Hydrated Lime By Lime Mineral & Chemicals

Hydrated Lime is a chemical compound with the chemical formula Ca(OH)2. Hydrated Lime is a colourless crystal or white powder, and is obtained when calcium oxide (called lime or quicklime) is mixed, or "slaked" with water.

Calcium hydroxide is produced commercially by treating lime with water:

CaO + H2O a Ca(OH)2
In the laboratory it may be prepared by treating an aqueous solution of any calcium salt with an alkali.

Because of its weak basic properties, calcium hydroxide has many and varied uses:

A flocculants, in water and sewage treatment and improvement of acid soils
An ingredient in whitewash, mortar, and plaster
In the tanning industry for neutralization of acid, the liming of hides and skins and the flocculation of wastewater
In the petroleum refining industry for the manufacture of additives to oils (salicatic, sulphatic, fenatic)
In the chemical industry for manufacture of calcium stearate
Used in the separation of sugar from sugar cane in the sugar industry