International Chemical Safety Cards STRONTIUM CARBONATE ICSC: 1695 Strontianite Carbonic acid, strontium salt (11) SrCO3 Molecular mass: 147.6 ICSC #    1695 CAS #     1633-05-2 RTECS # WK8305000 April 20, 2007 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: all extinguishing agents allowed EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Cough. Avoid inhalation of dust. Fresh air, rest.  •SKIN Protective gloves. Rinse and then wash skin with water and soap.  •EYES Redness. Safety goggles Rinse with plenty of water (remove contact lenses if easily possible).  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. Give one or two glasses of water to drink. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: particulate filter adapted to the airborne concentration of the substance. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Separated from acids. SEE IMPORTANT INFORMATION ON BACK ICSC: 1695 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards STRONTIUM CARBONATE ICSC: 1695 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE ODOURLESS POWDER . PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts with acids . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: IIb (not established but data is available) (DFG 2006). ROUTES OF EXPOSURE: LD0 in rats = 2.37g/kg, however INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly. EFFECTS OF SHORT-TERM EXPOSURE: May cause mechanical irritation the eyes and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: See Notes. PHYSICAL PROPERTIES Decomposes at >1200 °C Density: 3.5 g/cm³ Solubility in water, g/100 ml at 18°C: 0.011 (very poor) ENVIRONMENTAL DATA N O T E S Strontium ion has effects on the calcium content of the bones and teeth, but data concerning harmful doses of strontium carbonate are inadequate. Strontium carbonate occurs naturally in the environment as strontianite. The physico-chemical properties and its natural occurence as strotianite in the environment indicate also the SrCO3 is stable and rather inert in its solid form. It can be expected that it is persistent and distributes mainly to the soil compartment. ADDITIONAL INFORMATION ICSC: 1695 STRONTIUM CARBONATE (C) IPCS, CEC, 1994

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 NIOSH IDLH values.