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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (15): 1833-1836. 上一篇    下一篇

研究简报

氯化烷基咪唑系列离子液体标准摩尔燃烧焓和生成焓

关 伟 房大维 孙迎春 佟 静 杨家振*

  

  1. (辽宁大学化学院绿色化学实验室 沈阳 110036)

  • 投稿日期:2007-10-21 修回日期:2008-03-20 发布日期:2008-08-14
  • 通讯作者: 杨家振

Standard Molar Enthalpy of Combustion and Formation of Ionic Liquid Alkylimidazolium Chloride

GUAN, Wei FANG, Da-Wei SUN, Ying-Chun
TONG, Jing YANG, Jia-Zhen*
  

  1. (College of Chemistry, Laboratory of Green Chemistry, Liaoning University, Shenyang 110036)
  • Received:2007-10-21 Revised:2008-03-20 Published:2008-08-14
  • Contact: YANG, Jia-Zhen

PDF

1791

被引次数

13

用精密氧弹热量计测定了4种离子液体: 氯化1-甲基-3-乙基咪唑(C2MIC), 氯化1-甲基-3-丁基咪唑(C4MIC), 氯化1-甲基-3-戊基咪唑(C5MIC)和氯化1-甲基-3-己基咪唑(C6MIC)的燃烧热, 计算了它们的标准摩尔燃烧焓 和标准摩尔生成焓 , 结合文献中的标准摩尔溶解焓, 估算了烷基咪唑阳离子在水溶液中的标准摩尔生成焓, 以及亚甲基对标准摩尔燃烧焓和标准摩尔生成焓的贡献.

关键词: 氯化烷基咪唑, 离子液体, 氧弹热量计, 燃烧热, 生成焓

Using an oxygen-bomb combustion calorimeter the molar combustion heats of the ionic liquids of alkylimidazolium chloride: 1-methyl-3-ethylimidazolium chloride (C2MIC), 1-methyl-3-butylimidazo- lium chloride (C4MIC), 1-methyl-3-pentylimidazolium chloride (C5MIC), and 1-methyl-3-hexylimidazolium chloride (C6MIC), were determined at (298.15±0.01) K. The standard molar combustion enthalpies and the standard molar formation enthalpies were calculated. With standard molar enthalpies of solution of C2MIC, C4MIC, C5MIC and C6MIC in literature, the standard molar enthalpies of formation of C2MI＋, C4MI＋, C5MI＋, and C6MI＋ were obtained. The contribution of one methylene group to the and was also estimated, respectively.

Key words: alkylimidazolium chloride, ionic liquid, oxygen-bomb combustion calorimetry, enthalpy of combustion, enthalpy of formation