CAS No. : 16893-85-9
Fluorosilicate salt with stable opacifying, fluxing and etching performance, a functional material for enamel and glass processing.
Sodium Fluorosilicate, also known as Sodium Hexafluorosilicate, is a toxic inorganic fluoride salt used mainly in glass and enamel, ceramic glaze, sodium-silicate curing and acid-resistant construction materials, fluorine-chemical production, and selected industrial processes. YANTAI CHEMICAL supplies 98.5% and 99% specifications from major Chinese producers.
| Item | Specification |
|---|---|
| Product Name | Sodium Hexafluorosilicate (Sodium Hexafluorosilicate / Sodium Silicofluoride) |
| CAS No. | 16893-85-9 |
| Formula | Na₂SiF₆ |
| Molecular Weight | 188.06 |
| Appearance | White crystalline powder or granules, slightly soluble in water. |
| Product Attribute | Class 6.1 Toxic Dangerous Goods, UN 2674; contact with acids may release toxic fluorine-containing gas. |
| Application | Typical Use |
|---|---|
| Glass & Enamel | It can be used as a fluorine-containing raw material or flux component for certain opal glass, enamel and glaze systems. Its actual performance depends on the formulation and firing process. |
| Ceramic Glaze | Used in selected ceramic glaze formulations to adjust melting behaviour, opacification and surface finish. Dosage and discharge shall comply with regulatory requirements for fluorine-containing substances. |
| Water Glass / Acid-proof Materials | Commonly used as a curing agent for water glass systems, applied in acid-resistant cement, mortar and related anti-corrosion engineering materials. |
| Fluorochemicals / Others | Suitable for producing other fluorochemicals and certain metal treatment processes. Drinking water fluoridation stated in original docs is under tight regulation and not generally promoted herein. |
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