A flammable hydrocarbon gas that is a constituent of petroleum and is used in bottled form as a fuel. It is a member of the alkane series. See also isobutane.
- Chemical formula: CH3CH2CH2CH3.
- The remaining butane and methane are recycled and reused to fuel the process.
- Sudden sniffing death is particularly associated with abuse of butane, propane and chemicals in aerosols.
- He filmed them apparently putting butane gas into a bottle and setting fire to it.
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