... , turns into acetylene and calcium hydroxide and releases heat.Use: Calcium carbide is an important basic ... organic synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, ... chloroprene rubber, calcium cyanamide, acetic acd, acetaldehydr, ethylacetate, cyanide acetate ... acetylene gas for welding, and as a reagent,Calcium Carbide