acetylene

Borrowed from French acétylène, coined by French chemist Marcellin Berthelot, from acetyl.

• IPA^(key): /ə ˈsɛt əl ˌin/

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acetylene (countable and uncountable, plural acetylenes)

1. (organic chemistry, countable) Any organic compound having one or more carbon–carbon triple bonds; an alkyne.
2. (organic chemistry, uncountable) Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless, odorless gas, formerly used as an illuminating gas, but now used in welding or metallurgy.

Chemical Structure of acetylene

• (IUPAC name): ethyne

• acetylene black
• acetylene torch
• polyacetylene

• acetylide