International Chemical Safety Cards CALCIUM ARSENATE ICSC: 0765 CALCIUM ARSENATE Tricalcium arsenate Calcium ortho-arsenate Arsenic acid, calcium salt As2Ca3O8/Ca3(AsO4)2 Molecular mass: 398.1 CAS # 7778-44-1 RTECS # CG0830000 ICSC # 0765 UN # 1573 EC # 033-005-00-1 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! INHALATION Cough. Headache. Laboured breathing. Weakness (see Ingestion). Closed system and ventilation. Fresh air, rest. Refer for medical attention. SKIN MAY BE ABSORBED! Redness. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention. EYES Redness. Pain. Face shield, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. INGESTION Abdominal pain. Diarrhoea. Vomiting. Burning sensation behind breastbone and in the mouth. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Do NOT wash away into sewer. Vacuum spilled material. Carefully collect remainder, then remove to safe place (extra personal protection: P3 filter respirator for toxic particles). Separated from acids, food and feedstuffs. Cool. Well closed. Keep in a well-ventilated room. Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. T symbol R: 45-23/25 S: 53-45 Note: A; Note: E UN Hazard Class: 6.1 UN Packing Group: II Marine pollutant. SEE IMPORTANT INFORMATION ON BACK ICSC: 0765 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

International Chemical Safety Cards CALCIUM ARSENATE ICSC: 0765 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: ODOURLESS COLOURLESS AMORPHOUS POWDER. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes of arsenic (see ICSC # 0013). Reacts with acids releasing toxic arsine gas (see ICSC # 0222). OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV (as As): ppm; 0.2 mg/m3 (ACGIH 1991-1992). OSHA PEL: 1910.1018 TWA 0.010 mg/m3 NIOSH REL: Ca C 0.002 mg/m3 15-minute See Appendix A NIOSH IDLH: Potential occupational carcinogen 5 mg/m3 (as As) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly by dispersing. EFFECTS OF SHORT-TERM EXPOSURE: The substance and the aerosol irritate the eyes, the skin and the respiratory tract. The substance may cause effects on the central nervous system, digestive tract, circulatory system , resulting in severe haemorrhagic, losses of fluids and electrolytes, collapse, shock and death. Exposure at low level may result in death. The effects may be delayed. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the peripheral nervous system, skin, mucous membranes, and liver , resulting in neuropathy, pigmentation disorders, perforation of nasal septum and cirrhosis. This substance is carcinogenic to humans. PHYSICAL PROPERTIES Melting point: 1455°C Relative density (water = 1): 3.62 Solubility in water: none ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to water, organisms of water and soil. It is strongly advised not to let the chemical enter into the environment because it persists in the environment. N O T E S Temperature of decomposition unknown in literature. Do NOT take working clothes home. ADDITIONAL INFORMATION ICSC: 0765 CALCIUM ARSENATE © IPCS, CEC, 1993

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.