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      1. 貝斯特鉬制品

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        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 -40目(100%) -40目(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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