When quicklime (also known as calcium oxide) is exposed to air, it undergoes a chemical reaction called slaking or hydration. This reaction involves the absorption of moisture from the air, resulting in the formation of calcium hydroxide.
The reaction can be summarized as follows:
Calcium oxide + Water → Calcium hydroxide
Quicklime, being a highly reactive compound, reacts rapidly with water vapor in the air, generating heat and releasing steam. This exothermic reaction produces calcium hydroxide, which is a white, powdery substance also known as hydrated lime or slaked lime.
Additionally, the reaction between quicklime and water also releases small amounts of calcium hydroxide dust into the air. This dust can be harmful if inhaled, as it has an alkaline nature and can cause irritation or burns to the respiratory system. Hence, it is important to handle quicklime with caution and in well-ventilated areas.
What happens when quick lime is exposed to air
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