Calcium hexafluorosilicate
- CAS NO.：16925-39-6
- Empirical Formula: CaF6Si
- Molecular Weight: 182.15
- MDL number: MFCD00015978
- EINECS: 240-991-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:39:57
What is Calcium hexafluorosilicate ?
Chemical properties
colorless, tetr; powder(s); obtained by reaction of a Ca salt and H2SiF6; used as a flotation agent and insecticide [HAW93] [MER06] [CRC10]
The Uses of Calcium hexafluorosilicate
In wood, rubber, textile industries; flotation agent; insecticide.
Safety Profile
Poison by ingestion and subcutaneous routes. See also CALCIUM COMPOUNDS. When heated to decomposition it emits toxic fumes of F-.
Properties of Calcium hexafluorosilicate
| Density | 2.25 |
| solubility | insoluble in acetone; reacts with hot H2O |
| form | colorless tetragonal crystals |
| color | colorless tetragonal crystals, crystalline |
| Water Solubility | insoluble cold H2O, partially decomposed in hot H2O [MER06] |
| Solubility Product Constant (Ksp) | pKsp: 3.09 |
| CAS DataBase Reference | 16925-39-6(CAS DataBase Reference) |
| EPA Substance Registry System | Silicate(2-), hexafluoro-, calcium (1:1) (16925-39-6) |
Safety information for Calcium hexafluorosilicate
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P284:Wear respiratory protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for Calcium hexafluorosilicate
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