Ammonium hexafluorovanadate
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| IUPAC name
Ammonium hexafluorovanadate
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Chemical formula
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F6H12N3V |
| Molar mass | 219.049 g·mol−1 |
| Appearance | green solid[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ammonium hexafluorovanadate is an inorganic chemical compound with the chemical formula (NH4)3VF6.
Synthesis
Ammonium hexafluorovanadate can be prepared the solid state reaction of vanadium trioxide and ammonium bifluoride.[1][2] Another method involves the solid state reaction of vanadium(III) fluoride with ammonium fluoride.[3]
Reactions
The compound decomposes to vanadium pentoxide if heated in open air:[1]
- 4(NH4)3VF6 + 11O2 → 2V2O5 + 6N2 + 12H2O + 24HF
Related compounds
An ammonium hexafluorovanadate(V) with the formula NH4VF6 has been reported.[4]
References
- ^ a b c Sturm, B. J.; Sheridan, C. W.; Crayton, P. H.; Vance, R. N. (January 1963), Kleinberg, Jacob (ed.), "Vanadium(III) Fluoride", Inorganic Syntheses, vol. 7 (1 ed.), Wiley, pp. 87–92, doi:10.1002/9780470132388.ch27, retrieved 2026-02-04
- ^ Wani, B. N.; Rao, U. R. K. (May 1991). "Fluorination of Vanadium Oxides". Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 21 (5): 779–791. doi:10.1080/15533179108016842. Retrieved 29 August 2024.
- ^ Kobayashi, Kiyoaki; Matsuo, Takasuke; Suga, Hiroshi; Khairoun, Slimane; Tressaud, Alain (1985-02-01). "Phase transition in ammonium hexafluorovanadate (III)". Solid State Communications. 53 (8): 719–722. doi:10.1016/0038-1098(85)90386-2. ISSN 0038-1098.
- ^ Ẑemva, B.; Slivnik, J.; Milićev, S. (1977-03-01). "On the synthesis of ammonium hexafluorovanadate (V)". Journal of Fluorine Chemistry. 9 (3): 251–254. doi:10.1016/S0022-1139(00)82165-X. ISSN 0022-1139.