Journal
CHEMOSPHERE
Volume 89, Issue 3, Pages 327-333Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2012.04.050
Keywords
Aqueous solubility; Octanol/water partition coefficient; Relative lipophilicity; Infinite dilution diffusion coefficient; Ionic liquids; Functional group
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Funding
- France/Ireland collaboration project Ulysses
- CPER Environnement, Auvergne Region, France
- Polish Ministry of Research and Higher Education [N204 527139]
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Several physico-chemical properties relevant to determine the environmental impact of ionic liquids aqueous solubility, octanol/water partition coefficient, chromatographically derived lipophilicity and infinite dilution diffusion coefficients in water - were measured in ionic liquids based on pyridinium, ammonium and pyrrolidinium cations with bis(trifluoromethylsulfonyl)imide anions. The influence of the presence of hydroxyl or ester groups in the physico-chemical properties of these liquids was checked. It appeared that the presence of functional oxygenated moieties reduces the lipophilicity of ionic liquids and so decreases the risk of bioaccumulation in environment. (C) 2012 Elsevier Ltd. All rights reserved.
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