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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (7): 577-580. 上一篇    下一篇

研究论文

离子液体BMIBF4性质的研究

杨家振*,1，桂劲松2，吕兴梅b,c，张庆国a,c，李华为2   

  1. (1辽宁大学化学院 沈阳 110036)
    (2沈阳师范大学化学和生命学院 沈阳 110032)
    (3中国科学院青海盐湖研究所 西宁 810008)
  • 投稿日期:2004-07-14 修回日期:2004-12-08 发布日期:2010-12-10
  • 通讯作者: 杨家振

Study on Properties of Ionic Liquid BMIBF4

YANG Jia-Zhen*,1, GUI Jin-Song2, LÜ Xing-Meib,c, ZHANG Qing-Guoa,c, LI Hua-Wei2   

  1. (1 Department of Chemistry, Liaoning University, Shenyang 110036)
    (2 Department of Chemistry, Shenyang Normal University, Shenyang 110032)
    (3 Institute of Salt Lakes, Chinese Academy of Science, Xining 810008)
  • Received:2004-07-14 Revised:2004-12-08 Published:2010-12-10
  • Contact: YANG Jia-Zhen

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用最大气泡法和韦氏天平法, 在278.15～343.15 K范围内测定了离子液体BMIBF4的表面张力和密度; 讨论了这个离子液体的体积性质和表面性质; 根据离子个头大又极不对称的特点, 提出了离子液体的空隙模型. 根据空隙模型计算的离子液体恒压热膨胀系数与实验值相比, 偏差在10%左右.

关键词: 离子液体, 密度, 表面张力, 空隙理论, BMIBF4

This paper reported the densities, and surface tension of the pure ionic liquid BMIBF4 under dry argon in the temperature range of 278.15 to (343.15±0.1) K. The volumetric properties and the properties of surface for ionic liquid were discussed. The interstice theory was put forward and the thermal expansion coefficient, α, calculated by the theory was in good agreement with experimental value.

Key words: ionic liquid, density, surface tension, interstice theory, BMIBF4