A6716912
Potassium fluosilicate , AR,99.0% , 16871-90-2
CAS NO.：16871-90-2
Empirical Formula: F6K2Si
Molecular Weight: 220.27
MDL number: MFCD00040666
EINECS: 240-896-2
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | °Cd ec.) |
| Boiling point: | dec |
| Density | 2.665 g/mL at 25 °C(lit.) |
| vapor pressure | 0.01Pa |
| refractive index | 1.3991 |
| solubility | insoluble in ethanol |
| form | Powder |
| Specific Gravity | 2.665 |
| color | White |
| Odor | Odorless |
| Water Solubility | Slightly soluble in water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 0: forms stable aqueous solutions |
| Merck | 14,7638 |
| Solubility Product Constant (Ksp) | pKsp: 6.06 |
| Exposure limits | ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3 |
| LogP | 0.001 |
| CAS DataBase Reference | 16871-90-2(CAS DataBase Reference) |
| EPA Substance Registry System | Silicate(2-), hexafluoro-, dipotassium (16871-90-2) |
Description and Uses
In the manufacture of opalescent glass, in porcelain enamels, in insecticides. Also used in aluminum metallurgy.
Safety
| Symbol(GHS) |  GHS06 |
| Signal word | Danger |
| Hazard statements | H301+H311+H331 |
| Precautionary statements | P280-P301+P310+P330-P302+P352+P312-P304+P340+P311 |
| Hazard Codes | T,Xi |
| Risk Statements | 23/24/25 |
| Safety Statements | 26-45 |
| RIDADR | UN 2655 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | VV8400000 |
| F | 21 |
| Hazard Note | Irritant |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 2826908090 |
