Potassium hexafluorosilicate
Potassium hexafluorosilicate (CAS: 16871-90-2, Formula: K2SiF6) is an inorganic compound with a molar mass of 220.27 g/mol. This white crystalline solid is primarily known for its applications in materials science and as a source of fluoride ions. It is commonly used in the production of ceramics, as a component in certain fluxes, and in various chemical synthesis processes requiring a potassium and silicate source.
Ceramics and Glazes
Potassium hexafluorosilicate serves as a fluxing agent in ceramic glazes, contributing to a lower melting point and improved surface finish. Its incorporation can enhance the properties of the final ceramic product.
Chemical Synthesis
It is utilised as a reagent in various chemical syntheses where a source of potassium or fluoride is required. This includes the preparation of other silicon-containing compounds and fluorinating agents.
Materials Science Research
The compound finds use in research and development within materials science, particularly in the study of novel materials and their properties. Its controlled decomposition can yield specific ceramic precursors.
| Molecular weight | 220.27 |
|---|---|
| Linear formula | K2SiF6 |
| Density | 2.665 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 2655 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 Potassium hexafluorosilicate used for?
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Potassium hexafluorosilicate is used in applications such as ceramic glazes, fluxes, and general chemical synthesis. It is also employed in materials science research. Always handle with appropriate safety precautions due to its hazardous nature.
What are the CAS number and chemical formula for Potassium hexafluorosilicate?
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The CAS number for Potassium hexafluorosilicate is 16871-90-2, and its chemical formula is K2SiF6.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium hexafluorosilicate typically as a technical or research grade. The specific assay is detailed on the product's Certificate of Analysis. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should Potassium hexafluorosilicate be handled safely?
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Potassium hexafluorosilicate is a Danger hazard (GHS06), toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331). Use with extreme caution, requiring safety goggles, face shields, appropriate gloves, and a P2 respirator. Ensure adequate ventilation and follow all safety guidelines strictly.
Is Potassium hexafluorosilicate a controlled substance?
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Based on the provided data, Potassium hexafluorosilicate is not listed as a controlled substance. However, regulations can vary by region, and users should verify local compliance.
How is Potassium hexafluorosilicate packed and shipped?
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Potassium hexafluorosilicate is packed according to international shipping regulations for hazardous materials (UN 2655, Class 6.1, Packing Group III). Tech Serve Solutions expertly handles global export and logistics.
How can I request a sample or quote for Potassium hexafluorosilicate?
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To request a sample or a quotation for Potassium hexafluorosilicate, please contact the Tech Serve Solutions sales team through our website or by direct inquiry, providing your specific requirements.
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