. Show this safety data sheet to a physician or emergency room.

Section 5: Fire-Fighting Measures

Extinguisher media: Suitable extinguisher media: Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Unsuitable extinguishing media: None known. Special hazards arising from the mixture: Emits toxic fumes under fire conditions. Advice for fire-fighters: Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. Further information: Standard procedure for chemical fires. Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

Section 6: Accidental Release Measures

Personal precautions, protective equipment and emergency procedures: Personal precautions: Exercise appropriate precautions to minimize direct contact with skin or eyes and prevent inhalation of dust.

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Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Environmental precautions: Prevent product from entering drains. Prevent further leakage or spillage if safe to do so. Local authorities should be advised if significant spillages cannot be contained.

Methods for containment and cleaning up: Methods for cleaning up: Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Reference to other sections: Treat recovered material as described in the section "Disposal considerations".

Section 7: Handling and Storage

Precautions for safe handling: Advice on safe handling: User Exposure: Avoid inhalation. Avoid contact with eyes, skin and clothing. Avoid prolonged or repeated exposure. Hygiene measures: Do not eat, drink or smoke when using this product.

Conditions for safe storage, including incompatibilities: Requirements for storage areas and containers: Store in cool, dry conditions in tightly-sealed containers.

Section 8: Exposure Controls/Personal Protection

Control parameters: Occupational exposure limits: Contains no substances with occupational exposure limit values

Exposure controls: Appropriate engineering controls: Safety shower and eye bath. Mechanical exhaust required.

Individual protection measures, such as personal protective equipment: Eye/face protection: Use safety glasses. If there is a potential for exposure to particles which could cause eye discomfort, wear chemical goggles. Maintain eye wash fountain and quick-drench facilities in work area. Hand protection: Use chemical resistant gloves. Examples of preferred glove barrier materials include: Butyl rubber, Neoprene, Nitrile/butadiene rubber, Polyethylene, Ethyl vinyl alcohol laminate, polyvinyl alcohol, Polyvinyl chloride. Body protection: Not necessary under normal conditions of use. Respiratory protection: Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks.

Section 9: Physical and Chemical Properties

Information on basic physical and chemical properties Appearance (form): Solid (powder). Colour: Light yellow. Odour: No data available. Odour threshold: No data available. Molecular Weight: 172.115

Safety Data Sheet (SDS) for Cerium Oxide, Enriched Cerium Oxide https://www.buyisotope.com Page 3/9

Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

pH (concentration): No data available. Melting point/range (°C): No data available. Boiling point/range (°C): No data available. Freezing point (°C): No data available. Flash point (°C): No data available. Evaporation rate: No data available. Flammability (solid, gas): No data available. Ignition temperature (°C): No data available. Upper/lower flammability/explosive limits: No data available. Vapour pressure (20 °C): No data available Vapour density: No data available. Relative density (25 °C): 7.13 g/cm3 Water solubility (g/L) at 20 °C: No data available. n-Octanol/Water partition coefficient: No data available. Auto-ignition temperature: No data available. Decomposition temperature: No data available. Viscosity, dynamic (mPa s): No data available. Explosive properties: The substance or mixture is not classified as explosive. Oxidising properties: The substance or mixture is not classified as oxidizing.

Section 10: Stability and Reactivity

Reactivity: No dangerous reaction known under conditions of normal use. Chemical stability: Stable under normal conditions. Possibility of hazardous reactions: No dangerous reaction known under conditions of normal use. Conditions to avoid: None known. Incompatible materials: Strong oxidizing agents. Hazardous decomposition products: Cerium/Cerium oxides.

Section 11: Toxicological Information

Information on toxicological effects: Acute Toxicity: Oral LD50: Rat, Male and female - > 5,000 mg/kg Inhalation LC50: Rat, Male and female - 4 hours - > 5.05 mg/l Dermal LD50: Rat, Male and female - > 2,000 mg/kg Classification according to GHS (1272/2008/EG, CLP) Skin corrosion/irritation: Skin, Rabbit, No skin irritation - 4 hours - OECD Test Guideline 404. Serious eye damage/eye irritation: Eyes, Rabbit, Mild eye irritation - OECD Test Guideline 405. Respiratory or skin sensitisation: Maximization Test, Guinea pig, did not cause sensitization on laboratory animals - OECD Test Guideline 406. Germ cell mutagenicity: Genotoxicity in vitro, Ames test, S. typhimurium, with and without metabolic activation - Negative. Carcinogenicity:

Safety Data Sheet (SDS) for Cerium Oxide, Enriched Cerium Oxide https://www.buyisotope.com Page 4/9

Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. ACGIH: No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen by ACGIH. NTP: No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen by NTP. OSHA: No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen by OSHA. Reproductive toxicity: Not classified based on available information. Specific target organ toxicity – single exposure (STOT): Not classified based on available information. Specific target organ toxicity (STOT) – repeated exposure: Not classified based on available information. Aspiration toxicity: Not classified based on available information.

Section 12: Ecological Information

Toxicity: Toxicity to Fish: Semi-static test EC50 - Danio rerio > 200 mg/l, 72 hours. Toxicity to Daphnia and other Aquatic Invertebrates: Immobilization EC50 - Daphnia magna, > 1,000 mg/l, 48 hours. Method: OECD Test Guideline 202 Toxicity to Bacteria: EC50 - Sludge Treatment, > 1,000 mg/l, 3 hours. Persistence and degradability: No data available. Bioaccumulative potential: No data available. Mobility in soil: No data available. Results of PBT& vPvB assessment: Not relevant. Other adverse effects: No data available.

Section 13: Disposal Considerations

Waste treatment methods: Contact a licensed professional waste disposal service to dispose of this material. Observe all federal, state and local environmental regulations. Catalysts and expensive metals should be recovered for reuse or recycling.

Section 14: Transport Information

UN number: Not regulated as a dangerous good. UN proper shipping name: Not regulated as a dangerous good. Transport hazard class(es): Not regulated as a dangerous good. Packing group: Not regulated as a dangerous good. Environmental hazards: Not regulated as a dangerous good. Special precautions for user: Not dangerous goods in the meaning of ADR/RID, ADN, IMDG-Code, ICAO/IATA-DGR. Transport in bulk according to Annex II of Marpol and the IBC Code: Not applicable.

Safety Data Sheet (SDS) for Cerium Oxide, Enriched Cerium Oxide https://www.buyisotope.com Page 5/9

Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Section 15: Regulatory Information

EU regulations: Regulation (EC) No. 1005/2009 on substances that deplete the ozone layer, Annex I and II, as amended Not listed. Regulation (EC) No. 850/2004 on persistent organic pollutants, Annex I Not listed. Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 1 as amended Not listed. Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 2 as amended Not listed. Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex I, Part 3 as amended Not listed. Regulation (EU) No. 649/2012 concerning the export and import of dangerous chemicals, Annex V as amended Not listed. Regulation (EC) No. 166/2006 Annex II Pollutant Release and Transfer Registry Not listed. Regulation (EC) No. 1907/2006, REACH Article 59(10) Candidate List as currently published by ECHA Not listed.

Authorisations: Regulation (EC) No. 1907/2006, REACH Annex XIV Substances subject to authorization, as amended Not listed.

Restrictions on use: Regulation (EC) No. 1907/2006 Annex XVII Substances subject to restriction on marketing and use Not regulated. Regulation (EC) No. 1907/2006, REACH Annex XVII Substances subject to restriction on marketing and use as amended Not listed. Directive 2004/37/EC on the protection of workers from the risks related to exposure to carcinogens and mutagens at work Not regulated. Directive 92/85/EEC: on the safety and health of pregnant workers and workers who have recently given birth or are breastfeeding. Not regulated.

Other EU regulations: Directive 2012/18/EU on major accident hazards involving dangerous substances Not listed. Directive 98/24/EC on the protection of the health and safety of workers from the risks related to chemical agents at work. Always applicable. Directive 94/33/EC on the protection of young people at work

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Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Not listed.

Other regulations: The product is classified and labelled in accordance with EC directives or respective national laws. This Safety Data Sheet complies with the requirements of Regulation (EC) No 1907/2006, as amended. EU Additional Classification: S: 22-24/25 Safety Statements: Do not breathe dust. Avoid contact with skin and eyes. US Classification and Label Text: US Statements: Caution: Avoid contact and inhalation. Target organ(s): Blood. United States Regulatory Information: SARA Listed: No TSCA Inventory Item: Yes Canada Regulatory Information: WHMIS Classification: This product has been classified in accordance with the hazard criteria of the CPR, and the SDS contains all the information required by the CPR. DSL: Yes NDSL: No National regulations: Follow national regulation for work with chemical agents. Chemical safety assessment: No Chemical Safety Assessment has been carried out.

Section 16: Other Information

List of abbreviations: ACGIH American Conference of Governmental Industrial Hygienists ADR European Agreement Concerning the International Carriage of Dangerous Goods by Road ALARA As Low As Is Reasonably Achievable AMU Atomic Mass Unit ANSI American National Standards Institute BLS Basic Life Support CAM Continuous Air Monitor CAS Chemical Abstracts Service (division of the American Chemical Society) CEN European Committee for Standardization CERCLA Comprehensive Environmental Response Compensation and Liability Act CLP Classification, Labelling and Packaging (European Union) CPR Controlled Products Regulations (Canada) CWA Clean Water Act (USA) DAC Derived Air Concentration (USA) DOE United States Department of Energy (USA) DOT United States Department of Transportation (USA) DSL Domestic Substances List (Canada) EC50 Half Maximal Effective Concentration EINECS European Inventory of Existing Commercial Chemical Substances EHS Environmentally Hazardous Substance ELINCS European List of Notified Chemical Substances EMS Emergency Response Procedures for Ships Carrying Dangerous Goods EPA Environmental Protection Agency (USA) EPCRA Emergency Planning and Community Right-To-Know Act (EPCRA) of 1986

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Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

GHS Globally Harmonized System HMIS Hazardous Materials Identification System (USA) IARC International Agency for Research on Cancer IATA International Air Transport Association IBC Intermediate Bulk Containers ICAO International Civil Aviation Organization IDLH Immediately Dangerous to Life or Health IMDG International Maritime Code for Dangerous Goods LC50 Lethal concentration, 50 percent LD50 Lethal dose, 50 percent LDLO Lethal Dose Low LOEC Lowest-Observed-Effective Concentration MARPOL International Convention for the Prevention of Pollution from Ships MSHA Mine Safety and Health Administration (USA) NCRP National Council on Radiation Protection & Measurements (USA) NDSL Non-Domestic Substances List (Canada) NFPA National Fire Protection Association (USA) NIOSH National Institute for Occupational Safety and Health (USA) NOEC No Observed Effect Concentration N.O.S. Not Otherwise Specified NRC Nuclear Regulatory Commission (USA) NTP National Toxicology Program (USA) OSHA Occupational Safety and Health Administration (USA) PBT Persistent Bioaccumulative and Toxic Chemical PEL Permissible Exposure Limit PIH Poisonous by Inhalation Hazard RCRA Resource Conservation and Recovery Act (USA) RCT Radiation Control Technician REACH Registration, Evaluation, Authorisation and Restriction of Chemicals (Europe) RID Regulations Concerning the International Transport of Dangerous Goods by Rail RTECS Registry of Toxic Effects of Chemical Substances SARA Superfund Amendments and Reauthorization Act (USA) TDG Transportation of Dangerous Goods (Canada) TIH Toxic by Inhalation Hazard TLV Threshold Limit Value TPQ Threshold Planning Quantity TSCA Toxic Substances Control Act TWA Time Weighted Average UN United Nations (Number) VOC Volatile Organic Compound vPvB Very Persistent Very Bioaccumulative Chemical WGK Wassergefährdungsklassen (Germany: Water Hazard Classes) WHMIS Workplace Hazardous Materials Information System References: Not available. Full text of any H-statements not written out in full under Sections 2 to 15: None.

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Safety Data Sheet for Cerium Oxide, Enriched Cerium Oxide According to ISO 11014:2010

First Print Date: 5-Mar-2015 Revision Date: 11-Aug-2019 Version: 1.1.1.

Revision information: None. Training information: Follow training instructions when handling this material. Further Information: 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.

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