International Chemical Safety Cards STRONTIUM ICSC: 1534 Sr Atomic mass: 87.6 (powder) ICSC #    1534 CAS #     7440-24-6 RTECS # WK7700000 October 28, 2004 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible but forms flammable gas on contact with water or damp air. NO contact with water. NO water. Dry sand, special powder. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Ventilation. Fresh air, rest.  •SKIN Protective gloves. Rinse skin with plenty of water or shower.  •EYES Safety spectacles.  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into sealable containers. Do NOT let this chemical enter the environment. Personal protection: P1 filter respirator for inert particles. Dry. Keep under inert gas. Well closed. Keep in a well-ventilated room. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1534 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 ICSC: 1534 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: SILVERY, WHITE SOLID IN VARIOUS FORMS PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts with water forming flammable/explosive gas (hydrogen - see ICSC0001). OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: IIb, value not established but data is available; (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol. INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 1384°C Melting point: 757°C Density: 2.64 g/cm³ Solubility in water: reaction ENVIRONMENTAL DATA Bioaccumulation of this chemical may occur along the food chain. N O T E S Reacts violently with fire extinguishing agents such as water. The recommendations on this Card DO NOT APPLY to radioactive strontium. ADDITIONAL INFORMATION ICSC: 1534 STRONTIUM (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.