| 释义 |
Definition of heptane in English: heptanenoun ˈhɛpteɪnˈhɛpˌteɪn Chemistry A colourless liquid hydrocarbon of the alkane series, present in petroleum spirit. 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: heptanenounˈhepˌtānˈhɛpˌteɪn Chemistry A colorless liquid hydrocarbon of the alkane series, obtained from petroleum. 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. |