... industries.1.SPECIFICATION:Chemistry analyze :CaCO3:98.5%, MgCO3:0.8%, Fe2O3:0.3% , insluble of hydrochloric acid:0.3%,Physics ... .7(2)/g--2.5(2)/g, average particle size:8.0(um)--1.3(um),maximum particle size:44um-17um ... absorption:27(ml/100g)--36(ml/100g), Moisture:0.3%, oil absorption:23(ml/100g)--31(ml/100g) ,PH:9,bulk density ...