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2,2,4-三甲基戊烷

此条目缺少或没有列出参考或来源,或者有未能查证的内容。 (2012年9月26日)维基百科所有的内容都应该可供查证,化学类条目亦需严谨。请协助添加来自可靠来源的引用以改善这篇化学类条目无法查证的内容可能被提出异议而移除。
2,2,4-三甲基戊烷
IUPAC名
2,2,4-Trimethylpentane
识别
CAS号 540-84-1  checkY
PubChem 10907
ChemSpider 10445
SMILES
 
  • CC(C)CC(C)(C)C
Beilstein 1696876
UN编号 1262
EINECS 208-759-1
ChEBI 62805
RTECS SA3320000
MeSH 2,2,4-trimethylpentane
性质
化学式 C8H18
摩尔质量 114.22 g·mol⁻¹
外观 无色液体
密度 0.688 g/mL
熔点 −107.38 °C (165.77 K)
沸点 99.3 °C (372.4 K)
热力学
S298K 328 J·K−1·mol−1
危险性
警示术语 R:R11-R38-R50/53-R65-R67
安全术语 S:S2-S9-S16-S29-S33-S60-S61-S62
MSDS MSDS
闪点 4.5 °C
自燃温度 417 °C
相关物质
相关烷烃 庚烷
辛烷
相关化学品 十六烷
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

2,2,4-三甲基戊烷辛烷的一种异构体,俗称异辛烷(isooctane)。异辛烷在内燃机的汽缸里燃烧时抗震性较好,是汽油抗爆震度的一个标准,其辛烷值定为100(正庚烷之辛烷值定为0)。是优良的发动机燃料,但由于其价格昂贵,一般只用于军用、赛用和民航燃料使用,汽车工业上不采用异辛烷作为抗爆剂,而通常使用成本更低,但效果稍逊的甲基第三丁基醚代替。

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2,2,4-三甲基戊烷
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