Salting-out Effect of Ionic Liquid, 1-Butyl-3-methyl Imidazolium Chloride on Aqueous D-Fructose or Sucrose Solutions at T=298.15 K: Vapor-Liquid Equilibrium Study

被引：6

作者：

Zafarani-Moattar, Mohammed Taghi ^{[1
]}

Shekaari, Hemayat ^{[1
]}

Agha, Elnaz Mazaher Haji ^{[1
]}

机构：

[1] Univ Tabriz, Dept Phys Chem, Tabriz, Iran

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2018年 / 63卷 / 09期

关键词：

PLUS WATER SYSTEMS; ATMOSPHERIC-PRESSURE; ISOPIESTIC METHOD; PHASE-EQUILIBRIA; AMINO-ACIDS; L-SERINE; CELLULOSE; BROMIDE; THERMODYNAMICS; MULTICOMPONENT;

D O I：

10.1021/acs.jced.7b00682

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Water activity and vapor pressure for aqueous {ionic liquid,1-butyl-3-methyl imidazolium chloride + sucrose or D-fructose} solutions have been determined using the improved isopiestic method at T = 298.15 K. The reliability of local composition models of NRTL, NRF-NRTL, modified NRTL, Wilson, and UNIQUAC in the fitting the water activity values for the studied systems has been examined. For saccharides in aqueous and aqueous ionic liquid solutions and for ionic liquid in aqueous solutions, the unsymmetrical molal activity coefficients were computed. The 0.85 interactions present in these systems were interpreted by the comparison of the molal activity coefficients of these saccharides in aqueous and aqueous ionic liquid solutions. Furthermore, salt effect of ionic liquid, 1-butyl-3-methyl imidazolium chloride has been compared with two previously studied ionic liquids 1-butyl-3-methyl imidazolium bromide and 1-hexyl-3-methyl imidazolium chloride. In this study, the effects of chain length and anion type of ionic liquids on interactions present in these systems were also investigated.

引用

页码：3196 / 3205

页数：10

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