... . Heavy& Ground CaCo3 1.Product Introduction:Natural heavy calcium carbonate selects natural,snow-white calcite as raw material,and processes through domestic ... ), % ≥94PH(10% Soliquit)8-10105°C Volatitle, % ≤0.3Insoluble substance in hydrochloric acid, % ≤1.0Moisture content, % ≤0.5Bulk density, g/cm3 ...