A colorless, highly flammable or explosive gas, C2 H2 , used for metal welding and cutting and as an illuminant.
A colorless, poisonous, highly flammable gaseous hydrocarbon, HC⋮CH, produced by the reaction of water and calcium carbide: used in organic compound synthesis, for lighting, and with oxygen in welding: the simplest alkyne.
Webster's New World
(organic chemistry, countable) Any organiccompound having one or more carbon–carbon triple bonds; an alkyne.
From Frenchacétylène, coined by French chemist Marcellin Berthelot, from acetyl.
Acetylene Sentence Examples
For example, ethylene, C2H4 j is formed with absorption of 16200 cal., acetylene, C 2 H 2, with absorption of 59100 cal., and liquid benzene, C 6 H 6, with absorption of 9100 cal.
It will be noticed that compounds containing two double linkages will have the same general formula as the acetylene series; such compounds are known as the " diolefines."
Passed through a red-hot tube, benzene vapour yields hydrogen, diphenyl, diphenylbenzenes and acetylene; the formation of the last compound is an instance of a reversible reaction, since Berthelot found that acetylene passed through a red-hot tube gave some benzene.
It resembles acetylene in yielding metallic derivatives with ammoniacal copper and silver solutions.
They found that if liquid acetylene in a steel bottle be heated at one point by a platinum wire raised to a red heat, the whole mass decomposes and gives rise to such tremendous pressures that no cylinder would be able to withstand them.