出典:Wiktionary
出典:『Wiktionary』 (2025/10/08 18:52 UTC 版)
IUPAC nomenclature, from but- (“four carbon prefix”) + -ane (“alkane suffix”), the former is derived from the same stem as the foul-smelling carboxylic acid liberated in rancid butter, "butyric acid", hence cognate with butter.
butane (countable and uncountable, plural butanes)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/20 15:56 UTC 版)
Butane is a gas with the formula C4H10 that is an alkane with four carbon atoms. The term may refer to any of two structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, butane refers only to the unbranched n-butane isomer; the other one being called "methylpropane" or isobutane.