Manufacturer of Calcium Carbide, Packin:100kg/drum, 50kg/drum ... SIZE 25-50MM 50-80MMUses: Used in the generation of acetylene gas for welding, and as a reagent. Property ... black solid, purple when its purity is higher, the specific gravity is 2.22(18), melting point is 2300 , ... trichloride ethylene etc. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals.Packing: 50kgs ...