Calcium carbonate is a chemical compound, with chemical formula CaCO3. It is commonly used medicinally as a calcium supplement or as an antacid. Calcium carbonate is the active ingredient in agricultural lime. Technologies used to produce calcium carbonate are technology based on crystal morphology and Acid Tolerant Technology. The use of Precipitated Calcium Carbonate in paper is forecast to rise by an average of 5% a year and reach 7.2Mt by 2010. Overall demand for PCC is forecast to rise from 7.75Mt in 2004 to 9.7Mt by 2010, an average rise of around 4.4%py.
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