High Grade Barite Powder 97% for Painting BaSO4: 97%Min Whiteness:88 ... used as a filler in the manufacture of linoleum, oilcloth, paper and textile manufacturing, rubber, and plastics. Finely ground barite ... of barium sulfate, zinc sulfide, and zinc oxide. 1. Drilling Grade BaSO4: 92% Min. Hg: 1 PPM Max. CD: 3 ... % Max. Size: 0 - 200 MM 90% Min. 2. Chemical Grade BaSO4: 95% Min. Fe2O3: 0.5%Max. SiO2: 2%Max ...