Ammonium hexafluoroplatinate
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| Names | |
|---|---|
| Other names
Ammonium hexafluoroplatinate(IV) | |
| Identifiers | |
3D model (JSmol) |
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PubChem CID |
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| Properties | |
| F6H8N2Pt | |
| Molar mass | 345.152 g·mol−1 |
| Appearance | Pale yellow crystals |
| reacts with water | |
| Structure[1] | |
| cubic | |
| Fm3m | |
a = 8.451 Å, b = 8.451 Å, c = 8.451 Å α = 90°, β = 90°, γ = 90° | |
Lattice volume (V) |
603.6 Å3 |
Formula units (Z) |
4 units per cell |
| Hazards | |
| GHS labelling: | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Ammonium hexafluoroplatinate is an inorganic chemical compound with the chemical formula (NH4)2PtF6. It forms pale yellow, cubic crystals.
Synthesis
Ammonium hexafluoroplatinate can be prepared by direct fluorination of potassium hexachloroplatinate.[1]
It can also be prepared by treating lanthanum(III) hexafluoroplatinate with ammonium hydroxide:[2]
- La2[PtF6]3 + 6 NH4OH → 3 (NH4)2PtF6 + 2 La(OH)3
Chemical properties
Ammonium hexafluoroplatinate hydrolyses, forming the insoluble platinum(IV) hydroxide:
- (NH4)2PtF6 + 4 H2O → Pt(OH)4 + 4 HF + 2 NH4F
References
- 1 2 Fawcett, J.; Holloway, J. H.; Puddick, D. C.; Russell, D. R. (15 August 1980). "Ammonium hexafluoroplatinate(IV)". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 36 (8): 1921–1922. Bibcode:1980AcCrB..36.1921F. doi:10.1107/S0567740880007479. ISSN 0567-7408. Retrieved 2 September 2024.
- ↑ Simons, J. H. (2 December 2012). Fluorine Chemistry V5. Elsevier. p. 98. ISBN 978-0-323-14724-8. Retrieved 2 September 2024.