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Astron Zircon Zircon Flour

Astron Zircon Zircon Flour is a coarse or fine white mineral powder that is naturally occuring, chemically inert and stable to very high temperatures. Insoluble in water, dilute acids and hot concentrate sulfuric acid. Zircon is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. Hafnium is almost always present in quantities ranging from 1 to 4%. The crystal structure of zircon is tetragonal crystal class. The natural color of zircon varies between colorless, yellow-golden, red, brown, and green. Colorless specimens that show gem quality are a popular substitute for diamond; these specimens are also known as “Matura diamond”. It is not to be confused with cubic zirconia, a synthetic substance with a completely different chemical composition.

Chemical Name: Zircon

CAS Number: 14940-68-2

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Chemical Name
    CAS No.
    14940-68-2
    EC No.
    239-019-6
    Chemical Name

    Zirconium silicate

    Chemical Formula

    ZrSiO4

    Applications & Uses

    Applicable Processes
    Typical Applications

    High temperature applications. Primary source for investment casting shell molds, foundry cores, metal chills, ladle brick, welding rod coatings, abrasive cleaning, ceramics, glass, chemical, refractory bricks, abrasive & mold washes, solid oxide fuel cells and nuclear power plants.

    Properties

    Physical Form
    Chemical Properties
    ValueUnitsTest Method / Conditions
    ZrO2 Content66%
    SiO2 Content32%
    Typical Properties
    ValueUnitsTest Method / Conditions
    Angle of Repose (degrees)30
    Bulk Density115 - 130lbs./ft.3
    Dissociation Temperature3200°F
    Loss on Ignition0.15 - 0.25
    Melting Point2200 - 2550°C
    Mohs Hardness at 20°C7.5 - 8.0
    Molecular Weight183.1g/mol
    Solid Specific Heat0.132
    Specific Gravity4.5 - 4.80
    Thermal Conductivity14.5BTU/sq.ft./hr/°F/in
    Thermal Expansion Coeficent4.2cm/cm/°C

    Packaging & Availability

    Packaging Type
    Packaging
    • 50 Kg.bags