Preparation of Alkynes From Calcium Carbide (Industrial Preparation)

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$$\text{CaC}_2 + 2\text{H}_2\text{O} \to \text{HC}\equiv\text{CH} + \text{Ca(OH)}_2$$

Concept: Hydrolysis of calcium carbide ($$\text{CaC}_2$$) generates ethyne ($$\text{HC}\equiv\text{CH}$$) gas along with calcium hydroxide.

  • $$\text{CaC}_2$$ contains the dicarbide anion ($$[\text{C}\equiv\text{C}]^{2-}$$).
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