Calcium Carbide for Acetylene Production

Calcium carbide is an inorganic compound with the chemical formula CaC2, which is the main component of calcium carbide. It is a white crystalline powder, and industrial products are gray-black blocks with purple or gray cross sections. When it meets water, it immediately reacts violently, generating acetylene and releasing heat.

English: Calcium Carbide

Molecular formula: CaC2

Molecular weight: 64.10

Cas No.: 75-20-7

Hs No: 28491000.

About 60% of calcium carbide is used in chemical production, and the remaining 40% is used in metal welding and cutting. Calcium carbide can be used as raw material to produce a series of chemical products, such as PVC resin, polyvinyl alcohol, vinyl acetate, neoprene, butanol, octyl Chemicalbook alcohol, ethylene cyanamide, ethylene tetracyanogen, acetaldehyde, acetylene black, lime nitrogen and so on. The largest consumption is the production of PVC resin, accounting for 60% of the consumption of calcium carbide for chemical industry. Calcium carbide powder is irritating and can damage the skin and respiratory system.

1. Acetylene generated by the reaction of calcium carbide with water can synthesize many organic compounds such as synthetic rubber, artificial resin, acetone, ketene, carbon black, etc. At the same time, acetylene-oxygen flame is widely used in metal welding and cutting.

2. When powdered calcium carbide and nitrogen gas are heated, they react to form calcium cyanamide, that is, lime nitrogen.

3. Calcium carbide itself can be used as a desulfurizer in iron and steel industry.

4. Production of polyvinyl chloride (PVC), and production of PVC by calcium carbide method uses calcium carbide (CaC2).

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