Sodium hexafluorosilicate
Sodium hexafluorosilicate (CAS: 16893-85-9, Formula: Na2SiF6) is an inorganic compound recognised for its role in water fluoridation and as a flux in metallurgy. This white crystalline powder has a molecular weight of 188.06 g/mol. It serves as a key ingredient in the manufacturing of insecticides, rodenticides, and certain glass and ceramic products. Its applications are primarily industrial and in public health initiatives.
Water Fluoridation
Sodium hexafluorosilicate is widely used as a source of fluoride ions for community water fluoridation programs. It helps in preventing tooth decay and promoting dental health. This application is a significant public health measure in many regions.
Insecticide and Rodenticide Production
This compound is a primary ingredient in the synthesis of various pesticides, including insecticides and rodenticides. It acts as a toxic agent, effectively controlling insect and rodent populations in agricultural and urban environments.
Metallurgical Flux
In the metals industry, sodium hexafluorosilicate functions as a flux. It is used to remove impurities from molten metals, thereby improving the quality and workability of the final metal products.
Glass and Ceramic Manufacturing
It finds application in the production of specialised glass and ceramic materials. Its inclusion can alter the properties of these materials, contributing to their durability and specific characteristics.
| Molecular weight | 188.06 |
|---|---|
| Linear formula | Na2SiF6 |
| Form | powder |
| Density | 2.68 g/mL at 25 °C(lit.) |
Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2674 6.1 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25 |
| Safety statements (S) | 26-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium Hexafluorosilicate used for?
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Sodium hexafluorosilicate is primarily used in water fluoridation, the production of insecticides and rodenticides, as a metallurgical flux, and in the manufacturing of glass and ceramics.
What are the CAS number and chemical formula for Sodium Hexafluorosilicate?
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The CAS number for Sodium Hexafluorosilicate is 16893-85-9, and its chemical formula is Na2SiF6.
What grade and purity does Tech Serve Solutions supply for Sodium Hexafluorosilicate?
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Tech Serve Solutions supplies Sodium Hexafluorosilicate in a technical/research grade. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with Sodium Hexafluorosilicate?
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Sodium Hexafluorosilicate is classified as acutely toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331). It requires careful handling with appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges. Always consult the Safety Data Sheet (SDS) before use.
How is Sodium Hexafluorosilicate packed, shipped, and exported?
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We adhere to all relevant regulations for the packing, shipping, and export of chemical products, including UN 2674 classification for transport.
How can I request a sample or quote for Sodium Hexafluorosilicate?
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To request a sample or a quote, please contact our sales team through the website or by telephone. Provide the product name and CAS number for prompt service.
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