Description

Calcium Hexafluorosilicate is an inorganic salt primarily used as a source of fluoride ions and silicon. This compound is valued for its role in industrial processes requiring controlled fluorination and surface treatment. It serves as a critical raw material for manufacturers in the ceramics, metallurgy, and water treatment industries seeking reliable and consistent chemical performance.

Application

• Ceramics and Enamel Manufacturing: Acts as an opacifier and fluxing agent to lower melting points and improve surface properties.
• Metal Surface Treatment: Used in metal finishing and pickling baths for aluminum and magnesium alloys.
• Water Fluoridation Agent: Employed in municipal water treatment systems to provide fluoride for dental health.
• Wood Preservative: Serves as a component in formulations to protect lumber from fungal decay and insect damage.
• Glass Etching and Frosting: Provides the fluoride source for acid-based etching solutions.
• Manufacture of Other Fluorosilicate Salts: Used as a precursor in chemical synthesis.
• Concrete Hardener and Sealer: Applied to densify and waterproof concrete surfaces.

Basic Information

Product Name	Calcium Hexafluorosilicate
CAS No.	16925-39-6
Molecular Formula	CaSiF6
Molecular Weight	182.15 g/mol
Synonyms	Calcium Silicofluoride; Calcium Fluosilicate; Hexafluorosilicate(2-) Calcium (1:1); Calcium Hexafluorosilicate(2-); Fluosilicic Acid, Calcium Salt; Kalziumhexafluorosilicat (German)
EINECS	240-992-1

Quality Control

Our Calcium Hexafluorosilicate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in original packaging away from moisture sources. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (CaSiF6)	≥ 98.0 %
Water Insoluble Matter	≤ 0.5 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.05 %
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 1.0 %

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