Chemistry:Ammonium hexafluorochromate

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

Ammonium hexafluorochromate is an inorganic chemical compound with the chemical formula (NH
4
)
3
CrF
6
.[1]

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]

[NH
4
]
3
[CrF
6
] → CrF
3
+ 3 NH
3
+ 3 HF

References

  1. "Ammonium hexafluorochromate(iii)". NIST. https://webbook.nist.gov/cgi/formula?ID=B8001322. 
  2. Donnay, Joseph Désiré Hubert (1963) (in en). Crystal Data; Determinative Tables. American Crystallographic Association. p. 948. https://books.google.com/books?id=x5ghAQAAMAAJ&dq=ammonium+hexafluorochromate&pg=PA1155. Retrieved 23 August 2024. 
  3. Donnay, Joseph Désiré Hubert (1973) (in en). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 239. https://books.google.com/books?id=5lVCBwmZsLYC&dq=ammonium+hexafluorochromate&pg=RA6-PA239. Retrieved 23 August 2024. 
  4. Bukovec, P.; Šiftar, J. (1 May 1974). "Zur Kenntnis der thermischen Zersetzung von Ammoniumhexafluoroscandat,-titanat,-vanadat und-chromat" (in de). Monatshefte für Chemie / Chemical Monthly 105 (3): 510–516. doi:10.1007/BF00912602. ISSN 1434-4475. https://link.springer.com/article/10.1007/BF00912602. 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. Bibcode1991JFluC..54..174M. https://www.sciencedirect.com/science/article/abs/pii/S0022113900836842. Retrieved 23 August 2024.