+ Tiêu chuẩn kỹ thuật:
Barium Carbonate High Purity Specifications: 99.2% BaCO3 (Excellent ) 99.0% BaCO3(First-class) 98.5% BaCO3(Eligible) Main content(on BaCO3 basis) 99.2%min Moisture 0.3%max Total sulphur(on SO4 basis 0.3%max HCI insoluble matters 0.25%max Iron (on Fe basis) 0.004%max Bulk density (g/cm3): 0.95max Fineness(125mesh sieve residue) 0.2%max