Item-barium sulfate: 198-bt Barium sulfate baso4: 98% Volatile matter at 105 c : 0.2% Ph value: 8.6 Lightness l*: 99 Mean grain size [d50]: 1.5 m Density: 4.4g/ml Conductivity: 260s/cm Oil absorption: 13-15g/100g 325 mesh sieve residue(45um ): 0.02%. 25kg/bag.
