... Rolling drums,heavy putting down and colliding are not allowed to avoid the spark leads to explosion.Property: Grey, brown ... industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, acetic acd, ... trichloride ethylene etc. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals.Packing: 50kgs/100kgs new iron ...