International Chemical Safety Cards SODIUM FLUORIDE ICSC: 0951 Natrium fluoride Sodium monofluoride NaF Molecular mass: 42.0 ICSC #    0951 CAS #     7681-49-4 RTECS # WB0350000 UN #        1690 EC #         009-004-00-7 November 25, 2003 Peer reviewe 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. NO open flames. NO contact with hot surfaces. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE  •INHALATION Cough. Sore throat. Ventilation (not if powder), local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •SKIN Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower. 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. Burning sensation. Convulsions. Drowsiness. Cough. Diarrhoea. Sore throat. Vomiting. Unconsciousness. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into covered containers. Carefully collect remainder, then remove to safe place. (Extra personal protection: P2 filter respirator for harmful particles.) Separated from acids, food and feedstuffs . Do not transport with food and feedstuffs. T symbol R: 25-32-36/38 S: 1/2-22-36-45 UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0951 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 FLUORIDE ICSC: 0951 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE CRYSTALS OR POWDER PHYSICAL DANGERS: CHEMICAL DANGERS: On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes . Reacts with acids to produce toxic and corrosive fumes . OCCUPATIONAL EXPOSURE LIMITS: TLV: (as fluoride) 2.5 mg/m³ as TWA; A4; (ACGIH 2003). EU OEL: (as fluoride) 2.5 mg/m³ as TWA; (EU 2002). OSHA PEL*: TWA 2.5 mg/m3 *Note: The PEL also applies to other inorganic, solid fluorides (as F). NIOSH REL: TWA 2.5 mg/m3 *Note: The REL also applies to other inorganic, solid fluorides (as F). NIOSH IDLH: 250 mg/m3 (as F) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes , the skin and the respiratory tract . Exposure when ingested could cause hypocalcaemia and hypokalaemia , resulting in central nervous system and cardiac disorders . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the bones and teeth (fluorosis). PHYSICAL PROPERTIES Boiling point: 1700°C Melting point: 993°C Density: 2.8 g/cm3 Solubility in water, g/100 ml at 20°C: 4.0 ENVIRONMENTAL DATA N O T E S Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Transport Emergency Card: TEC (R)-61S1690 NFPA Code: H3; F0; R0; ADDITIONAL INFORMATION ICSC: 0951 SODIUM FLUORIDE (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.