I need to provide accurate information in relation to the production process of calcium oxide from calcium carbonate.

$$\ce{CaCO3 -> CaO + CO2}$$


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From wikipedia article of calcium oxide

Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashells, that contain calcium carbonate ($\ce{CaCO3}$; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F), a process called calcination or lime-burning, to liberate a molecule of carbon dioxide ($\ce{CO2}$), leaving quicklime.

$$\ce{CaCO3(s) → CaO(s) + CO2(g)}$$

The quicklime is not stable and, when cooled, will spontaneously react with $\ce{CO2}$ from the air until, after enough time, it will be completely converted back to calcium carbonate unless slaked with water to set as lime plaster or lime mortar.


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