Ammonium hexafluoroaluminate
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3AlF6.png)
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| General | ||||||||||||||||
| Surname | Ammonium hexafluoroaluminate | |||||||||||||||
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| Molecular formula | (NH 4 ) 3 [AlF 6 ] | |||||||||||||||
| Brief description |
white odorless solid |
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| properties | ||||||||||||||||
| Molar mass | 195.09 g mol −1 | |||||||||||||||
| Physical state |
firmly |
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| density |
1.78 g cm −3 |
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| solubility |
soluble in water (7.7 g l −1 at 25 ° C) |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||||||||
Ammonium hexafluoroaluminate is a chemical compound from the group of ammonium compounds and aluminates .
Extraction and presentation
Ammonium hexafluoroaluminate can be obtained by reacting ammonium fluoride with aluminum hydroxide.
![{\ displaystyle \ mathrm {6 \ NH_ {4} F + Al (OH) _ {3} \ longrightarrow (NH_ {4}) _ {3} [AlF_ {6}] + 3 \ NH_ {4} OH}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3a8bc07d0a5a46dc2ccb13d129f84fb5279c14fc)
properties
Ammonium hexafluoroaluminate is a white, odorless solid that is soluble in water. It is thermally stable up to over 100 ° C.
use
Ammonium hexafluoroaluminate is used to make aluminum fluoride .
Individual evidence
- ↑ a b c d e f g h data sheet Ammonium hexafluoroaluminate, 99.8% (metals basis) from AlfaAesar, accessed on September 24, 2013 ( PDF )(JavaScript required) .
- ↑ a b c Georg Brauer (ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 239.