... . formula : C2CaMW : 64.10CAS, introductory-20-7Acetylene stonesnature : industrial gray, tan or black solid, with a higher calcium carbide ... nature very lively and heated with water decomposition of acetylene gas, and calcium hydroxide, and release a lot ... , octanol, 3 cyanide ethylene, ethylene four cyanide, acetaldehyde, acetylene black, lime nitrogen. While the amount is the largest production ...