碳酸钙

Calcium Carbonate Physical and chemical properties: Molecular formula: CACO3 Molecular weight: 100.09 Density: 2.70-2.95 White crystal or powder Its difficult solubilize in water and release CO2 in acid. Method of manufacture: Ca(OH)2+CO2=CaCO3+H2O Ca(OH)2+Na2CO3=CaCO3+2NaOH Use: Used in made cement, ceramic, lime, CO2,chalk, artificial stone, and can be used as pigment, filler, mixture medium, rub agent, sugar clarifying agent; also it can be used as filler of rubberplastic; as feed additives, vector of veterinary drugs. In medicine, it can be used to made acid drugs. Item: precipitate light-CACO3 325mesh ItemHG/T2226-2000ExcellentFirst gradeGoodResultCalcium carbonate(%≥)98.0 97.0 96.0 98.5 Hydrochloric acid can not be objects (%≤)0.100.20 0.30 0.20 Fe (%≤)0.080.100.120.08Mn (%≤)0.0060.0080.0100.006Heavy metal total (%≤)202020passPHPH value9.0-10.09.0-10.59.0-11.010.5Whiteness ≥90.090.090.092.7AppearanceWhite powder