What products can be derived from calcium oxide

Calcium oxide can derive the following products:

1. Calcium hydroxide: Calcium oxide reacts with water to produce calcium hydroxide, which is the most common derivative reaction of calcium oxide. The reaction equation is:. Calcium hydroxide can be used in the construction industry to paint walls and prepare lime mortar; In the field of environmental protection, it can be used for sewage treatment and acid soil improvement; It can be used in the chemical industry to produce bleaching powder, etc.

2. Calcium carbonate: Calcium oxide is first converted into calcium hydroxide, and then carbon dioxide is introduced to generate calcium carbonate. The reaction equation is:. Calcium carbonate is an important inorganic chemical product widely used in industries such as plastics, rubber, papermaking, coatings, and pharmaceuticals.

3. Calcium sulfate: Calcium oxide can react with sulfur dioxide to form calcium sulfite, which can then react with oxygen to produce calcium sulfate. The reaction process is:. Calcium sulfate can be used as building materials, such as making gypsum boards, and can also be used for soil improvement.

4. Calcium chloride: Calcium oxide can react with hydrochloric acid to produce calcium chloride, and the reaction equation is:. Calcium chloride can be used for road snow melting, desiccant, refrigerant, etc. It can also be used as a stabilizer, coagulant, etc. in food processing.

5. Calcium carbide: Calcium oxide can react with coke at high temperatures to produce calcium carbide, also known as calcium carbide. Calcium carbide is an important chemical raw material that can be used to produce acetylene gas, etc.

6. Bleach powder: After converting calcium oxide into calcium hydroxide, it can be reacted with chlorine gas to produce bleach powder. The main component of bleaching powder is calcium hypochlorite, which has strong oxidizing properties and can be used to bleach paper, fabrics, etc. It is also used for disinfection and sterilization of swimming pools, drinking water, etc.

7. Soda ash: In industrial production, calcium oxide can participate in the preparation process of soda ash (sodium carbonate), but this is usually a complex multi-step reaction process.

8. Calcium oxide expansion agent: After special modification treatment, calcium oxide can be used as an expansion agent in building materials to compensate for the shrinkage of concrete and improve its crack resistance.