Chemical Name: CaO (Calcium Oxide) Purpose of : Some Oxygen Steel Production as Sulfurers, Aluminia in the production of Siloxine Siloxane (Bayer Process), Low Carbon Ferrochromium Production as a slag, Production of GasBetone, Calcium Silicate Production, Diatomite Or Silica, Calcium Carbonate Production in Sulfate Process in Sodium Hydroxide Regeneration, Sulfur Process in Calcium Bisulfite Production, Filling and Coating, Stabilization of Industrial Wastes, such as Sulfite / Sulfate Sludge Oil Wastes, for Stabilization of Animal Wastes and Stabilization of Sludge from Domestic Wastewater Treatment Plants, Production of Cynamide (CaC2) in Carbide (CaC2) and Carbide Nitrogen Reaction with Nitrogen Coke and Lime at High Temperature Reaction, In the production of enamel porcelain ware, PH Adjustment to Agricultural Soil,