Sodium fluorosilicate is widely used in water fluoridation, enamel and ceramic manufacturing, metallurgical fluxes, and as a source of fluoride ions in various chemical processes.

| Purity | 98–99% |
| Appearance | White powder |
| Bulk Density | 1.1–1.4 g/cm³ |
| IUPAC Name | Disodium hexafluorosilicate |
| Molecular Weight | 188.06 g/mol |
| Grades Available | Technical / Water-Treatment |
| HS Code (Export) | 28269080 |
| SB Chemicals SKU | SBF-1062 |
Fluxes, bath additives, grain refiners for primary and secondary aluminium production
Plating baths, surface treatment, conversion coatings for diverse metal substrates
Etching, frosting, glazes, enamels, and opacification agents
Fluoridation chemicals for municipal and industrial water systems
Fluorination reagents, catalysts, and high-purity lab chemicals
Independent verification of Sodium Silicofluoride on third-party scientific databases:
Yes. Water-treatment grade Na₂SiF₆ meets the technical specifications used by municipal water utilities, with Na₂SiF₆ ≥ 98%, As < 8 ppm, Pb < 5 ppm, free acid (as HF) < 0.5%. Each batch is shipped with a water-treatment certificate.
Sodium Silicofluoride is supplied in HDPE woven bags with inner LDPE liner (25 kg / 50 kg net), HDPE drums (25 / 50 / 250 kg), and FIBC jumbo bags (500 / 1000 kg) for solid grades. Liquid grades ship in HDPE-lined steel drums (250 kg) or 1000 L IBC totes. Custom packaging — including nitrogen-blanketed, moisture-tight, or food-grade containers — is available on request.
Standard MOQ is 1 metric tonne for solid grades and 200 kg for liquid grades; pilot quantities of 5–25 kg are available for R&D qualification. Stock items dispatch within 7–10 working days from confirmed PO. Made-to-order grades and large export consignments require 3–4 weeks. Indian deliveries by road typically reach 4–7 days; export FCL shipments depend on destination port.
Yes. A 16-section GHS-format SDS is dispatched with every shipment and is also available in advance from marketing@sbfluorochem.com. A batch-specific COA accompanies every consignment and is emailed before dispatch for goods-receipt verification. Test methods follow IS / ASTM / USP / IP / EP as applicable.
SB Chemicals exports to over 35 countries across South-East Asia, the Middle East, Africa, Europe, and the Americas. We hold IEC, GST, and APEDA registrations. Shipments move CIF / FOB / CFR / FCA / EXW from Mundra, Nhava Sheva (JNPT), or Hazira ports. Letter of Credit (LC), TT, and DA terms are accepted subject to credit approval.
Yes. SB Chemicals operates an ISO 9001:2015 certified Quality Management System at the GIDC Vapi facility. Every batch undergoes raw-material testing, in-process control, and final QC release before despatch. Clients are welcome to schedule a third-party audit of the plant.
Sodium hexafluorosilicate, formula Na2SiF6, formula weight 188.05 g/mol. White or colourless crystalline powder, hexagonal crystal system. Density 2.68 g/cm3. Solubility in water 0.65 g/100mL at 20°C, increasing with temperature. Decomposes above 600°C releasing SiF4 and NaF. Stable in dry air; non-hygroscopic.
Water-fluoridation grade meets NSF/ANSI Standard 60 and ANSI/AWWA B702 (American Water Works Association). Indian water-treatment grade meets IS 14591:1998. Industrial grades meet generic suppliers specifications. Glass-batch grade used in opal-glass production conforms to internal melt-flux specifications. Pharmacopeial grades not typically supplied.
CAS 16893-85-9. UN 2674 — Class 6.1 (Toxic), PG III. GHS pictograms: GHS06 (toxic), GHS07 (harmful). REACH registered (EC 240-934-8). TSCA listed. NSF Standard 60 certification applies for drinking-water fluoridation grade. WHO Guidelines for Drinking-Water Quality apply for water-treatment use.
| Grade | Typical Specification | Common Use |
|---|---|---|
| Technical | 98%+ | Glass batches, ceramic glazes, concrete densifier |
| Water-Treatment (NSF 60) | 98%+ low-insolubles | Municipal water fluoridation |
| Fine-Particle | 98%+ D50<50µm | Opal-glass tableware, ceramic frits |
For peer-reviewed property data, regulatory listings, and structure verification: