pile of quicklime from Jemelle

What is Quicklime?

Quicklime, CaO (calcium oxide), also called hical lime, is produced by the calcination of limestone, CaCO3 (calcium carbonate). Crushed limestone is heated to around 1,100 degrees Celsius in kilns to produce quicklime. The heating of limestone releases carbon dioxide, leaving calcium oxide (CaCO3 produces CaO + CO2). 

Quicklime has a wide range of uses, including in the production of iron and steel, paper and pulp production, treatment of water and flue gases and in the mining industry. 

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