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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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