Terbium(III) bromide
Chemical compound From Wikipedia, the free encyclopedia
Terbium(III) bromide (TbBr3) is a crystalline chemical compound.[5]
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| Names | |
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| Other names
terbium tribromide | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.034.932 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| TbBr3 | |
| Molar mass | 398.637 g/mol |
| Appearance | white powder (hexahydrate)[1] |
| Density | 4.62 g/cm3[2] |
| Melting point | 827[3] °C (1,521 °F; 1,100 K) |
| Boiling point | 1,490[4] °C (2,710 °F; 1,760 K) |
| soluble[4] | |
| Hazards | |
| GHS labelling: | |
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| Warning | |
| H315, H319, H335 | |
| P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Production and properties
Terbiun(III) bromide can be produced by heating terbium metal or terbium(III) oxide with ammonium bromide.[6]
- Tb2O3 + 6 NH4Br → 2 TbBr3 + 6 NH3 + 3 H2O
A solution of terbium(III) bromide can crystallize a hexahydrate. When heating the hexahydrate, it will dehydrate and produce some terbium oxybromide (TbOBr).[7]
Terbium(III) bromide is a white solid that is soluble in water.[4] Its crystal structure is the same as bismuth iodide.[8]
References
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