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                                      Tungstenic acid
                                      Molecular formula:

                                      H2WO4

                                      Properties: yellow powder
                                      Specification:

                                       

                                      Tungsten Assay ≥88.0% AS ≤0.005%
                                      AI ≤0.001% Ca ≤0.002%
                                      Bi ≤0.001% Cu ≤0.001%
                                      Co ≤0.002% K+Na ≤0.015%
                                      Fe ≤0.001% Mn ≤0.001%
                                      Mg ≤0.001% Ni ≤0.001%
                                      Mo ≤0.006% Pb ≤0.0001%
                                      P ≤0.001% Si ≤0.003%
                                      S ≤0.001% Sn ≤0.0005%
                                      Sb ≤0.001% V ≤0.001%
                                      Ti ≤0.001%    
                                      Uses:

                                      used in the production of tungsten powder, tungsten bar, tungsten wire, alloy and other chemicals

                                      Packing: Net 25kg,plastic bag lined carton or 50kg in plastic bag lined metal pail.
                                      Sign: product name, gross weight , net weight , assay , Lot , factory.
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