Antimony-121 Isotope SDS (Sb-121 / 121Sb) — Antimony, Enriched Antimony

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 1/9

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

Product Identifier: Identification as on the label/Trade name: Antimony. Molecular weight: 121.75 Chemical formula: Sb Synonyms: Antimony Black, Antimony Regulus, Antymon (Polish), C.I. 77050, Stibium. 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: Acute Toxicity, Oral (Category 3) H301 STOT SE (Category 3) H335 Label elements: Hazard pictograms: Signal Words: Danger.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 2/9 Hazard Statements: H301 Toxic if swallowed. H335 May cause respiratory irritation. Precautionary Statements: P264 Wash hands thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor. P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P312 Call a POISON CENTER/doctor if you feel unwell. P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P501 Dispose of contents/container in accordance with local and national regulations. Other hazards: None known.

Section 3: Composition/Information on Ingredients

Substance/Mixture: Substance. Ingredients: Substance name (IUPAC/EC) CAS - No. Molecular weight Concentration % by weight Classification EC1272/2008 EC - No. Antimony 7440-36-0 121.75 >98% Acute Tox. 3 H301 STOT SE 3 H335 231-146-5 For explanation of abbreviations see Section 16.

Section 4: First - Aid Measures

Description of first aid measures: In case of inhalation: Move to fresh air. If unconscious, place in recovery position and seek medical advice. If symptoms persist, call a physician. In case of skin contact: If on skin, rinse well with warm water. In case of eye contact: Immediately flush eye(s) with plenty of water. Remove contact lenses. Protect unharmed eye. Keep eye wide open while rinsing. If eye irritation persists, consult a specialist. In case of ingestion: Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Most important symptoms and effects, both acute and delayed: Inhalation: May be irritating to mucous membranes and upper respiratory tract; may be harmful if inhaled. Eyes: May cause eye irritation. Skin contact: May cause skin irritation. Ingestion: May be harmful if swallowed. Sensitization: Prolonged or repeated exposure may cause allergic reactions in certain sensitive individuals.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 3/9 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: Use water spray, alcohol-resistant foam, dry chemical powder or carbon dioxide. Unsuitable extinguishing media: High volume water jet. Special hazards arising from the mixture: Emits toxic fumes during a fire. Advice for fire-fighters: Wear self-contained breathing apparatus for firefighting if necessary. 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: Use personal protective equipment. Wear respirator, chemical safety goggles, rubber boots and heavy rubber gloves. 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 spilled material and store in a suitable container for 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: Do not breathe dust. Avoid contact with eyes and skin. 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: Keep container closed. Keep away from heat, sparks, and open flames.

Section 8: Exposure Controls/ Personal Protection

Control parameters: Occupational exposure limits: Country Source Type Value USA ACGIH TWA 0.5mg/m 3 USA MSHA Standard-air TWA 0.5mg/m 3

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 4/9 USA OSHA PEL 8H TWA 0.5mg (Sb)/m 3 New Zealand OEL USA NIOSH TWA 0.5mg (Sb)/m 3 Poland NDS 0.5mg/m 3 Poland NDSCh 1.5mg/m 3 Poland NDSP - 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. 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: If discomfort is experienced, use an approved air-purifying respirator. Respiratory protection should be worn when there is a potential to exceed the exposure limit requirements or guidelines.

Section 9: Physical and Chemical Properties

Information on basic physical and chemical properties Appearance (form): Powder. Colour: Grey / silver. Odour: Odourless. Odour threshold: No data available. Molecular Weight: 121.75 pH (concentration): No data available. Melting point/range (° C): 630.74 °C Boiling point/range (° C): 1,587 °C 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 densi ty (25 ° C): 6.69 g/cm 3 . 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.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 5/9

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: Exposure to air and moisture. Incompatible materials: Oxidizing agents and acids. Hazardous decomposition products: Antimony/antimony oxides.

Section 11: Toxicological Information

Information on toxicological effects: Oral toxicity, Rat 7,000mg/kg, LD 50 . Classification according to GHS (1272/2008/EG, CLP) Skin corrosion/irritation: Not classified based on available information. Serious eye damage/eye irritation: Not classified based on available information. Respiratory or skin sensitisation: Not classified based on available information. Germ cell mutagenicity: Not classified based on available information. Carcinogenicity: Not classified based on available information. Reproductive toxicity: Not classified based on available information. Specific target organ toxicity – single exposure (STOT): May cause respiratory irritation. 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: LC 50 fish, species Cyprinodon variegatus , 96 hours, 6.2-8.3 mg/ml. 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. EU additional classification: Symbol of danger: N Indication of danger: Dangerous for the environment. R: 51/53. Risk Statements: Toxic to aquatic organisms; may cause long-term adverse effects in the aquatic environment.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 6/9 S: 60. Safety Statements: This material and its container must be disposed of as hazardous waste.

Section 13: Disposal Considerations

Waste treatment methods: Contact a licenced professional waste disposal service to dispose of this material. Observe all local and national environmental regulations.

Section 14: Transport Information

DOT: Proper Shipping Name: ANTIMONY POWDER. Hazard Class : 6.1 UN Number: 2871 Packing Group: III Hazard Label: IATA: Proper Shipping Name: ANTIMONY POWDER. Hazard Class : 6.1 UN Number: 2871 Packing Group: III

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.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 7/9 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 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. United States Regulatory Information: SARA Listed: Yes De Minimis: 1% Notes: This product is subject to SARA section 313 for reporting requirements. TSCA Inventory Item: Yes US State Regulations: California Proposition 65: No 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.

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 8/9

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 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

Safety Data Sheet for Antimony, Enriched Antimony According to ISO 11014:2010 First Print Date: 5-Mar-2015 Revision Date: 8-Aug-2019 Version: 1.1.1. Safety Data Sheet (SDS) for Antimony, Enriched Antimony https://www.buyisotope.com Page 9/9 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: H301 Toxic if swallowed. H335 May cause respiratory irritation. 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.