heptane

[ hep-teyn ]

noun

1. any of nine isomeric hydrocarbons, C 7 H 16 , of the alkane series, some of which are obtained from petroleum: used in fuels as solvents, and as chemical intermediates.

heptane

/ ˈhɛpteɪn /

noun

1. an alkane existing in nine isomeric forms, esp the isomer with a straight chain of carbon atoms ( n- heptane), which is found in petroleum and used as an anaesthetic. Formula: C 7 H 16

heptane

/ hĕp′tān′ /

1. A volatile, colorless, highly flammable liquid hydrocarbon obtained in the fractional distillation of petroleum. It is used as a standard in determining octane ratings (combustion characteristics), as an anesthetic, and as a solvent. Heptane is the seventh member of the alkane series. Chemical formula: C 7 H 16 .

Word History and Origins

Origin of heptane¹

First recorded in 1870–75; hept- ( def ) + -ane

Word History and Origins

Origin of heptane¹

C19: from hepta- + -ane , so called because it has seven carbon atoms

Example Sentences

Gasoline is primarily composed of isooctane and heptane.

From Seattle Times

For example, gasoline with an 89 octane rating contains 11% heptane and 89% isooctane.

From Seattle Times

Detectives are also asking anyone with information on Dean having access to Ethyl Ether or Heptane chemicals around the time the crimes were allegedly committed to come forward.

From Fox News

As part of the tests, researchers will ignite pans of heptane, a liquid fuel, in eight rooms on the second and sixth floors to achieve temperatures as high as 1,000 degrees Celsius — almost 2,000 degrees Fahrenheit.

From US News

As part of the tests, researchers will ignite pans of heptane, a liquid fuel, in eight rooms on the second and sixth floors to achieve temperatures as high as 1,000 degrees Celsius - almost 2,000 degrees Fahrenheit.

From Washington Times