Yuejiang Brand- super-fine barium sulfate is produced with advanced production techniques, processed with phiscal and chemical means, has good whiteness, high purity dispersibility and compatibility; can absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc. 1. Main properties and features Chemical substances Barium sulphate (BaSO4)/ super-fine type Appearance white powder Packing 25kg woven bag, 1000kg sack Main features adopt advanced production techniques, processed with phiscal and chemical means, has good whiteness, high purity Range of application can absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc. 2. Quality Index NO. Item Unit Index First Quality Qualifier 1 Barium sulphate content % ≥98 ≥95 2 105 °C volatile matter % ≤ 0.3 ≤0.5 3 Water solubles content % ≤0.2 ≤0.5 4 Water content % ≤0.15 ≤0.15 5 pH-value of aqueous suspension 6.5-8.0 6.5≤8.5 6 Oil absorption(depend on different fineness) % g/100g 10-30 10-30 7 Fe content % ≤0.003 ≤0.05 8 Whiteness % 92-96 90-94 fineness: 325-mesh, 400-mesh, 600-mesh, 800-mesh, 1250-mesh, 2000-mesh, 3000-mesh, 6000-mesh ,8000-mesh, 12500-mesh, 15000-mesh (Fineness can be custom-made upon client's request)