Ammonium hexafluorovanadate

Ammonium hexafluorovanadate
Names
IUPAC name
Ammonium hexafluorovanadate
Other names
Ammonium hexafluorovanadate(III), triammonium vanadium hexafluoride, triammonium hexafluorovanadate(3-)
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/6FH.3 H3N.V/h6*1H;3*1 H3;/p-3
    Key: PURSFTZXXIKJST-UHFFFAOYSA-K
  • [F-].[F-].[F-].[F-].[F-] .[F-].[V].[NH4+].[NH 4+].[NH4+]
Properties
F6H12N3V
Molar mass 219.049 g·mol−1
Appearance Powder
Density g/cm3
Melting point 300
Hazards
GHS labelling:
GHS06: Toxic
Danger
H301, H311, H319, H331
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ammonium hexafluorovanadate is an inorganic chemical compound with the chemical formula (NH4)3VF6.[1][2][3]

Synthesis

The compound can be prepared by a fusion of ammonium hydrogen fluoride and vanadium trioxide.[4]

Also, a reaction of vanadium trioxide and ammonium bifluoride can produce the compound.[5]

Physical properties

Ammonium hexafluorovanadate forms powder. It is toxic.[6]

Chemical properties

The compound decomposes to vanadium pentoxide if heated in open air:[7]

4(NH4)3VF6 + 11O2 → 2V2O5 + 6N2 + 12H2O + 24HF

Uses

Ammonium hexafluorovanadate is typically used as a catalyst at temperatures below 400 °C.

References

  1. ^ "Ammonium Hexafluorovanadate(III)". American Elements. Retrieved 23 August 2024.
  2. ^ "AMMONIUM HEXAFLUOROVANADATE(III) 99.99%". chemicalbook.com. Retrieved 23 August 2024.
  3. ^ Lewis (Sr.), Richard J.; Sweet, Doris V. (1986). Regulations, Recommendations, and Assessments Extracted from RTECS: A Subfile of the Registry of Toxic Effcts of Chemical Substances. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health. p. 205. Retrieved 23 August 2024.
  4. ^ Booth, Harold Simmons (1963). Inorganic Syntheses. London. p. 88. Retrieved 23 August 2024.{{cite book}}: CS1 maint: location missing publisher (link)
  5. ^ 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.
  6. ^ "Ammonium hexafluorovanadate(III) (CAS 13815-31-1)". scbt.com. Retrieved 23 August 2024.
  7. ^ Kleinberg, Jacob (22 September 2009). Inorganic Syntheses, Volume 7. John Wiley & Sons. p. 90. ISBN 978-0-470-13270-8. Retrieved 23 August 2024.