... :2008, is a leading manufacture & exporter of Calcium Carbide, export Calcium Carbide 295L/Kg, 50-80mm/25-50mm in high quality ... basic material in organic synthesis industry, Acetylene obtained from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium ... for cutting and welding metals.Property: Grey, brown or black solid, purple when its purity is higher, the specific gravity ...