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Calcium Carbonate is an inorganic compound, common name: limestone, calcite, marble, chalk, aragonite, white marble, etc. Relative molecular weight is 100.09, density: 2.93/m3, melting point: 825°C, it is the main component of limestone and calcite, and its properties are white crystal or powder. It often exists in nature in three crystal forms: calcite, aragonite and vaterite. . Since the development of Calcium Carbonate industry, the ore reserves are abundant, widely distributed, and affordable; powder products are non-irritating, non-toxic and tasteless, with good color and high whiteness, so they are widely used.

Heavy Calcium Carbonate is a product made from calcite, marble, chalk, shells, limestone, etc., through mechanical crushing and ultrafine grinding. Heavy calcium has the characteristics of wide source of raw materials, high whiteness, low oil absorption value, good applicability, and low price. It is currently one of the most widely used and used inorganic non-metallic mineral powders.

Currently, Heavy Calcium Carbonate has several major categories such as fine powder, ultrafine powder, surface modified (active) powder, and ultrafine slurry products for papermaking, and more than 10 kinds of special heavy calcium products with different fineness and surface modification activation. , Widely used in papermaking, plastics, rubber, coatings, inks, daily chemicals, food and other industrial fields.