The ionic liquid effect on solubility of aniline, a simple aromatic amine: Perspective of solvents’ mixture

► Influence of bis(trifluoromethylsulfonyl)amide and trifluoromethanesulfonate-based ionic liquid on solubility of aniline. ► The solubility amendment by solvents’ mixture use. ► Ionic liquids are competitive and tunable solvents for aniline processing. The satisfactory mutual solubility of aniline...

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Bibliographic Details
Published in:Fluid phase equilibria 2012-07, Vol.325, p.105-110
Main Authors: Santos, Susana I., Bogel-Łukasik, Ewa, Bogel-Łukasik, Rafał
Format: Article
Language:English
Subjects:
Aniline
Chemistry
Derivatives
Exact sciences and technology
Fluid dynamics
Fluid flow
General and physical chemistry
Ionic liquid
Ionic liquids
Phase equilibria
Solubility
Solvents
Solvents’ mixture
Upper critical solution temperature
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Summary:► Influence of bis(trifluoromethylsulfonyl)amide and trifluoromethanesulfonate-based ionic liquid on solubility of aniline. ► The solubility amendment by solvents’ mixture use. ► Ionic liquids are competitive and tunable solvents for aniline processing. The satisfactory mutual solubility of aniline and bis(trifluoromethylsulfonyl)amide or trifluoromethanesulfonate-based ionic liquids can open new perspectives in processing of phenylamine derivatives. Liquid–liquid equilibrium (LLE) and solid–liquid equilibrium (SLE) measurements were performed using a dynamic (synthetic) method. The solubility of aniline in trifluoromethanesulfonate ionic liquids was found to be significantly lower than in the studied bis(trifluoromethylsulfonyl)amide ionic liquids. Furthermore, the solubility of aniline in mixed solvents was studied, and thus, the possibility to enhance solubility maintaining benefits coming from the presence of hydrophilic trifluoromethanesulfonate ionic liquid was highlighted.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2012.04.015