A7261112
Sodium fluorosilicate , AR,98% , 16893-85-9
CAS NO.：16893-85-9
Empirical Formula: F6Na2Si
Molecular Weight: 188.06
MDL number: MFCD00003491
EINECS: 240-934-8
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | melts at red heat, decomposing [MER06] |
| Boiling point: | 620℃[at 101 325 Pa] |
| Density | 2.68 g/mL at 25 °C(lit.) |
| vapor pressure | 0.01Pa |
| refractive index | 1.310 |
| solubility | insoluble in ethanol |
| form | Crystals |
| color | White |
| Specific Gravity | 2.68 |
| Odor | odorless |
| Water Solubility | Slightly soluble in water. Solubility increases with temperature. Insoluble in alcoholSlightly soluble in water. Insoluble in alcohol. |
| Merck | 14,8624 |
| Exposure limits | ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| Stability: | Stable. Incompatible with oxidizing agents, water. Moisture sensitive. |
| LogP | 0.001 |
| CAS DataBase Reference | 16893-85-9(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium fluosilicate (16893-85-9) |
Description and Uses
In enamels for china and porcelain; manufacture of opal glass; as insecticide, rodenticide; mothproofing of woolens. Fluoridating agent for drinking water. Intermediate in production of synthetic cryolite.
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 2674 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | VV8410000 |
| Hazard Note | Irritant |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 2826908090 |
| Hazardous Substances Data | 16893-85-9(Hazardous Substances Data) |
| Toxicity | LD in rabbits (mg F/kg): 76 intragastric; in rats (mg F/kg): 42 s.c. (Muehlberger); LD in guinea pigs (mg/kg): 250 orally, 500 s.c. (Waldbott) |
