Definition of cetane in English:

cetane

nounˈsiːteɪnˈsiteɪn

mass nounChemistry

A colourless liquid hydrocarbon of the alkane series, present in petroleum spirit.
〔化〕十六烷，鲸蜡烷
Chemical formula: C₁₆H₃₄
Example sentencesExamples
- The secret formula behind the new diesel relies upon an increase in cetane; the equivalent of octane used in petrol.
- Ultimate diesel has a guaranteed cetane rating of 55, compared with regular diesel at 51, and BP claims that it can reduce the noise and smoke in a diesel vehicle by up to 30 percent.
- The composition may optionally also contain pour point depressants, cetane improvers, carbon-containing compounds which react with water, and/or emulsifiers.
- Its density, viscosity, cetane index, combustion point, and several other parameters they looked at compare favorably with those of ethyl esters of sunflower, rape, groundnut, and soybean oils.

Origin

Late 19th century: from Latin cetus 'whale', from Greek kētos (because related compounds were first derived from spermaceti) + -ane².

Definition of cetane in US English:

cetane

nounˈsētānˈsiteɪn

Chemistry

A colorless liquid hydrocarbon of the alkane series, used as a solvent.
〔化〕十六烷，鲸蜡烷
Alternative name: n-hexadecane; chemical formula: C₁₆H₃₄
Example sentencesExamples
- The secret formula behind the new diesel relies upon an increase in cetane; the equivalent of octane used in petrol.
- The composition may optionally also contain pour point depressants, cetane improvers, carbon-containing compounds which react with water, and/or emulsifiers.
- Ultimate diesel has a guaranteed cetane rating of 55, compared with regular diesel at 51, and BP claims that it can reduce the noise and smoke in a diesel vehicle by up to 30 percent.
- Its density, viscosity, cetane index, combustion point, and several other parameters they looked at compare favorably with those of ethyl esters of sunflower, rape, groundnut, and soybean oils.

Origin

Late 19th century: from Latin cetus ‘whale’, from Greek kētos (because related compounds were first derived from spermaceti) + -ane.

词汇	cetane
释义	Definition of cetane in English: cetane nounˈsiːteɪnˈsiteɪn mass nounChemistry A colourless liquid hydrocarbon of the alkane series, present in petroleum spirit. 〔化〕十六烷，鲸蜡烷 Chemical formula: C₁₆H₃₄ Example sentencesExamples The secret formula behind the new diesel relies upon an increase in cetane; the equivalent of octane used in petrol. Ultimate diesel has a guaranteed cetane rating of 55, compared with regular diesel at 51, and BP claims that it can reduce the noise and smoke in a diesel vehicle by up to 30 percent. The composition may optionally also contain pour point depressants, cetane improvers, carbon-containing compounds which react with water, and/or emulsifiers. Its density, viscosity, cetane index, combustion point, and several other parameters they looked at compare favorably with those of ethyl esters of sunflower, rape, groundnut, and soybean oils. Origin Late 19th century: from Latin cetus 'whale', from Greek kētos (because related compounds were first derived from spermaceti) + -ane². Definition of cetane in US English: cetane nounˈsētānˈsiteɪn Chemistry A colorless liquid hydrocarbon of the alkane series, used as a solvent. 〔化〕十六烷，鲸蜡烷 Alternative name: n-hexadecane; chemical formula: C₁₆H₃₄ Example sentencesExamples The secret formula behind the new diesel relies upon an increase in cetane; the equivalent of octane used in petrol. The composition may optionally also contain pour point depressants, cetane improvers, carbon-containing compounds which react with water, and/or emulsifiers. Ultimate diesel has a guaranteed cetane rating of 55, compared with regular diesel at 51, and BP claims that it can reduce the noise and smoke in a diesel vehicle by up to 30 percent. Its density, viscosity, cetane index, combustion point, and several other parameters they looked at compare favorably with those of ethyl esters of sunflower, rape, groundnut, and soybean oils. Origin Late 19th century: from Latin cetus ‘whale’, from Greek kētos (because related compounds were first derived from spermaceti) + -ane.
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