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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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