Calcium carbonate is commonly known as limestone, limestone and stone powder. Calcium carbonate is an inorganic compound, alkaline, basically insoluble in water and soluble in hydrochloric acid. It is one of the common substances on the earth, which generally exists in aragonite, calcite, limestone and other rocks, and is also the main component of some animal bones or shells.

According to different production methods, calcium carbonate can be divided into heavy calcium carbonate, light calcium carbonate, colloidal calcium carbonate and crystalline calcium carbonate.

Calcium carbonate is widely used. In modern industry, calcium carbonate is the main raw material for manufacturing cement, lime and calcium carbide. After superfine grinding, high-quality calcium carbonate is widely used for manufacturing paper, rubber, paint, coating, medicine, cosmetics, feed, sealing, bonding and polishing products.

Calcium carbonate is recommended to be stored in a cool, dry and ventilated place, not with toxic chemicals, liquid acids, etc., and should be protected from moisture when stored.