AskDefine | Define isooctane

User Contributed Dictionary



  1. any isomer of n-octane; especially 2,2,4-trimethylpentane, used as a reference in the determination of the octane number of fuel

Extensive Definition

2,2,4-Trimethylpentane, also known as isooctane, is an octane isomer which defines the 100 point on the octane rating scale. It is an important component of gasoline.
Isooctane is produced on a massive scale in the petroleum industry, usually as a mixture with related hydrocarbons. The alkylation process alkylates isobutane with isobutylene using a strong acid catalyst. In the NExOCTANE process, isobutylene is dimerized into isooctene and then hydrogenated to isooctane.

See also


isooctane in Danish: Isooktan
isooctane in German: 2,2,4-Trimethylpentan
isooctane in Spanish: 2,2,4-Trimetilpentano
isooctane in French: Isooctane
isooctane in Italian: Isoottano
isooctane in Japanese: イソオクタン
isooctane in Piemontese: Otan
isooctane in Polish: 2,2,4-trimetylopentan
isooctane in Portuguese: 2,2,4-trimetilpentano
isooctane in Russian: Изооктан
isooctane in Finnish: 2,2,4-trimetyylipentaani
isooctane in Swedish: 2,2,4-trimetylpentan
isooctane in Vietnamese: 2,2,4-Trimêtylpentan
isooctane in Chinese: 2,2,4-三甲基戊烷
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