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THALLIUM SULFATE ICSC: 0336
Date of Peer Review: April 2000

Thallium (I) sulfate
Dithallium sulfate
Thallous sulfate
CAS # 7446-18-6 Tl2SO4
RTECS # XG6800000 Molecular mass: 504.8
UN # 1707
EC Index # 081-003-00-4
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.

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).
Closed system and ventilation.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin MAY BE ABSORBED! Redness. (See Ingestion.)
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain.
Safety goggles, face shield 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. Convulsions. Diarrhoea. Headache. Nausea. Vomiting. Weakness. Delirium. Irregular heart beat. Coma (see Notes).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: complete protective clothing including self-contained breathing apparatus.
Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
Symbol: T+, N
R: 28-38-48/25-51/53
S: (1/2-)-13-36/37-45-61
UN Classification
UN Hazard Class: 6.1
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61GT5-III
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed.
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 2005

SEE IMPORTANT INFORMATION ON BACK
THALLIUM SULFATE ICSC: 0336
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
ODOURLESS WHITEOR COLOURLESS CRYSTALS.

CHEMICAL DANGERS:
The substance decomposes on heating producing highly toxic fumes including thallium and sulfur oxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 mg/m as TWA; (skin); (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
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.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes and the skin. The substance may cause effects on the nervous system, cardiovascular system and gastrointestinal tract. Exposure may result in hair loss. The effects may be delayed (see Notes). Medical observation is indicated. Exposure may result in death.

PHYSICAL PROPERTIES
Melting point: 632C
Density: 6.77 g/cm
Solubility in water, g/100 ml at 20C: 4.87
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
NOTES
Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of acute intoxication do not become manifest until up to several days have passed. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Do NOT take working clothes home. Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
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 2005