Calcium Carbonate

Calcium carbonate is a white, odorless, crystalline solid that occurs naturally as limestone, chalk, and calcite; it is non-volatile and decomposes above 825 °C rather than melting. It is an inorganic salt and the most common calcium compound. Calcium carbonate serves as a key raw material in the production of lime (calcium oxide) and precipitated calcium carbonate (PCC), and functions as a filler, pigment, and neutralizing agent across numerous industrial processes. It is widely used in paper manufacturing (as coating and filler), plastics (as reinforcing filler), paints and coatings (for opacity and brightness), construction materials (e.g., cement and mortar additives), and pharmaceuticals (as an antacid and calcium supplement).

Calcium carbonate isprobably the most widely used raw material in thechemical industry. It has numerous applications,primarily to produce cement, mortars, plasters, refractories,and glass as building materials. It is also used toproduce quicklime, hydrated lime and a number ofcalcium compounds.
Calcium carbonate occurs in two forms—hexagonal crystal known as calcite, and orthorhombic form, aragonite. Calcite decomposes on heating at 825°C, aragonite melts at 1,339°C (at 102.5 atm). Density 2.71 g/cm3 (calcite), 2.83 g/cm3 (aragonite); insoluble in water (15mg/L at 25°C); Ksp 4.8x10–9 ; soluble in dilute mineral acids.

This chemical is included in Fine Chemicals - Adhesives & Coating Raw Materials. See more about what is Calcium Carbonate and Calcium Carbonate SDS information.

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