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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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