SCI和EI收录∣中国化工学会会刊

›› 2015, Vol. 23 ›› Issue (2): 412-416.DOI: 10.1016/j.cjche.2014.11.008

• CHEMICAL ENGINEERING THERMODYNAMICS • Previous Articles     Next Articles

Vapor pressure measurement and correlation of acetonitrile +1-butyl-3-methylimidazolium chloride, +1-butyl-3-methylimidazolium tetrafluoroborate, and +1-hexyl-3-methylimidazolium chloride

Qing Yang, Kexia Chen, Changchun He, Changjun Peng, Honglai Liu   

  1. State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China
  • Received:2013-08-05 Revised:2013-10-02 Online:2015-03-01 Published:2015-02-28
  • Supported by:
    Supported by the National Natural Science Foundation of China (21276073, 21136004), the National Basic Research Program of China (2009CB219902), and the Fundamental Research Funds for the Central Universities of China (222201313001).

Vapor pressure measurement and correlation of acetonitrile +1-butyl-3-methylimidazolium chloride, +1-butyl-3-methylimidazolium tetrafluoroborate, and +1-hexyl-3-methylimidazolium chloride

Qing Yang, Kexia Chen, Changchun He, Changjun Peng, Honglai Liu   

  1. State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China
  • 通讯作者: Changjun Peng
  • 基金资助:
    Supported by the National Natural Science Foundation of China (21276073, 21136004), the National Basic Research Program of China (2009CB219902), and the Fundamental Research Funds for the Central Universities of China (222201313001).

Abstract: Vapor pressures were measured for acetonitrile +1-butyl-3-methylimidazolium chloride ([C4mim][Cl]), +1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]) and +1-hexyl-3-methylimidazolium chloride ([C6mim][Cl]) at temperatures of 313 to 353 K by a quasi-staticmethod. The experimental data for the binary systemswere correlated by the non-randomtwo liquid (NRTL) equationwith an average absolute relative deviation (AARD) of within 1.84%. The results indicate that the three ionic liquids (ILs) can result in a negative deviation from the Raoult's law for the binary solutions containing acetonitrile, and the affinity between ILs and acetonitrile molecules follows the order [C4mim][BF4]+acetonitrile > [C4mim][Cl]+acetonitrile > [C6mim][Cl]+acetonitrile.

Key words: Acetonitrile, Ionic liquid, Vapor pressure, Non-random two liquid

摘要: Vapor pressures were measured for acetonitrile +1-butyl-3-methylimidazolium chloride ([C4mim][Cl]), +1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]) and +1-hexyl-3-methylimidazolium chloride ([C6mim][Cl]) at temperatures of 313 to 353 K by a quasi-staticmethod. The experimental data for the binary systemswere correlated by the non-randomtwo liquid (NRTL) equationwith an average absolute relative deviation (AARD) of within 1.84%. The results indicate that the three ionic liquids (ILs) can result in a negative deviation from the Raoult's law for the binary solutions containing acetonitrile, and the affinity between ILs and acetonitrile molecules follows the order [C4mim][BF4]+acetonitrile > [C4mim][Cl]+acetonitrile > [C6mim][Cl]+acetonitrile.

关键词: Acetonitrile, Ionic liquid, Vapor pressure, Non-random two liquid