heptane

hep·tane

H0155700 (hĕp′tān′)n. Any of several isomeric, volatile, colorless, highly flammable liquid hydrocarbons, C₇H₁₆, obtained in the fractional distillation of petroleum and used as solvents. The straight-chain isomer is also used as a standard in determining octane ratings and as an anesthetic.

heptane

(ˈhɛpteɪn) n (Elements & Compounds) 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: C7H16[C19: from hepta- + -ane, so called because it has seven carbon atoms]

hep•tane

(ˈhɛp teɪn)

n. any of nine isomeric hydrocarbons, C₇H₁₆, of the alkane series, some of which are obtained from petroleum: used in fuels, as solvents, and as chemical intermediates. [1870–75; < Greek hept(á) seven + -ane]

Thesaurus

Noun

heptane - a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratingsalkane, alkane series, methane series, paraffin series, paraffin - a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)

Translations

Heptane

heptane

[′hep‚tān] (organic chemistry) CH₃(CH₂)₅CH₃ A hydrocarbon; water-insoluble, flammable, colorless liquid boiling at 98°C; soluble in alcohol, chloroform, and ether; used as an anesthetic, solvent, and chemical intermediate, and in standard octane-rating tests.

Heptane

(n-heptane), the hydrocarbon C₇H₁₆, a colorless volatile liquid with a slight odor. Boiling point, 98.4° C; density, 0.6838 g/cm³ at 20° C; refractive index (n_D²⁰), 1.3876; heat of combustion, 1167.11 kilocalories per mole (25° C); explosion limits in air, 1.10-6.00 volume · percent; flash point, −17° C. Insoluble in water; soluble in ether and other organic solvents.

The dehydrocyclization of heptane to toluene is of great interest, playing an important part in catalytic reforming and the aromatization of petroleum products. Pure heptane can be prepared by the usual methods for synthesis of saturated hydrocarbons; it can also be isolated by fractionation of petroleum or synthetic gasoline. Heptane is used as a primary reference standard in determining the knock rating of carburetor fuels (the octane number of heptane is assumed to be zero). Among the structural isomers of heptane, 2,2,3-trimethylbutane (triptane) is of practical importance, being added to motor fuels.

heptane

hep·tane

heptane

hep•tane

Heptane

heptane

Heptane

heptane

Words related to heptane

noun a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratings

Related Words