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        2. PRODUCTS
          PRODUCTS
          Ammonium Paratungstate(APT)
          Molecular formula:

          5(NH4)2O.12WO3.5H2O

          Specification:

           

          Class APT-1 APT-2
          Main Content Wo3% ≥88.5 ≥88.5
          Al 0.0005 0.001
          As 0.001 0.002
          Bi 0.0001 0.0001
          Cu 0.001 0.002
          Cd 0.0001 0.0001
          Co 0.001 0.002
          Cr 0.001 0.002
          Cu 0.0005 0.0008
          Fe 0.001 0.003
          Mg 0.0005 0.001
          Mn 0.0005 0.001
          Mo 0.003 0.01
          Na+V1 0.002 0.004
          Ni 0.0007 0.001
          P 0.0007 0.002
          Pb 0.0001 0.0001
          S 0.0007 0.002
          Si 0.001 0.003
          Sb 0.0005 0.001
          Sn 0.0001 0.0001
          Ti 0.001 0.001
          V 0.001 0.001

           

          Class APT-1 APT-2
          Physical Specification
          Loss on Ignition <150% <11.50%
          Specific Gravity of Packaging 1.8-2.3g/cm3 1.8-2.3g/cm3
          Mean Particle Sizes 25-50n 25-50n
          Particle Size on Sieving -40mesh((100%) -40mesh((100%)
          Uses:

          Applied to the manufacture of tungsten trioxide, blue tungsten oxide, tungsten powder, tungsten rods, tungsten filaments,tungsten oxide as well as hard alloy etc.

          Packing: Iron drums with 50 kg net capacity.
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