Calcium oxide (CaO) supplier Distributor Manufacturer in Kolkata West Bengal india
East India Chemicals is your company for quality chemicals from world-class suppliers Manufacturer of Calcium oxide (CaO) to meet your formulation needs in kolkata India.
East India chemicals is one of the leading manufacturer, supplier and exporte of Marine chemical, Construction Chemicals,Miscellaneous Industrial SuppliesOil & Gas,PaintPaper Manufacturing, Pharmaceuticals Plastic Manufacturing,Printing Inks,Soaps & DetergentsTextiles,Water Treatment & Pool allied products and services in kolkata India.
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, aluminium, and iron predominate. By contrast, quicklime specifically applies to the single chemical compound calcium oxide. Calcium oxide that survives processing without reacting in building products such as cement is called free lime.
Uses
The major use of quicklime is in the basic oxygen steelmaking (BOS) process. Its usage varies from about 30 to 50 kilograms (65–110 lb) per ton of steel. The quicklime neutralizes the acidic oxides, SiO2, Al2O3, and Fe2O3, to produce a basic molten slag.
Small quantities of quicklime are used in other processes; e.g., the production of glass, calcium aluminate cement, and organic chemicals
Petroleum industry:
Water detection pastes contain a mix of calcium oxide and phenolphthalein. Should this paste come into contact with water in a fuel storage tank, the CaO reacts with the water to form calcium hydroxide. Calcium hydroxide has a high enough pH to turn the phenolphthalein a vivid purplish-pink color, thus indicating the presence of water.
Paper:
Calcium oxide is used to regenerate sodium hydroxide from sodium carbonate in the chemical recovery at Kraft pulp mills.