Calcium oxide, sometimes known as quicklime, is a chemical substance with the formula CaO. It is a white, crystalline solid at room temperature and is widely utilized in various industries due to its versatile properties. Calcium oxide is composed of one calcium (Ca) atom and one oxygen (O) atom, forming a simple and stable ionic compound. At room temperature, calcium oxide exists as a white, odorless solid with a high melting point. Quicklime is highly reactive with water, producing heat in an exothermic reaction. This property is exploited in various applications, including its use in traditional lime kilns.

The primary method for producing calcium oxide is through the thermal decomposition of calcium carbonate (CaCO3) in a process known as calcination. This reaction releases carbon dioxide (CO2) and results in the formation of calcium oxide. Traditional lime kilns have been historically used for the calcination process. Limestone, a common source of calcium carbonate, is heated in these kilns to produce quicklime. Contemporary methods involve advanced rotary kilns and vertical kilns, which enhance efficiency and precision in the production of calcium oxide.

CAS NO :- 1305-78-8

USES AND APPLICATIONS FOR CALCIUM OXIDE

• Used in construction
• Used in water treatment
• Used in the steel industry
• Used in the chemical industry
• Used in soil amendment
• Used in sugar refining
• Used as a preservative