... calcium carbonate selects natural,snow-white calcite as raw material,and processes through domestic advanced grinding equipment ... ≥94PH(10% Soliquit)8-10105°C Volatitle, % ≤0.3Insoluble substance in hydrochloric acid, % ≤1.0Moisture content, % ≤0.5Bulk density, ... 38Activation, % ≥---AppearancePOWDER3.Main Applicantion:It is widely used in paper-making,plastic,rubber,paint,building material,etc. Mesh ...