Definition of heptane in English:

heptane

noun ˈhɛpteɪnˈhɛpˌteɪn

Chemistry

A colourless liquid hydrocarbon of the alkane series, present in petroleum spirit.
〔化〕庚烷
Chemical formula: C₇H₁₆; several isomers, especially the straight-chain isomer (n-heptane)
Example sentencesExamples
- Dehydrogenation is the commercial process for preparing toluene from heptane as given above.
- Stereochemical isomers are also possible with the alkanes, beginning with heptane.
- The reactants and the catalyst remained in the heptane layer, which was recycled by adding additional acylating agent and fresh aqueous ethanol.
- The extent of shift from nonpolar solvent heptane to polar solvent methanol increases with increase in the conjugation in the compound.
- They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane.

Origin

Late 19th century: from hepta- 'seven' (denoting seven carbon atoms) + -ane².

Definition of heptane in US English:

heptane

nounˈhepˌtānˈhɛpˌteɪn

Chemistry

A colorless liquid hydrocarbon of the alkane series, obtained from petroleum.
〔化〕庚烷
Chemical formula: C₇H₁₆; several isomers, especially the straight-chain isomer (n-heptane)
Example sentencesExamples
- Stereochemical isomers are also possible with the alkanes, beginning with heptane.
- The reactants and the catalyst remained in the heptane layer, which was recycled by adding additional acylating agent and fresh aqueous ethanol.
- Dehydrogenation is the commercial process for preparing toluene from heptane as given above.
- The extent of shift from nonpolar solvent heptane to polar solvent methanol increases with increase in the conjugation in the compound.
- They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane.

Origin

Late 19th century: from hepta- ‘seven’ (denoting seven carbon atoms) + -ane.

单词	heptane
释义	Definition of heptane in English: heptane noun ˈhɛpteɪnˈhɛpˌteɪn Chemistry A colourless liquid hydrocarbon of the alkane series, present in petroleum spirit. 〔化〕庚烷 Chemical formula: C₇H₁₆; several isomers, especially the straight-chain isomer (n-heptane) Example sentencesExamples Dehydrogenation is the commercial process for preparing toluene from heptane as given above. Stereochemical isomers are also possible with the alkanes, beginning with heptane. The reactants and the catalyst remained in the heptane layer, which was recycled by adding additional acylating agent and fresh aqueous ethanol. The extent of shift from nonpolar solvent heptane to polar solvent methanol increases with increase in the conjugation in the compound. They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane. Origin Late 19th century: from hepta- 'seven' (denoting seven carbon atoms) + -ane². Definition of heptane in US English: heptane nounˈhepˌtānˈhɛpˌteɪn Chemistry A colorless liquid hydrocarbon of the alkane series, obtained from petroleum. 〔化〕庚烷 Chemical formula: C₇H₁₆; several isomers, especially the straight-chain isomer (n-heptane) Example sentencesExamples Stereochemical isomers are also possible with the alkanes, beginning with heptane. The reactants and the catalyst remained in the heptane layer, which was recycled by adding additional acylating agent and fresh aqueous ethanol. Dehydrogenation is the commercial process for preparing toluene from heptane as given above. The extent of shift from nonpolar solvent heptane to polar solvent methanol increases with increase in the conjugation in the compound. They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane. Origin Late 19th century: from hepta- ‘seven’ (denoting seven carbon atoms) + -ane.
随便看	peccation peccavi peccavimus pec dec pec deck pech peche melba Pechenga peches Pechora pecia pecia system peck peck at peck at peck bag pecked pecked curve pecked line pecker pecker checker peckerhead peckers peckerwood peckerwood mill