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| Product name | Potassium hexafluorosilicate |
| Alias | Potassium Fluorosilicate; Potassium Hexafluorosilicate |
| CAS No. | 16871-90-2 |
| EINECS number | 240-896-2 |
| Molecular formula | FKO2Si |
| Molecular weight | 118.181 |
| Structural formula |  |
| Physicochemical properties | Property: White crystal or powder. Odorless and tasteless. Relative density: 3.08 Solubility: slightly soluble in water. Soluble in hydrochloric acid, the solubility increases slightly with the increase of temperature. Insoluble in alcohol. |
| Uses | For wood preservation, ceramic manufacturing, aluminum and magnesium smelting, optical glass manufacturing, synthetic mica and potassium fluorochlorate manufacturing, etc. |