Ammonium hexafluorochromate

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Ammonium hexafluorochromate
Names
Other names
Ammonium hexafluorochromate(III)
Identifiers
3D model (JSmol)
  • [NH4+].[NH4+].[NH4+].F[Cr-3](F)(F)(F)(F)F
Properties
CrF6H12N3
Molar mass 220.104 g·mol−1
Appearancegreen crystals
Density g/cm3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ammonium hexafluorochromate is an inorganic chemical compound with the chemical formula (NH4)3CrF6. [1]

Contents

Physical properties

Ammonium hexafluorochromate forms crystals of cubic system, space group F43m. [2] [3]

Chemical properties

When heated, ammonium hexafluorochromate decomposed directly to the pure chromium(III) fluoride. [4] [5]

[NH4]3[CrF6] → CrF3 + 3 NH3 + 3 HF

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References

  1. ↑ "Ammonium hexafluorochromate(iii)". NIST . Retrieved 23 August 2024.
  2. ↑ Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 948. Retrieved 23 August 2024.
  3. ↑ Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 239. Retrieved 23 August 2024.
  4. ↑ Bukovec, P.; Šiftar, J. (1 May 1974). "Zur Kenntnis der thermischen Zersetzung von Ammoniumhexafluoroscandat,-titanat,-vanadat und-chromat". Monatshefte für Chemie / Chemical Monthly (in German). 105 (3): 510–516. doi:10.1007/BF00912602. ISSN   1434-4475 . Retrieved 23 August 2024.
  5. ↑ Menz, D. -H.; Bentrup, U. (1 September 1991). "Thermal decomposition of ammonium fluorochromates". Journal of Fluorine Chemistry. 54 (1): 174. doi:10.1016/S0022-1139(00)83684-2. ISSN   0022-1139 . Retrieved 23 August 2024.
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