Barium Sulphate,white powder ,mainly used in paint .the quality is very good. Barium SulphateSPECS:Main content:98.0% minPH value:6.5-8Water soluble :0.2% maxIron(on Fe basis) :0.006% maxMoisture:0.2% maxFineness(325mesh sieve residue) :0.1% maxOil absorption:15-18%Usage: Used in powder coating, painting, ink, rubber, pigment, storage battery, plastics, paper, etc. Barium Sulphate