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                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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