Product description: Molecular Formula: BaSO4 Molecular Weight: 233.39 CAS No: 7727-43-7 Specifications: BaSO4 content 98% min Oil Absorption 30% max White 96% min Iron (Fe) 0.004% max Volatile matter in 105℃ 0.3% max Ph value 6.5-9.0 Density 4.5g/cm3 Fineness (45μm) 0.2% max Applications: Paint, printing ink, special glass, glazed and wall paper, filler textiles, linoleum paper, rubber, etc. Packing:In 25kgs pp woven bags.