TY - JOUR
T1 - Phase Equilibrium of Aqueous Glycine + Choline Chloride Ionic Liquid Solutions
AU - Zafarani-Moattar, Mohammed Taghi
AU - Asadzadeh, Behnaz
AU - Shekaari, Hemayat
N1 - Funding Information:
We are grateful to University of Tabriz Research Council for the financial support of this research.
Publisher Copyright:
© 2016, Springer Science+Business Media New York.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Vapor–liquid equilibrium data (water activities and vapor pressures) for aqueous glycine + choline chloride ionic liquid (IL) mixtures and the corresponding binary aqueous IL solutions have been measured by the isopiestic method at 298.15 K and atmospheric pressure. The water activity data were accurately correlated with the segment-based local composition models of Wilson, NRTL and the modified NRTL. The solid–liquid equilibrium studies were also made on the above system, to determine the solubility of glycine in the presence of aqueous choline chloride, using refractive index measurements at various IL concentrations at 298.15 K. To describe the thermodynamic behavior of glycine in aqueous choline chloride solutions, transfer Gibbs energies (∆transferG) of the amino acid from water to aqueous IL solutions have been calculated from the above local composition models.
AB - Vapor–liquid equilibrium data (water activities and vapor pressures) for aqueous glycine + choline chloride ionic liquid (IL) mixtures and the corresponding binary aqueous IL solutions have been measured by the isopiestic method at 298.15 K and atmospheric pressure. The water activity data were accurately correlated with the segment-based local composition models of Wilson, NRTL and the modified NRTL. The solid–liquid equilibrium studies were also made on the above system, to determine the solubility of glycine in the presence of aqueous choline chloride, using refractive index measurements at various IL concentrations at 298.15 K. To describe the thermodynamic behavior of glycine in aqueous choline chloride solutions, transfer Gibbs energies (∆transferG) of the amino acid from water to aqueous IL solutions have been calculated from the above local composition models.
KW - Choline chloride
KW - Glycine
KW - Solubility
KW - Transfer Gibbs energies
KW - Water activity
UR - http://www.scopus.com/inward/record.url?scp=84994299180&partnerID=8YFLogxK
U2 - 10.1007/s10953-016-0537-z
DO - 10.1007/s10953-016-0537-z
M3 - Article
AN - SCOPUS:84994299180
SN - 0095-9782
VL - 45
SP - 1842
EP - 1856
JO - Journal of Solution Chemistry
JF - Journal of Solution Chemistry
IS - 12
ER -