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    • Sodium Hexafluorosilicate CAS 16893-85-9

    Sodium Hexafluorosilicate CAS 16893-85-9

    Sodium Hexafluorosilicate, CAS 16893-85-9, is also known as sodium fluorosilicate or sodium silicofluoride. It is an inorganic fluorosilicate salt used in drinking-water fluoridation, opal glass, ceramics and other industrial processes. State the intended process, required powder specification, quantity, packaging, destination and document needs when requesting a quotation.

    • CAS: 16893-85-9
    • Synonyms: Sodium hexafluorosilicate; Sodium fluorosilicate; Sodium silicofluoride; Na2SiF6
    • Einecs: 240-934-8
    • Molecular Formula: Na₂SiF₆
    • Grade: Confirm the current product-specific specification.
    • Package: Confirm packaging for the offered material and destination requirements.
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    Product Description

    Sodium hexafluorosilicate, also called sodium fluorosilicate, is an inorganic fluorosilicate salt identified by CAS 16893-85-9.

    Molecular formula: Na₂SiF₆.

    Molar mass: 188.06 g/mol.

    CAS Number: 16893-85-9.

    EINECS: 240-934-8.

    Density: confirm the current product-specific value.

    Physical form, appearance, and key quality limits: confirm the current product-specific specification.

    Typical use: sodium hexafluorosilicate is an inorganic fluorosilicate used in industrial processing. Confirm the process-specific powder requirements before quotation.

    FAQ - Technical & Supply Chain

    • Q:

      What is Sodium Hexafluorosilicate used for?

      A: Sodium Hexafluorosilicate, also called sodium fluorosilicate or Na2SiF6, is mainly used in drinking-water fluoridation, as an opal glass/ceramics raw material, and in metal or ore processing. It also appears in selected enamel, cement/concrete, fluoride-preparation and industrial biocide applications. The intended use matters because purity, trace-metal and particle-size requirements differ by application.
    • Q:

      Does CAS 16893-85-9 define one grade?

      A: No. CAS 16893-85-9 identifies Sodium Hexafluorosilicate as Na2SiF6, but water-treatment, glass, ceramics and metal-treatment grades can still have different assay, fluoride, heavy-metal, moisture and particle-size profiles. State the intended use and required specification when comparing offers.
    • Q:

      Which specifications and physical properties matter?

      A: Confirm Na2SiF6 or fluoride content, heavy metals such as lead and arsenic, moisture, particle-size distribution and insoluble matter. It is normally a white crystalline powder with density around 2.68-2.7 g/cm3, only slight water solubility, and decomposition at high temperature.
    • Q:

      How should Sodium Hexafluorosilicate be stored and transported?

      A: It is commonly transported as UN 2674, Hazard Class 6.1, Packing Group III. Store in a cool, dry, ventilated area away from acids, food, feed and incompatible materials, keep containers tightly closed, and avoid dust generation.

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