- Thallous chloride
- Thallium(I) chloride
White, crystalline powder.
As catalyst in chlorinations.
Registry Numbers and Inventories.
Mutagen; Reproductive Effector
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.913 (422 C)
5.246 g/cm3 (642 C)
Solubility in water
Heat of fusion
Hazards and Protection.
Store in a cool, dry place. Store in a tightly closed container. Store protected from light.
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stable under normal temperatures and pressures.
Strong reducing agents, strong acids.
Chlorine, thallium fumes.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Non-combustible, substance itself does not burn but may decompose upon heating to produce irritating, corrosive and/or toxic fumes. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. In case of fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire may produce irritating, corrosive and/or toxic gases.
NIOSH REL: TWA 0.1 mg/m3 [skin] OSHA PEL: TWA 0.1 mg/m3 [skin] IDLH 15 mg/m3 (as Tl)
Prolonged absorption may cause anorexia, weight loss, vomiting, mild diarrhea, skin rash, alopecia and anemia.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause alopecia (loss of hair). Large doses of thallium may produce hypotension and bradycardia.
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema.
May cause skin irritation. Excessive drying of the skin may result form repeated or prolonged contact.
May cause eye irritation.
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code