Ammonium hexafluoroarsenate
In today's world, Ammonium hexafluoroarsenate is a topic that has gained great relevance in different areas of society. From politics and economics, to culture and technology, Ammonium hexafluoroarsenate has captured the attention of millions of people around the world. With its impact on people's daily lives and its influence on global decision-making, Ammonium hexafluoroarsenate has become a constant point of interest for researchers, opinion leaders and ordinary citizens alike. In this article, we will explore the various facets of Ammonium hexafluoroarsenate and analyze its impact on different aspects of modern life.
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3D model (JSmol)
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PubChem CID
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| Properties | |
| AsF6H4N | |
| Molar mass | 206.951 g·mol−1 |
| Appearance | colourless crystals |
| Density | 2.769 g/cm3 |
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| GHS labelling:[citation needed] | |
  
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
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Ammonium hexafluoroarsenate is an inorganic chemical compound with the chemical formula NH4AsF6.[1][2]
Synthesis
Arsenic pentoxide is mixed with an excess of ammonium fluoride; the mixture is fused to produce ammonium hexafluoroarsenate:
- AsF5 + NH4F → NH4AsF6
Also, reaction of arsenic trifluoride, hydrofluoric acid, and ammonia:[dubious – discuss]
- AsF3 + HF + NH4 → NH4AsF6
Treatment of hexafluoroarsenic acid and ammonia:
- HAsF6 + NH3 → NH4AsF6
Physical properties
Ammonium hexafluoroarsenate crystallizes rhombohedral with the KOsF6 structure type, with parameters: a = 7.459(3) Å, c = 7.543(3) Å (at 200 K), Z = 3, unit cell volume 363.4 Å3, space group R3 (No. 148).[3]
References
- ^ Desmarteau, Darryl D.; Lam, William Y.; O'Brien, Brian A.; Chang, Shi-Ching (1 July 1984). "Novel ammonium hexafluoroarsenate salts from reaction of (CF3)2NH, CF3N(OCF3)H, CF3N[OCF(CF3)2]H, CF3NHF and SF5NHF with the strong acid HF/ASF5". Journal of Fluorine Chemistry. 25 (3): 387–394. doi:10.1016/S0022-1139(00)81212-9. ISSN 0022-1139. Retrieved 4 September 2024.
- ^ Yaws, Carl L. (6 January 2015). The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Gulf Professional Publishing. p. 731. ISBN 978-0-12-801146-1. Retrieved 4 September 2024.
- ^ Goreshnik, E.; Mazej, Z. (July 2007). "X–ray Single Crystal Structure and Raman Spectrum of Ammonium Hexafluoroarsenate". Zeitschrift für anorganische und allgemeine Chemie. 633 (8): 1271–1273. doi:10.1002/zaac.200700043. ISSN 0044-2313. Retrieved 4 September 2024.