International Chemical Safety Cards TIN(IV) OXIDE ICSC: 0954 Stannic oxide Stannic anhydride Tin dioxide SnO2 Molecular mass: 150.7 ICSC #    0954 CAS #     18282-10-5 RTECS # XQ4000000 October 28, 2004 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION 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 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 containers; if appropriate, moisten first to prevent dusting. Personal protection: P2 filter respirator for harmful particles. Separated from strong reducing agents . R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0954 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 TIN(IV) OXIDE ICSC: 0954 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE OR SLIGHTLY GREY POWDER PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts violently with strong reducing agents . OCCUPATIONAL EXPOSURE LIMITS: TLV: (as Sn, oxide and inorganic compounds, except tin hydride) 2 mg/m³ as TWA; (ACGIH 2004). EU OEL: (Tin inorganic compounds, as Sn) 2 mg/m³ as TWA; (EU 2004). OSHA PEL: none NIOSH REL: TWA 2 mg/m3 NIOSH IDLH: No data ROUTES OF EXPOSURE: INHALATION RISK: A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: May cause mechanical irritation to the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Lungs may be affected by repeated or prolonged exposure to dust particles, resulting in a benign pneumoconiosis (stannosis). PHYSICAL PROPERTIES Sublimation point: 1800-1900°C Melting point: 1630°C Density: 6.95 g/cm³ Solubility in water: none ENVIRONMENTAL DATA Bioaccumulation of this chemical may occur in crustacea. N O T E S ADDITIONAL INFORMATION ICSC: 0954 TIN(IV) OXIDE (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.