Thallium(I) bromide

  • Thallous bromide
Formula
TlBr
Structure
Description
yellow cubic crystals

Registry Numbers and Inventories.
CAS
7789-40-4
EC (EINECS/ELINCS)
232-163-0
RTECS
XG3850000
RTECS class
Other
UN (DOT)
1707
Merck
12,9393
Beilstein/Gmelin
13632 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
BrTl
Formula mass
284.28
Melting point, °C
460
Boiling point, °C
815
Vapor pressure, mmHg
0.603 (419 C)
Vapor density (air=1)
10
Density
7.54 g/cm3 (21.7 C)
Thermal expansion
0.000137/K
Heat of fusion
15.11 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Store protected from light.
Handling
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.
Protection
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.
Respirators
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Sodium, Potassium.
Decomposition
Thallium fumes, bromine.

Fire.
Fire fighting
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. Use carbon dioxide or dry chemical.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Chronic ingestion may cause bromism characterized by disturbances of the central nervous system, skin and digestive tract.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause alopecia (loss of hair). Large doses of thallium may produce hypotension and bradycardia.
   Inhalation
Inhalation of bromides may cause irritation of the upper respiratory tract and lung tissue.
   Skin
May cause skin irritation. Excessive drying of the skin may result form repeated or prolonged contact. Exposure to bromides may cause rashes, especially of the face (resembling acne) and boils.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
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.
   Inhalation
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.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1707
Response guide
Hazard class
6.1
Packing Group
II