Speight, James G. Western Research Institute, Laramie, Wyoming.
Last reviewed:May 2019
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- Octane number
- Automotive gasoline
- Aviation gasoline
- Links to Primary Literature
- Additional Readings
A mixture of volatile, flammable liquid hydrocarbons derived from petroleum and used as a fuel for internal-combustion engines. Gasoline is a mixture of hydrocarbons whose boiling point is below 200°C (390°F), obtained in the fractional distillation of petroleum. Gasoline is a liquid at ambient temperature, but it volatilizes readily in air to form a flammable mixture. Gasoline is composed primarily of the alkanes (paraffins) hexane, heptane, and octane, plus small amounts of higher-boiling alkanes. See also: Alkane; Distillation; Internal combustion engine; Petroleum
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