... organic synthesis industry, Acetylene obtained from calcium carbide is raw material to make ethylene, ... , turns into acetylene and calcium hydroxide and release heat. Calcium carbide Commodity: Calcium carbide Molecular formula: CaC2 Molecule ... -20-7 UN NO. 1402 We can supply calcium carbide 4-25mm, 25-50mm, 50-80mm, ... Black, green or gray new drum filling with N2, 50kg or 100kg each net weight Max ...