V2EX isooctane

Isooctane

释义 Definition

异辛烷:一种常见的支链烷烃,化学名为2,2,4-三甲基戊烷(CH)。它常用于汽油研究与标准化,尤其作为辛烷值(octane number)标定的参考燃料之一(通常与正庚烷对比)。

发音 Pronunciation (IPA)

/asokten/

例句 Examples

Isooctane is used to define the high end of the octane rating scale.
异辛烷用于定义辛烷值标度的高端基准。

In the lab, we prepared a reference fuel by blending isooctane with n-heptane to study engine knock.
在实验室里,我们将异辛烷与正庚烷混合制备参考燃料,用于研究发动机爆震。

词源 Etymology

isooctane 由 **iso-**(“异构的、支链的”这一类命名习惯用前缀)+ octane(“辛烷”,八个碳的烷烃家族名称)组成。它指的是“支链形式的辛烷”,在燃料化学中通常特指 2,2,4-三甲基戊烷这一结构。

相关词 Related Words

文学/著作中的用例 Literary Works

  • The Merck Index(《默克索引》):在烃类与参考物质条目中常收录 isooctane(2,2,4-三甲基戊烷)的性质与用途。
  • CRC Handbook of Chemistry and Physics(《CRC 化学与物理手册》):在燃料、物性数据与烃类表格中常出现 isooctane。
  • Perry’s Chemical Engineers’ Handbook(《佩里化工工程师手册》):在燃料、烃类与工艺数据相关章节中常提及 isooctane 作为标准燃料/组分。
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