> wiki   Explore:images videos games  

Thallium(I) bromide

KidzSearch Safe Wikipedia for Kids.
Jump to: navigation, search
Thallium(I) bromide
CsCl polyhedra.png
Other names Thallium monobromide
CAS number 7789-40-4
PubChem 62677
EC number 232-163-0
Molecular formula TlBr
Molar mass 284.288 g/mol
Appearance yellow-white crystalline solid
Density 7.557 g/cm3
Melting point

480 °C

Boiling point

815 °C

Solubility in water 0.0047 g/100 mL (20 °C)
EU classification Very toxic (T+)
Dangerous for the environment (N)
EU Index 081-002-00-9
R-phrases R26/28, R33, R51/53
S-phrases (S1/2), S13, S28, S45, S61
Related compounds
Other anions Thallium(I) fluoride,
Thallium(I) chloride,
Thallium(I) iodide
Other cations Indium(I) bromide,
Lead(II) bromide
Bismuth bromide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Thallium(I) bromide, also known as thallous bromide, is a chemical compound. Its chemical formula is TlBr. It has thallium and bromide ions in it. The thallium is in its +1 oxidation state.


Thallium(I) bromide is a yellow-white solid. It is similar to silver bromide. It gets darker when light shines on it. It is very toxic, like all thallium compounds. It does not dissolve in water.


Thallium(I) bromide is made by reacting thallium and bromine or by reacting sodium or potassium bromide with any thallium compound.


It is used in semiconductors and gamma ray and X-ray detectors.

Related pages