Calcium Carbonate

Physical and chemical properties:
Molecular formula: CACO3
Molecular weight: 100.09
Density: 2.70-2.95
White crystal or powder
It's difficult solubilize in water and release CO2 in acid.
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 rubber\plastic; As feed additives, vector of veterinary drugs.
In medicine, it can be used to made acid drugs.