Chromium(II) bromide
Chromium(II) bromide is an inorganic compound with the chemical formula CrBr2.
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IUPAC name
Chromium(II) bromide | |
Other names
Chromium dibromide, Chromium bromide, Chromous bromide | |
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UNII | |
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Properties | |
CrBr2 | |
Molar mass | 211.804 g·mol−1 |
Appearance | White crystalline solid; yellow when heated, oxidizes in moist air, stable in dry air[1] |
Density | 4.236 g/cm3[1] |
Melting point | 842 °C (1,548 °F; 1,115 K)[1] |
soluble, exothermal blue solution[1] | |
Structure | |
monoclinic[1] | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Synthesis
CrBr3 is reduced to CrBr2 by exposing CrBr3 to hydrogen gas for 6–10 hours at 350-400 °C, yielding CrBr2 and hydrobromic acid.[2]
References
- Perry, Dale L. (2011). Handbook of Inorganic Compounds, Second Edition. Boca Raton, Florida: CRC Press. p. 120. ISBN 978-1-43981462-8. Retrieved 2014-01-10.
- Brauer, Georg (1965) [1962]. Handbuch Der Präparativen Anorganischen Chemie [Handbook of Preparative Inorganic Chemistry] (in German). 2. Stuttgart; New York, New York: Ferdinand Enke Verlag; Academic Press, Inc. p. 1341. ISBN 978-0-32316129-9. Retrieved 2014-01-10.
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