Definition of isooctane in English:
isooctane
noun ˌʌɪsəʊˈɒkteɪnˌīsōˈäktān
mass nounChemistry A liquid hydrocarbon present in petroleum. It serves as a standard in the system of octane numbers.
Chemical formula: (CH₃)₃CCH₂CH(CH₃)CH₃
Example sentencesExamples
- They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane.
- Mix gasoline with the right number of hydrocarbons and you get isooctane.
- The isooctane used was of spectroscopic grade.
- The end result is the addition of isobutane to isobutylene to form isooctane, the molecule that is the basis of octane ratings seen at the gas pumps.