单词	ethane
释义	ethane /ˈiːθeɪn / /ˈɛθeɪn/ noun [mass noun] Chemistry A colourless, odourless, flammable gas which is a constituent of petroleum and natural gas. It is the second member of the alkane series. Chemical formula: C2H6. It consists mainly of methane, the simplest hydrocarbon, as well as small amounts of heavier, more complex hydrocarbons such as ethane, butane and propane.... The gas component may be ethane, propane, butane, carbon dioxide, or hydrogen sulphide, but is most commonly methane. Some familiar examples include methane, ethane, propane, and kerosene. Origin Late 19th century: from ether + -ane2. Rhymes methane
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