... is raw material to make ethylene, chloroprene rubber, calcium cyanamide, aceticacid, acetaldehydr, ethylacetate, cyanideacetate, dicyandiamide, acetone, octanol, ... water, turns into acetylene and calcium hydroxide and release heat. Calcium carbide Commodity: Calcium carbide Molecular formula: CaC2 Molecule Weight ... 75-20-7 UN NO. 1402 We can supply calcium carbide 4-25mm, 25-50mm, 50-80mm, 70- ...