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  • 安達有色金屬

    Anda Nonferrous Metals

    PRODUCTS

    Anda Nonferrous Metals

    Tungstic acid

    Chemical formula: H2WO4

    Properties: yellow powder, insoluble in water, soluble in caustic soda, soda ash, ammonia solution can generate tungstate.

    Specifications:

    Grade
    H2WO4-1
    H2WO4-2
    WO3 (%)
    88.0-91.0
    88.0-91.0
    Impurity content
    (as WO)
    not more than
    %
    Al
    0.001
    0.002
    As
    0.005
    0.005
    Bi
    0.001
    /
    Ca
    0.002
    0.005
    Co
    0.002
    /
    Cu
    0.001
    /
    Fe
    0.001
    0.003
    K+Na
    0.015
    0.020
    Mg
    0.001
    0.002
    Mn
    0.001
    /
    Mo
    0.006
    0.01
    Ni
    0.001
    /
    P
    0.001
    0.005
    Pb
    0.0001
    /
    S
    0.001
    0.003
    Si
    0.003
    0.005
    Sb
    0.001
    /
    Sn
    0.0005
    0.001
    Ti
    0.001
    0.002
    V
    0.001
    0.002

    Uses: Used in the production of tungsten powder, tungsten bar, tungsten wire, tungsten carbide and other chemical products.
    Packing: 25kg Cardboard barrel or plastic woven bag .
    Not: special specifications are negotiable.

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