Question

How is quick lime prepared on a commercial scale ? How is it converted into slaked lime ?

Answer 1

Quick lime prepared on a commercial scale by heating lime stone CaCo3 . Heat remove the carbon dioxide from lime stone and give CaO (quick lime) .when quick lime is added to water it form slaked lime

Answer 2

In chemical reaction, when Quick lime or burnt lime (calcium oxide) is a white crystalline solid and having alkaline nature.  

Quick lime can be obtained from Calcium carbonate $CaCO_{3}$ by heating it up to 600-degree C. It is also a reversible process.

When it is added to water (dihydrogen oxide), the following reaction takes place:

$CaO(s)+H_{2}O\rightarrow Ca(OH)_2+energy$

Slaked lime (calcium hydroxide) is formed with liberation of heat.

The process is a combination and exothermic reaction.