scholarly journals Phase Behavior of Aqueous Biphasic Systems with Choline Alkanoate Ionic Liquids and Phosphate Solutions: The Influence of pH

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1702
Author(s):  
Paula Berton ◽  
Hongzhe Tian ◽  
Robin D. Rogers
Keyword(s):  
Ionic Liquids ◽  
The Other ◽  
Triazine Herbicides ◽  
Aqueous Biphasic Systems ◽  
Neutral Ph ◽  
Nmr Data ◽  
Aqueous Biphasic ◽  
Biphasic Systems ◽  
Influence Of Ph ◽  
Phosphate Solutions

Aqueous biphasic systems (ABS) composed of the choline alkanoate ionic liquids (ILs) choline acetate [Cho][OAc], choline propanoate [Cho][Pro], choline butyrate [Cho][But], and choline hexanoate [Cho][Hex], mixed with K3PO4 solutions at pH 7.2 and 14.5, were prepared and their phase diagrams were compared. The ability to form ABS with alkaline K3PO4 solutions decreased in the order [Cho][OAc] ≈ [Cho][Pro] > [Cho][But] > [Cho][Hex], while with neutral K3PO4 solutions, [Cho][OAc] could not form an ABS, and the other three ILs performed similarly. All of the biphasic regions of the ABS decreased with the increase in pH. 1H-NMR data indicated anion exchange between phases in ABS at neutral pH. The ABS at neutral pH were evaluated to extract the triazine herbicides simazine, cyanazine, and atrazine, and the ABS formed by [Cho][Pro] and the pH 7.2 K3PO4 solution has shown extraction recoveries higher than 90%.

Aqueous biphasic systems composed of ionic liquids and sodium carbonate as enhanced routes for the extraction of tetracycline

2013 ◽  
Vol 29 (3) ◽  
pp. 645-654 ◽  
Author(s):  
Carlos F. C. Marques ◽  
Teresa Mourão ◽  
Catarina M. S. S. Neves ◽  
Álvaro S. Lima ◽  
Isabel Boal-Palheiros ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Sodium Carbonate ◽  
Aqueous Biphasic Systems ◽  
Aqueous Biphasic ◽  
Biphasic Systems

Controlling the Aqueous Miscibility of Ionic Liquids:  Aqueous Biphasic Systems of Water-Miscible Ionic Liquids and Water-Structuring Salts for Recycle, Metathesis, and Separations

2003 ◽  
Vol 125 (22) ◽  
pp. 6632-6633 ◽  
Author(s):  
Keith E. Gutowski ◽  
Grant A. Broker ◽  
Heather D. Willauer ◽  
Jonathan G. Huddleston ◽  
Richard P. Swatloski ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aqueous Biphasic Systems ◽  
Water Structuring ◽  
Aqueous Biphasic ◽  
Biphasic Systems

scholarly journals Hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts as major descriptors in the formation of aqueous biphasic systems

2018 ◽  
Vol 20 (20) ◽  
pp. 14234-14241 ◽  
Author(s):  
Helena Passos ◽  
Teresa B. V. Dinis ◽  
Ana Filipa M. Cláudio ◽  
Mara G. Freire ◽  
João A. P. Coutinho
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Predictive Model ◽  
Aqueous Biphasic Systems ◽  
Molar Entropy ◽  
Liquid Salt ◽  
Hydrogen Bond Basicity ◽  
Aqueous Biphasic ◽  
Biphasic Systems

A predictive model for ionic liquid/salt aqueous biphasic systems’ formation based on the hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts.

scholarly journals Separation of immunoglobulin G using aqueous biphasic systems composed of cholinium-based ionic liquids and poly(propylene glycol)

2018 ◽  
Vol 93 (7) ◽  
pp. 1931-1939 ◽  
Author(s):  
Catarina C Ramalho ◽  
Catarina MSS Neves ◽  
Maria V Quental ◽  
João AP Coutinho ◽  
Mara G Freire
Keyword(s):  
Ionic Liquids ◽  
Propylene Glycol ◽  
Immunoglobulin G ◽  
Aqueous Biphasic Systems ◽  
Aqueous Biphasic ◽  
Biphasic Systems ◽  
Poly Propylene

scholarly journals Aqueous Biphasic Systems Composed of Ionic Liquids and Acetate-Based Salts: Phase Diagrams, Densities, and Viscosities

2015 ◽  
Vol 60 (6) ◽  
pp. 1674-1682 ◽  
Author(s):  
Maria V. Quental ◽  
Helena Passos ◽  
Kiki A. Kurnia ◽  
João A. P. Coutinho ◽  
Mara G. Freire
Keyword(s):  
Ionic Liquids ◽  
Phase Diagrams ◽  
Aqueous Biphasic Systems ◽  
Aqueous Biphasic ◽  
Biphasic Systems

Ionic liquids as adjuvants for the tailored extraction of biomolecules in aqueous biphasic systems

2010 ◽  
Vol 12 (9) ◽  
pp. 1661 ◽  
Author(s):  
Jorge F. B. Pereira ◽  
Álvaro S. Lima ◽  
Mara G. Freire ◽  
João A. P. Coutinho
Keyword(s):  
Ionic Liquids ◽  
Aqueous Biphasic Systems ◽  
Aqueous Biphasic ◽  
Biphasic Systems
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