... products have the same effect. Heavy& Ground CaCo3 1.Product Introduction:Natural heavy calcium carbonate selects natural,snow- ... % Soliquit)8-10105°C Volatitle, % ≤0.3Insoluble substance in hydrochloric acid, % ≤1.0Moisture content, % ≤0.5Bulk density, g/cm3 ≤0 ... :It is widely used in paper-making,plastic,rubber,paint,building material,etc. Mesh 600 Natural Heavy Calcium Carbonate in rubber industry