Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used

chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature.

The broadly used term lime connotes calcium-containing inorganic materials, in which

carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminum, and iron

predominate. By contrast, quicklime specifically applies to the single chemical compound

calcium oxide.


1-Steel of iron and steel and metal industries

2- Petrochemical industry

3. Glass industry

4. Painng industries

5- Consumption in refractory products