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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.
Guidechem assumes no responsibility or liability for any errors or omissions in the content of this site. The information contained in this site is provided on an “as is” basis with no guarantees of completeness, accuracy, usefulness, fitness for purpose or timeliness.
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