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          1. 安達有色金屬

            Anda Nonferrous Metals

            PRODUCTS

            Anda Nonferrous Metals

            Tungsten trioxide

            Chemical formula: WO3

            Properties: light yellow powder, insoluble in water and acid (except for HF), can slowly dissolved in concentrated alkali solution.

            Specifications:

            Grade
            FWO3-1
            FWO3-2
            FWO3-3
            WO3 (%)≥
            99.95
            99.9
            99.5
            Impurity content
            (as WO)
            not more than
            %
            Pb
            0.0005
            0.001
            /
            Bi
            0.0005
            0.001
            /
            Sn
            0.0007
            0.001
            /
            Sb
            0.001
            0.001
            /
            As
            0.002
            0.002
            0.010
            Fe
            0.001
            0.005
            0.010
            Al
            0.001
            0.001
            0.002
            Si
            0.002
            0.003
            0.008
            Ni
            0.0007
            0.002
             
            Ca
            0.002
            0.003
            (Ca+Mg)
            0.015
            Mg
            0.001
            0.004
            (Mg+Ca)
            0.015
            K
            0.002
            0.002
            (K+Na)
            0.015
            Na
            0.002
            0.004
            (Na+K)
            0.015
            Cu
            0.0007
            0.001
            /
            Mn
            0.001
            0.002
            /
            Mo
            0.005
            0.03
            0.10
            P
            0.0007
            0.004
            0.015
            S
            0.001
            0.001
            0.007
            Chlorination residue
            /
            /
            0.07
            Loss on ignition (%)
            0.5
            0.5
            0.5
            Sieving size (mesh)
            -40 100%
            -40 100%
            -40 100%
            Bulk density g/cm3
            0.5-2.5

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

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