Salting-Out Effect, Preferential Exclusion, and Phase Separation in Aqueous Solutions of Chaotropic Water-Miscible Ionic Liquids and Kosmotropic Salts: Effects of Temperature, Anions, and Cations

2010 ◽  
Vol 55 (4) ◽  
pp. 1598-1610 ◽  
Author(s):  
Mohammed Taghi Zafarani-Moattar ◽  
Sholeh Hamzehzadeh
Keyword(s):  
Ionic Liquids ◽  
Phase Separation ◽  
Aqueous Solutions ◽  
Salting Out ◽  
Anions And Cations ◽  
Effects Of Temperature

Measurement and Modeling of Solubility of Galactose in Aqueous Ionic Liquids, 1-Butyl-3-Methyl Imidazolium Bromide, 1-Hexyl-3-Methyl Imidazolium Bromide and 1-Butyl-3-Methylimidazolium Chloride at T = (298.15 And 308.15) K

2019 ◽  
Vol 25 (4) ◽  
pp. 319-330
Author(s):  
Mohammad Taghi Zafarani-Moattar ◽  
Hemayat Shekaari ◽  
Elnaz Mazaher Haji Agha
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Activity Coefficient ◽  
Aqueous Solutions ◽  
Mole Fraction ◽  
Gravimetric Method ◽  
Green Solvents ◽  
Salting Out ◽  
Liquid Solutions ◽  
Activity Coefficient Models

Background: Saccharides are considered as abundant, cheap and renewable starting materials for chemicals and fuels. Recently, ionic liquids have been used as green solvents for saccharides. The solubility values of galactose in aqueous ionic liquid solutions are not available. Thus, the main objective of this research was to determine the solubility of galactose in aqueous solutions containing ionic liquids, 1-butyl-3-methyl imidazolium bromide, [BMIm]Br, 1-butyl-3-methylimidazolium chloride [BMIm]Cl and 1-hexyl-3-methyl imidazolium bromide, [HMIm]Br at different mole fractions of ionic liquids at T = (298.15 and 308.15) K. Methods: In this study, the gravimetric method was used to measure the solubility of galactose in aqueous ionic liquids solutions. Results: The solubility values of galactose in water and aqueous ionic liquid solutions were correlated with the activity coefficient models of Wilson, NRTL, modified NRTL, NRF-NRTL, and UNIQUAC. Conclusion: It was concluded that with increasing the mole fraction of ionic liquids, the solubility values of galactose decrease and in fact all of these ionic liquids show salting-out effect on aqueous galactose solutions and this behavior is stronger in ionic liquid 1-butyl-3-methylimidazolium chloride.

Structural Effects of Anions and Cations on the Aggregation Behavior of Ionic Liquids in Aqueous Solutions

2008 ◽  
Vol 112 (51) ◽  
pp. 16682-16689 ◽  
Author(s):  
Huiyong Wang ◽  
Jianji Wang ◽  
Shibiao Zhang ◽  
Xiaopeng Xuan
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Aggregation Behavior ◽  
Structural Effects ◽  
Anions And Cations

scholarly journals Salting-out in Aqueous Solutions of Ionic Liquids and K3PO4: Aqueous Biphasic Systems and Salt Precipitation

2007 ◽  
Vol 8 (8) ◽  
pp. 736-748 ◽  
Author(s):  
Vesna Najdanovic-Visak ◽  
José Lopes ◽  
Zoran Visak ◽  
J. Trindade ◽  
Luís Rebelo
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Salt Precipitation ◽  
Salting Out ◽  
Aqueous Biphasic Systems ◽  
Aqueous Biphasic ◽  
Biphasic Systems

Ionic Liquids in Polyethylene Glycol Aqueous Solutions: Salting-in and Salting-out Effects

2007 ◽  
Vol 138 (11) ◽  
pp. 1153-1157 ◽  
Author(s):  
Zoran P. Visak ◽  
José N. Canongia Lopes ◽  
Luis Paulo N. Rebelo
Keyword(s):  
Ionic Liquids ◽  
Polyethylene Glycol ◽  
Aqueous Solutions ◽  
Salting Out
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