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What is Calcium Carbide?

Calcium carbide, also known as calcium cyanamide, is an inorganic compound that reacts with water to produce acetylene and calcium hydroxide. Because of its unique properties, calcium carbide has found applications in manufacturing, electronics, chemical manufacturing, medicine and agriculture. Calcium carbide (CaC2) or acetylene black is made from the reaction of lime and coke, this chemical compound is primarily used as a source of acetylene and as an agent in the production of other chemicals such as calcium cyanamide and acetic acid.

Due to its chemical characteristics, calcium carbide can be made into many useful products such as antifreeze, dry ice, masonry cement, welding rods, and molds. Calcium carbide is an inorganic compound with chemical formula CaC2. This white solid is used as a reagent in industrial chemistry, and prepared by reaction of lime and coke at 1000 Â°C. It reacts with water and carbon dioxide to give acetylene: CaC2 + CO â†’ 2 acetylene gas + CaCO. This exothermic reaction is exploited industrially on a large scale: about 10,000 tonnes are produced annually. The resulting carbide slurry has been used as welding fuel in acetylene lamps, which have been widely employed for many purposes including mining, construction and camping.

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Properties of Calcium Carbide:

It is used in the production of calcium hydroxide and acetylene.
It is used in the production of polyvinyl chloride as acetylene the derivative of calcium carbide can be used as a raw material for the production of PVC.
It is used to produce calcium cyanamide.
It is used in the removal of sulphur from iron. The removal of sulphur from any material is called desulphurization.

It is used in lamps such as carbide lamps. In the early days, it was used as headlights of automobiles.
Used as a ripening agent like ethylene.
It is used in bamboo cannons as well as big-bang cannons.
It is used as a deoxidizer i.e it helps in the removal of oxygen during the manufacturing of steel.

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Production Processes:

There are several production processes of calcium carbide. The most common process is by carbothermic reaction. It is also produced by acetylene reduction of lime and calcium oxide, aluminium reduction of calcium carbide, heating limestone with coal in air, dry distillation of some clays, etc. Production Processes: There are several production processes of calcium carbide.

The most common process is by carbothermic reaction. It is also produced by acetylene reduction of lime and calcium oxide, aluminium reduction of calcium carbide, heating limestone with coal in air, dry distillation of some clays, etc.

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Market Outlook:

The calcium carbide market was estimated at 27.5 million tons in 2020, and the market is projected to register a CAGR of about 4% during the forecast period (2021-2026). The demand for Calcium Carbide is growing due to its superior mechanical properties that meet todayâ€™s most demanding thermal, mechanical, and electrical performance requirements across various applications.

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Additionally, the use of calcium carbide not only simplifies and diminish the cost of synthesis, but also avoids the problems associated with transportation and sorting that makes it as a useful product across pharmaceuticals, cosmetics, plastics and steel industries. The demand for Calcium Carbide is growing due to its superior mechanical properties that meet todayâ€™s most demanding thermal, mechanical, and electrical performance requirements across various applications.

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