... % ≥94PH(10% Soliquit)8-10105°C Volatitle, % ≤0.3Insoluble substance in hydrochloric acid, % ≤1.0Moisture content, % ≤0.5Bulk density, g/cm3 ... ≤0.87Specific Surface, cm2/g ≤8000Settling value, ml/g ≥---Top Cut(D98), μm ≤35Average Grain(D50), μm ≤16Fe, % ≤0 ... :It is widely used in paper-making,plastic,rubber,paint,building material,etc. Mesh 600 Natural Heavy Calcium Carbonate in rubber industry