... : White powder.SpecificationItemIndexContent of Barium Sulfate(Calculated by Dry Basis),%≥98.5105·C Volatile matter, %≤0.10content of Water Soluble,%≤0 ... .15Content of Iron(Fe),%≤0.001Whiteness,%≥97.0Oil Absorption,g/100g10.0-20.0Ph Value(100g/h ... copper trigger.Packing:25kg/bag or 50kg/bag barium sulfate 98%min BaSO4