Sodium Fluorosilicate
Sodium Fluorosilicate (Na2SiF6, CAS 16893-85-9), ≥98.5%, supplied wholesale by Zyntex for professional use. Fluoride source for water fluoridation, opacifier for glass and enamel, and gelling agent for latex foam. CoA and SDS.
Description
Sodium Fluorosilicate Product Overview
Sodium fluorosilicate (Na2SiF6) is a white, fine crystalline powder that dissolves only slightly in water. It is a by-product of phosphate fertilizer production, where fluorine from phosphate rock is recovered.
Water utilities in several countries use it to fluoridate drinking water, because it is a stable, easy-to-dose fluoride source. Similarly, glass and enamel producers use it as an opacifier for opal glass and white enamels, while latex foam producers use it as a gelling agent in the production of foam rubber. It also serves as a raw material for other fluorine compounds.
Because soluble fluorides are toxic if swallowed, Zyntex supplies it for professional use. Related fluoride compounds in our range also include Hexafluorozirconic acid and Sodium Hexafluorozirconate.
Key Applications of Sodium Fluorosilicate
Typical uses include, for example:
💧 Water Fluoridation
Stable fluoride source for drinking water.
🏺 Glass and Enamel
Opacifier for opal glass as well as white enamels.
🛏️ Latex Foam
Gelling agent for foam rubber.
🧪 Fluorine Chemicals
Raw material for fluoride compounds.
Sodium Fluorosilicate Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Sodium Fluorosilicate |
| CAS Number | 16893-85-9 |
| Molecular Formula / Weight | Na2SiF6 / 188.06 g/mol |
| Assay (Purity) | ≥ 98.5% |
| Appearance | White, fine crystalline powder |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: Toxic if swallowed, in contact with skin or if inhaled; contact with acids releases toxic hydrogen fluoride. For professional use only, so avoid dust formation and also wear gloves, eye protection and respiratory protection. Store locked in tightly closed containers away from acids and food. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Frequently Asked Questions
Why is sodium fluorosilicate used for water fluoridation?
Because it is stable, easy to dose and provides fluoride at low cost, many utilities use it to adjust fluoride levels in drinking water.
What does sodium fluorosilicate do in latex foam?
It acts as a delayed-action gelling agent, so the foamed latex sets evenly into foam rubber.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.
