Barium Sulphate Precipitated SPECS: Main content: 98.0% min PH value: 6.5-8 Water Soluble: 0.3% max. Iron(on Fe basis) :0.006% max Moisture:0.2% max Whiteness(MgO 100%):95% min. Oil absorption:15-18%Sieve Residue(0.045um): 0.1% max. Usage: Used in powder coating, painting, ink, rubber, pigment, storage battery, plastics etc