PIle of hydrated lime from Ensuès

What is Hydrated Lime?

Hydrated lime, Ca(OH)2 (calcium hydroxide) is a strong alkali formed when calcium oxide reacts with water. This reaction generates heat. Depending on the amount of water used, calcium hydroxide can either be a dry hydrate (dry powder), a paste (putty lime) or a liquid milk of lime also called lime slurry (dry suspension in water). 

Hydrated lime is used in many industrial applications for a range of tasks in chemical manufacturing, water and waste water treatment, acid neutralization and other environmental applications. 

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