International Chemical Safety Cards THALLIUM ICSC: 0077 Ramor Thallium (metal) Tl Atomic mass: 204.4 ICSC #    0077 CAS #     7440-28-0 RTECS # XG3425000 UN #        3288 EC #         081-001-00-3 March 04, 2002 Peer reviewe TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST! STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!  •INHALATION See Ingestion. Local exhaust or breathing protection. Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.  •SKIN MAY BE ABSORBED! See Ingestion. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Safety goggles, or eye protection in combination with breathing protection. 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. Headache. Weakness. Pain in the legs. Blurred vision. Loss of hair. Restlessness. Convulsions. Rapid heart beat. See Notes. Do not eat, drink, or smoke during work. Wash hands before eating. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give a slurry of activated charcoal in water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into sealable containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P3 filter respirator for toxic particles.) Separated from strong acids, fluorine, other halogens , food and feedstuffs . Do not transport with food and feedstuffs. T+ symbol R: 26/28-33-53 S: 1/2-13-28-45-61 UN Hazard Class: 6.1 UN Packing Group: I SEE IMPORTANT INFORMATION ON BACK ICSC: 0077 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 THALLIUM ICSC: 0077 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: BLUISH-WHITE, VERY SOFT METAL. TURNS GREY ON EXPOSURE TO AIR. PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts with strong acids. Reacts with fluorine and other halogens at room temperature. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.1 mg/m³ as TWA (skin) (ACGIH 2001). OSHA PEL: TWA 0.1 mg/m3 skin NIOSH REL: TWA 0.1 mg/m3 skin NIOSH IDLH: 15 mg/m3 (as Tl) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: The substance may cause effects on the gastrointestinal tract , nervous system , kidneys and cardiovascular system. May cause hair loss and atrophy of nails. Exposure may result in death when ingested . The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the cardiovascular system , nervous system and may cause hair loss. Animal tests show that this substance possibly causes toxicity to human reproduction or development. PHYSICAL PROPERTIES Boiling point: 1457°C Melting point: 304°C Relative density (water = 1): 11.9 Solubility in water: none ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain, for example in freshwater organisms. This substance may be hazardous to the environment; special attention should be given to birds and mammals. It is strongly advised that this substance does not enter the environment. The substance may cause long-term effects in the aquatic environment. N O T E S Symptoms of acute thallium intoxication usually develop slowly; gastrointestinal symptoms (nausea, vomiting, abdominal pain) appear usually within few hours after exposure but neurological disorders and other symptoms may show after 2-5 days. Depending on the degree of exposure, periodic medical examination is indicated. Do NOT take working clothes home. See ICSC 0336 (Thallium sulfate), 1221 (Thallium carbonate). Transport Emergency Card: TEC (R)-61GT5-I ADDITIONAL INFORMATION ICSC: 0077 THALLIUM (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.