Calcium carbonate is a solid white crystals, odorless and tasteless, insoluble in water, ethanol and easily soluble in acids with the release of carbon dioxide. It is an inorganic chemical compound, a salt of carbonic acid and calcium. In nature, it occurs in the form of minerals, differing in crystal structure - widespread calcite, aragonite and vaterite, is the main constituent of limestone, chalk and marble, one of the most common compounds on Earth.
Density (calcite) 2, 74 g / cm³, (aragonite) 2.83 g / cm³.
Calcium carbonate is obtained by the interaction of milk of lime with carbon dioxide or calcium chloride (CaCl2) with sodium carbonate (Na2CO3) in an aqueous solution.
Calcium carbonateCalcium carbonate (calcium carbonate,