Scandium bromide
Crystal structure | ||||||||||||||||
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__ Sc 3+ __ Br - | ||||||||||||||||
General | ||||||||||||||||
Surname | Scandium bromide | |||||||||||||||
other names |
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Ratio formula | ScBr 3 | |||||||||||||||
Brief description |
colorless solid |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 284.67 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
3.914 g cm −3 |
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Melting point |
970 ° C |
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solubility |
soluble in water |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Scandium bromide is an inorganic chemical compound of scandium from the group of bromides .
Extraction and presentation
Scandium bromide can be obtained by directly reacting scandium with bromine .
The scandium bromide hydrate is obtained from the oxide by reaction with hydrobromic acid .:
The anhydrous scandium bromide can in turn be obtained from this by reacting with an excess of ammonium bromide.
properties
Scandium bromide is a colorless solid that is soluble in water. It has a trigonal crystal system similar to that of bismuth triiodide with the space group R 3 (space group no. 148) .
Individual evidence
- ↑ a b c d data sheet Scandium (III) bromide, anhydrous, powder, ≥99.99% trace metals basis from Sigma-Aldrich , accessed on November 4, 2012 ( PDF ).
- ^ A b c Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 718 ( limited preview in Google Book search).
- ^ A b Catherine E. Housecroft, AG Sharpe: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 598 ( limited preview in Google Book search).
- ↑ Web elements: WebElements Periodic Table of the Elements | Scandium | chemical reaction data
- ↑ a b Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , pp. 1074-1077.