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THALLIUM ICSC: 0077
Date of peer-review: March 2002

Ramor
Thallium (metal)
CAS # 7440-28-0 Tl
RTECS # XG3425000 Atomic mass: 204.4
UN # 3288
EC # 081-001-00-3
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 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.)
Do not transport with food and feedstuffs.
EU Classification
Symbol: T+
R: 26/28-33-53
S: (1/2-)13-28-45-61
UN Classification
UN Hazard Class: 6.1
UN Pack Group: I
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61GT5-I
Separated from strong acids, fluorine, other halogens, food and feedstuffs.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK


THALLIUM ICSC: 0077
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
BLUISH-WHITE, VERY SOFT METAL. TURNS GREY ON EXPOSURE TO AIR.

CHEMICAL DANGERS:
Reacts with strong acids. Reacts with fluorine and other halogens at room temperature.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 mg/m as TWA (skin) (ACGIH 2001).
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 20C 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: 1457C
Melting point: 304C
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.
NOTES
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).
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999

See Also:
        Thallium (EHC 182, 1996)
        Thallium (PIM 525)