Description

Disodium Hexafluorosilicon is an inorganic salt of silicon and fluorine, widely recognized for its utility as a source of hexafluorosilicate ions. This compound is valued for its role in industrial processes that require controlled fluoride release or silicon modification. It is primarily sought by manufacturers in the water treatment, metal surface finishing, and specialty glass industries. Our supply ensures high purity and consistent quality for demanding technical applications.

Application

• Water Fluoridation and Treatment: Acts as a source of fluoride ions for municipal water treatment systems.
• Metal Surface Treatment: Used in electroplating and metal finishing baths for cleaning and surface preparation.
• Glass and Ceramics Manufacturing: Serves as a fluxing agent and opacifier in the production of specialty glasses, enamels, and ceramic glazes.
• Wood Preservation: Employed in formulations to protect lumber from fungal decay and insect infestation.
• Concrete Hardening and Sealer: Used to densify and harden concrete surfaces, improving durability and dustproofing.
• Industrial Cleaning: A component in specialized acidic cleaning solutions for removing mineral deposits.
• Chemical Synthesis: A precursor for the synthesis of other silicon-fluorine compounds and specialty chemicals.

Basic Information

Product Name	Disodium Hexafluorosilicon
CAS No.	39413-34-8
Molecular Formula	Na₂SiF₆
Molecular Weight	188.06 g/mol
Synonyms	Sodium Hexafluorosilicate; Sodium Fluosilicate; Disodium Hexafluorosilicate(2-); Sodium Silicon Fluoride; Na₂SiF₆; Disodium Silicofluoride; Silicate(2-), hexafluoro-, disodium; Disodium Hexafluoro Silicate
EINECS	254-449-3

Quality Control

Our Disodium Hexafluorosilicon is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Production adheres to relevant industrial standards, and each lot is tested against rigorous internal specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical parameters is provided with every shipment to guarantee product integrity for your process.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Na₂SiF₆)	≥ 98.0 %
Water Insoluble Matter	≤ 0.5 %
Loss on Drying	≤ 0.5 %
Chloride (Cl)	≤ 0.05 %
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.