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THALLIUM SULFATE
ICSC: 0336
Peer-Review Status: 12.04.2013 Validated
Thallium (I) sulfate
Dithallium sulfate
Thallous sulfate 
CAS #: 7446-18-6 RTECS #: XG6800000
UN #: 1707
EC #: 081-003-00-4
EINECS #: 231-201-3
    Formula: Tl2SO4
Molecular mass: 504.8

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 Cough. Sore throat. See Ingestion.  Use closed system or breathing protection.  Refer for medical attention. 
Skin 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.  Wear 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 refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting. Diarrhoea. Headache. Weakness. Convulsions. Muscle pain. Paralysis. Delirium. Unconsciousness. See Notes.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give one or two glasses of water to drink. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance and complete protective clothing. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant. 
EC 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 
GHS Classification
Signal: Danger
Fatal if swallowed
Toxic in contact with skin
Causes skin and eye irritation
Causes damage to organs
Causes damage to the nervous system through prolonged or repeated exposure
Very toxic to aquatic life with long lasting effects 
skull;toxiccancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
  Provision to contain effluent from fire extinguishing. Store only in original container. Well closed. Separated from strong oxidants and food and feedstuffs. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
WHITE OR COLOURLESS CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes including thallium and sulfur oxides. Reacts with strong oxidants. 

Occupational exposure limits
TLV (as Tl): 0.02mg/m³ as TWA; (skin); (ACGIH 2012).
MAK (2b (not established but data is available)): (DFG 2012).
EU OEL ( selected): SCOEL recommendation available. 

Routes of exposure
The substance can be absorbed into the body through the skin and by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and possibly the respiratory tract. The substance may cause effects on the gastrointestinal tract, central nervous system and peripheral nervous system. Exposure could cause hair loss. Ingestion of large amounts could cause effects on the cardiovascular system, kidneys and liver. Ingestion of large amounts could cause death. The effects may be delayed. Medical observation is indicated. See Notes. 

Effects of long-term or repeated exposure
The substance may have effects on the nervous system. May cause hair loss. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 632°C
Density: 6.77 g/cm³
Solubility in water, g/100ml at 20°C: 4.87 (moderate) 
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
The symptoms of neurological disorders do not become manifest until after a few days.
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home.
See also ICSC 0077, 1221. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations