Description

Potassium Fluorosilicate is an inorganic salt widely utilized for its unique fluoride-releasing properties and chemical stability. This compound is valued in industrial processes for its role as a key source of fluoride ions and as a fluxing agent. It serves critical functions in the ceramics, metallurgy, and glass manufacturing industries, where precise chemical composition and reliable performance are paramount.

Application

• Ceramics & Enamel Manufacturing: Acts as a powerful opacifier and fluxing agent to lower melting points and improve surface finish.
• Aluminum & Magnesium Metallurgy: Used as a refining flux to remove impurities and improve the quality of molten metals.
• Glass Production: Serves as a source of fluoride for producing opal glass and specialized optical glasses.
• Wood Preservation & Insecticide Formulations: Functions as an active ingredient due to its insecticidal and fungicidal properties.
• Industrial Laundry & Water Treatment: Employed in specific formulations for water fluoridation and as a laundry sour.
• Chemical Synthesis: Used as a precursor or fluoride source in the synthesis of other silicon and fluorine-containing compounds.

Basic Information

Product Name	Potassium Fluorosilicate
CAS No.	16871-90-2
Molecular Formula	K2SiF6
Molecular Weight	220.27 g/mol
Synonyms	Potassium Hexafluorosilicate; Dipotassium Hexafluorosilicate; Potassium Silicofluoride; Silicate(2-), Hexafluoro-, Dipotassium; K2SiF6; Dipotassium Silicon Hexafluoride
EINECS	240-896-2

Quality Control

Our Potassium Fluorosilicate is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical tests including assay, impurity profiling, and physical characterization. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and bases. The product is moisture-sensitive; keep the container tightly sealed when not in use to prevent caking or degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (K2SiF6)	≥ 98.0 %
Water Insoluble Matter	≤ 0.5 %
Loss on Drying	≤ 0.5 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.05 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.