International Chemical Safety Cards MAGNESIUM (PELLETS) ICSC: 0701 Magnesium turnings Mg Atomic mass: 24.3 ICSC #    0701 CAS #     7439-95-4 RTECS # OM2100000 UN #        1869 EC #         012-002-00-9 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Highly flammable in powder form. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. NO contact with moisture or acid. Dry sand. Special powder. NO hydrous agents. NO water. EXPLOSION Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Cough. Local exhaust or breathing protection. Fresh air, rest.  •SKIN Protective gloves. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into container. Do NOT wash away into sewer. Carefully collect remainder, then remove to safe place (extra personal protection: P2 filter respirator for harmful particles). Fireproof. Separated from strong oxidants, acids, carbonates, halogens. Dry. Airtight. F symbol R: 11-15 S: 2-7/8-43 UN Hazard Class: 4.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0701 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1998. 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 MAGNESIUM (PELLETS) ICSC: 0701 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: SILVERY-WHITE METALLIC SOLID IN VARIOUS FORMS. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance may spontaneously ignite on contact with air if finely divided or on heating. Upon heating, toxic fumes are formed. The substance is a strong reducing agent and reacts violently with oxidants and many other substances causing fire and explosion hazards. Reacts with moisture or acids, evolving combustible gas (Hydrogen - see ICSC # 0001), causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by ingestion. INHALATION RISK: EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 1100°C Melting point: 649°C Relative density (water = 1): 1.74 Solubility in water: reacts ENVIRONMENTAL DATA N O T E S Magnesium burns with an intense flame. Avoid direct viewing of magnesium fires. Reacts violently with fire extinguishing agents such as water, powder, carbon dioxide and halons. NFPA Code: H0; F1; R1; ADDITIONAL INFORMATION ICSC: 0701 MAGNESIUM (PELLETS) (C) IPCS, CEC, 1998

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.