Potassium hexachloroplatinate
| Identifiers | |
|---|---|
3D model (JSmol) |
|
| ECHA InfoCard | 100.037.239 |
| EC Number |
|
PubChem CID |
|
| RTECS number |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| |
| 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) | |
Solubility product (Ksp) |
7.48×10−6 |
| Hazards | |
| GHS labelling: | |
| 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).
Infobox references | |
Potassium hexachloroplatinate is the inorganic compound with the formula K2PtCl6. It is a yellow solid that is a comparatively insoluble potassium salt. The salt features the hexachloroplatinate(IV) dianion, which has octahedral coordination geometry.
The precipitation of this compound from solutions of hexachloroplatinic acid was formerly used for the determination of potassium by gravimetric analysis. It is also useful as an intermediate in the recovery of platinum from wastes.