... ,2000mesh 3) 2500 mesh,6000 mesh, Barium sulfate( super fine & precipitated)Detailed DescriptionCAS No.: 7727-43-7 Molecular Formula ... 39 Properties: Colorless orthorhombic system crystalline or white amorphous powder, relative density 4.5015, melting point 1580, ... conglomerate.Spec. Re: Super-fine barium sulfate powderThe specification of each grade:Super Fine Barium Sulfate Powder (AY-45um)1) ...