International Chemical Safety Cards INDIUM ICSC: 1293 In Atomic mass: 114.82 ICSC #    1293 CAS #     7440-74-6 RTECS # NL1050000 March 14, 2001 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. If powder: NO open flames, NO sparks, and NO smoking. In case of fire in the surroundings: all extinguishing agents allowed. 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. Shortness of breath. Sore throat. Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •EYES Redness. Pain. Safety spectacles, 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 Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Remove all ignition sources , if powder. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P3 filter respirator for toxic particles.) Separated from food and feedstuffs , strong oxidants, strong acids, and other incompatible materials . See Chemical Dangers. Well closed. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1293 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 INDIUM ICSC: 1293 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: SILVER-WHITE METAL OR BLACK POWDER . PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. CHEMICAL DANGERS: Reacts with strong acids , strong oxidants and sulfur causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.1 mg/m3 (ACGIH 2000). OSHA PEL: none NIOSH REL*: TWA 0.1 mg/m3 *Note: The REL also applies to other indium compounds (as In). 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. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the kidneys , resulting in kidney impairment . PHYSICAL PROPERTIES Boiling point: 2000°C Melting point: 156.6°C Density: 7.3 g/cm3 Solubility in water: none ENVIRONMENTAL DATA N O T E S Environmental effects from the substance have not been investigated. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. ADDITIONAL INFORMATION ICSC: 1293 INDIUM (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.