Sodium fluorosilicate
Names | |
---|---|
Preferred IUPAC name
Sodium fluorosilicate | |
Systematic IUPAC name
Sodium hexafluoridosilicate(2–)
[1] | |
Other names
Disodium hexafluorosilicate/sodium fluosilicate/sodium silicofluoride | |
Identifiers | |
16893-85-9 | |
ChemSpider | 26165 |
EC number | 240-934-8 |
| |
Jmol-3D images | Image |
PubChem | 28127 |
RTECS number | VV8410000 |
| |
UN number | 2674 |
Properties | |
Molecular formula |
F6Na2Si |
Molar mass | 188.06 g·mol−1 |
Appearance | white granular powder |
Odor | odorless |
Density | 2.7 g/cm3 |
0.64 g/100 mL (20 °C) 1.27 g/100 mL (50 °C) 2.45 g/100 mL (100 °C) | |
Solubility | insoluble in alcohol |
Refractive index (nD) |
1.312 |
Structure | |
Crystal structure | hexagonal |
Hazards | |
NFPA 704 | |
Related compounds | |
Other cations |
Ammonium hexafluorosilicate Fluorosilicic acid |
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
Infobox references | |
Sodium fluorosilicate is a compound with the chemical formula Na2SiF6.
Manufacturing
Sodium fluorosilicate is made by neutralizing fluorosilicic acid with sodium chloride or sodium sulfate.
Possible Application
It is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production.[2]
See also
- Fluorosilicic acid
- Ammonium fluorosilicate
References
- ↑ "Parent Hydride Names and Substitutive Nomenclature". Nomenclature of Inorganic Chemistry, IUPAC Recommendations 2005 (PDF). RSC Publishing. 2005. pp. 114–135.
- ↑ http://www.pub.gov.sg/general/pages/watertreatment.aspx