International Chemical Safety Cards SODIUM MOLYBDATE ICSC: 1010 Molybdic acid, disodium salt Disodium molybdate Na2MoO4 Molecular mass: 205.9 ICSC #    1010 CAS #     7631-95-0 RTECS # QA5075000 October 28, 2004 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible under specific conditions. NO open flames. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION Risk of fire and explosion on contact with molten magnesium. EXPOSURE AVOID ALL CONTACT!  •INHALATION Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •EYES Redness. Safety goggles, 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. Nausea. Vomiting. Diarrhoea. Do not eat, drink, or smoke during work. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into covered containers. Personal protection: P2 filter respirator for harmful particles. Separated from strong oxidant, halogens . R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1010 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 SODIUM MOLYBDATE ICSC: 1010 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE POWDER PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumesincluding fumes of sodium oxide. Reacts violently with halogens causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: (as Mo, soluble compounds, respirable fraction) 0.5 mg/m³ as TWA; A3; (ACGIH 2004). MAK: IIb (not established but data is available); (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A harmful concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The aerosol is irritating to the respiratory tract and the eyes . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the respiratory tract. This substance is possibly carcinogenic to humans. PHYSICAL PROPERTIES Melting point: 687°C Density: 3.78 g/cm³ Solubility in water, g/100 ml at 100°C: 84 ENVIRONMENTAL DATA N O T E S Environmental effects from the substance have not been investigated adequately. ADDITIONAL INFORMATION ICSC: 1010 SODIUM MOLYBDATE (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.