Barytes Powder is a white crystalline powder that is used as a pigment in paints and as weighted filler for paper, cloth and rubber. Also, it is used in Television picture tubes, ceramics, optical glasses & porcelain enamel, and as a fundamental material for barium carbonate. PHYSICAL PROPERTIES : Specific Gravity - 4.4 Hardness - 3 to 3.5 (Mohs) Whiteness (Brightness) - 94 Oil Absorption Value - 10 Moisture and Volatile Matter - Max 0.5% by Wt. (105 deg. C) Water Soluble Matter - Max 0.5% PH of 10% Slurry - 9.3 Refractive Index - 1.64 Bulk Density - 1.8 CHEMICAL COMPOSITION : BaSO4 : 97% (?2%) (Typical) Sio2 : 1% Fe2O3 : 0.10% Al2O3 : 0.05% CAO : 0.20% MgO : 0.09% LOI : 0.65% INDUSTRIAL APPLICATIONS: Paints, Rubber, Glass, Paper, Chemicals, Construction, Coatings, Putties, Primers, Plastics, etc.