Preparation of Calcium Hydroxide From quick lime Calcium hydroxide is prepared on a commercial scale by adding water to quicklime. This process is called slaking of lime. CaO + H2O ----> Ca(OH)2 From calcium chloride It is also obtained by treating calcium chloride with caustic soda. Properties of Calcium Hydroxide 1) It is a white amorphous powder … [Read more...] about Calcium Hydroxide
slaking of lime
Calcium Oxide
Calcium Oxide Preparation of Calcium Oxide Calcium oxide is called quick lime. It is prepared by heating limestone in a rotatory kiln at 1070-1270 K. CaCO3 ⇔ CaO + CO2 ΔH = 179.9 KJ Since the reaction is reversible, therefore, the carbon dioxide is removed as soon as it is formed to enable the reaction to proceed to completion. The temperature is not allowed to … [Read more...] about Calcium Oxide