Potassium hexachloroplatinate
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Potassium hexachloroplatinate is the inorganic compound with the formula K2PtCl6. It is a yellow solid that is an example of a comparatively insoluble potassium salt. The salt features the hexachloroplatinate(IV) dianion, which has octahedral coordination geometry.
Quick Facts Identifiers, Properties ...
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ECHA InfoCard | 100.037.239 |
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Properties | |
K2PtCl6 | |
Molar mass | 485.99 g/mol |
Appearance | orange to yellow solid |
Density | 3.344 g/cm3 |
Melting point | 250 °C (482 °F; 523 K) (decomposes) |
0.89 g/100ml (at 25 °C) [1] | |
Solubility product (Ksp) |
7.48×10−6[2] |
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GHS labelling:[3] | |
Danger | |
H301, H317, H318, H334 | |
P261, P264, P270, P272, P280, P285, P301+P310, P302+P352, P304+P341, P305+P351+P338, P310, P321, P330, P333+P313, P342+P311, P363, P405, P501 | |
Flash point | 250 °C (482 °F; 523 K) |
Safety data sheet (SDS) | Oxford MSDS |
Related compounds | |
Other anions |
Potassium tetrachloroplatinate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The precipitation of this compound from solutions of hexachloroplatinic acid was formerly used for the determination of potassium by gravimetric analysis.[4] It is also useful as an intermediate in the recovery of platinum from wastes.[5]