Potassium hexafluoronickelate(IV)
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IUPAC name
potassium hexafluoronickelate(IV)
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.153.655 |
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| Properties | |
| K2NiF6 | |
| Molar mass | 250.880 |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Potassium hexafluoronickelate(IV) is an inorganic compound with the chemical formula K
2NiF
6. It can be produced through the reaction of potassium fluoride, nickel dichloride, and fluorine.
It reacts violently with water, releasing oxygen. It dissolves in anhydrous hydrogen fluoride to produce a light-red solution. Potassium hexafluoronickelate(IV) decomposes at 350 °C, forming potassium hexafluoronickelate(III), nickel(II) fluoride, and fluorine:
Potassium hexafluoronickelate is a strong oxidant. It can turn chlorine pentafluoride and bromine pentafluoride into ClF+
6 and BrF+
6, respectively:
It adopts the structure seen for K2PtCl6.
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