International Chemical Safety Cards

THALLOUS SULFATE

ICSC: 0336

THALLOUS SULFATE
Thallium sulfate
Thallium (I) sulfate
Tl₂SO₄
Molecular mass: 504.8
CAS # 7446-18-6
RTECS # XG6800000
ICSC # 0336
UN # 1707
EC # 081-002-00-9

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: all extinguishing agents allowed. Fire fighters should wear complete protective clothing including self-contained breathing apparatus.
EXPLOSION

EXPOSURE		AVOID ALL CONTACT!	IN ALL CASES CONSULT A DOCTOR!
INHALATION	(see Ingestion).	Closed system and ventilation.	Fresh air, rest. Artificial respiration if indicated. 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. Vomiting. Weakness. Delirium. Tachycardia. Coma (see Notes).	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable container. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment (extra personal protection: complete protective clothing including self-contained breathing apparatus).

Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed.

Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
T+ symbol
R: 26/28-33
S: 2-13-28-45
UN Haz Class: 6.1
UN Pack Group: II
Marine pollutant.

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0336

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

THALLOUS SULFATE

ICSC: 0336

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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 of thallium and sulfur oxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV (as Tl): ppm; 0.1 mg/m³ (as TWA) (skin) (ACGIH 1992-1993).

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, kidneys and gastrointestinal tract. Exposure may result in death. Exposure may result in hair loss. The effects may be delayed (see Notes). Medical observation is indicated.

PHYSICAL
PROPERTIES

Melting point: 632°C
Relative density (water = 1): 6.77

Solubility in water, g/100 ml at 20°C: 4.87

ENVIRONMENTAL
DATA

This substance may be hazardous to the environment; special attention should be given to aquatic organisms. It is strongly advised not to let the chemical enter into the environment.

NOTES

Depending on the degree of exposure, periodic medical examination is indicated. 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.

Transport Emergency Card: TEC (R)-61G09

IMPORTANT LEGAL NOTICE:

Neither the CEC or 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. 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.