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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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