Definition of pentane in English:

pentane

noun ˈpɛnteɪnˈpɛnteɪn

mass nounChemistry

A volatile liquid hydrocarbon of the alkane series, present in petroleum spirit.
〔化〕戊烷
Chemical formula: C₅H₁₂; three isomers, especially the straight-chain isomer (n-pentane)
Example sentencesExamples
- After thawing, the volatile components were extracted three times with 50 ml pentane.
- Like pentane, paraffins are alkanes - hydrocarbon molecules that have as many hydrogen atoms as the molecule's carbon backbone can accommodate.
- Acetone-free polish removers contain safer fruit-derived solvents like ethyl acetate and methyl pentane.
- Extra chemical agents are usually added to the solution: detergents such as octyl thioglucoside, octyl glucoside, octyl glucopyranoside, organic solvents such as pentane, hexane, or other chemicals such as glucose or glycerol.
- The pentane molecule, however, has neither hydrogen bonding nor polar groups to be attracted to water molecules.

Origin

Late 19th century: from Greek pente 'five' (denoting five carbon atoms) + a shortened form of alkane.

Definition of pentane in US English:

pentane

nounˈpɛnteɪnˈpentān

Chemistry

A volatile liquid hydrocarbon of the alkane series, present in petroleum-based solvents.
〔化〕戊烷
Chemical formula: C₅H₁₂; three isomers, especially the straight-chain isomer (n-pentane)
Example sentencesExamples
- Like pentane, paraffins are alkanes - hydrocarbon molecules that have as many hydrogen atoms as the molecule's carbon backbone can accommodate.
- Extra chemical agents are usually added to the solution: detergents such as octyl thioglucoside, octyl glucoside, octyl glucopyranoside, organic solvents such as pentane, hexane, or other chemicals such as glucose or glycerol.
- The pentane molecule, however, has neither hydrogen bonding nor polar groups to be attracted to water molecules.
- Acetone-free polish removers contain safer fruit-derived solvents like ethyl acetate and methyl pentane.
- After thawing, the volatile components were extracted three times with 50 ml pentane.

Origin

Late 19th century: from Greek pente ‘five’ (denoting five carbon atoms) + a shortened form of alkane.

词汇	pentane
释义	Definition of pentane in English: pentane noun ˈpɛnteɪnˈpɛnteɪn mass nounChemistry A volatile liquid hydrocarbon of the alkane series, present in petroleum spirit. 〔化〕戊烷 Chemical formula: C₅H₁₂; three isomers, especially the straight-chain isomer (n-pentane) Example sentencesExamples After thawing, the volatile components were extracted three times with 50 ml pentane. Like pentane, paraffins are alkanes - hydrocarbon molecules that have as many hydrogen atoms as the molecule's carbon backbone can accommodate. Acetone-free polish removers contain safer fruit-derived solvents like ethyl acetate and methyl pentane. Extra chemical agents are usually added to the solution: detergents such as octyl thioglucoside, octyl glucoside, octyl glucopyranoside, organic solvents such as pentane, hexane, or other chemicals such as glucose or glycerol. The pentane molecule, however, has neither hydrogen bonding nor polar groups to be attracted to water molecules. Origin Late 19th century: from Greek pente 'five' (denoting five carbon atoms) + a shortened form of alkane. Definition of pentane in US English: pentane nounˈpɛnteɪnˈpentān Chemistry A volatile liquid hydrocarbon of the alkane series, present in petroleum-based solvents. 〔化〕戊烷 Chemical formula: C₅H₁₂; three isomers, especially the straight-chain isomer (n-pentane) Example sentencesExamples Like pentane, paraffins are alkanes - hydrocarbon molecules that have as many hydrogen atoms as the molecule's carbon backbone can accommodate. Extra chemical agents are usually added to the solution: detergents such as octyl thioglucoside, octyl glucoside, octyl glucopyranoside, organic solvents such as pentane, hexane, or other chemicals such as glucose or glycerol. The pentane molecule, however, has neither hydrogen bonding nor polar groups to be attracted to water molecules. Acetone-free polish removers contain safer fruit-derived solvents like ethyl acetate and methyl pentane. After thawing, the volatile components were extracted three times with 50 ml pentane. Origin Late 19th century: from Greek pente ‘five’ (denoting five carbon atoms) + a shortened form of alkane.
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