Thallium (I) sulfate
Dithallium sulfate
Thallous sulfate
Tl2SO4
Molecular mass: 504.8
ICSC # 0336
CAS # 7446-18-6
RTECS # XG6800000
UN # 1707
EC # 081-003-00-4
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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(See Ingestion).
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Closed system and ventilation.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
(See Ingestion.)
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles
,
face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Convulsions.
Diarrhoea.
Headache.
Nausea.
Vomiting.
Weakness.
Delirium. Irregular heart beat. Coma (see Notes).
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Provision to contain effluent from fire extinguishing.
Separated from
food and feedstuffs
.
Well closed.
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Unbreakable packaging; put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant.
T+ symbol
N symbol
R: 28-38-48/25-51/53
S: 1/2-13-36/37-45-61
UN Hazard Class: 6.1
UN Packing Group: II
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Important Data
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Physical State; Appearance:
ODOURLESS
WHITE
OR
COLOURLESS
CRYSTALS.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing highly toxic fumes including thallium and
sulfur oxides
.
Occupational Exposure Limits:
TLV: 0.1 mg/m3 as TWA; (skin); (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
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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.
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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point: 632°C
Density: 6.77
g/cm3
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Solubility in water, g/100 ml at 20°C: 4.87
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Environmental
Data
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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.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61GT5-III
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ADDITIONAL INFORMATION
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ICSC: 0336
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THALLIUM SULFATE
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(C) IPCS, CEC, 1994
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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.
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