Preliminary Assessment of the Sorption of some Alkyl Imidazolium Cations as used in Ionic Liquids to Soils and Sediments

Piotr Stepnowski

doi:10.1071/CH05018

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Preliminary Assessment of the Sorption of some Alkyl Imidazolium Cations as used in Ionic Liquids to Soils and Sediments

Piotr Stepnowski ^A

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^A Waste Management Laboratory, Faculty of Chemistry, University of Gdańsk, 80-952 Gdańsk, Poland. Email: sox@chem.univ.gda.pl

Australian Journal of Chemistry 58(3) 170-173 https://doi.org/10.1071/CH05018
Submitted: 19 January 2005 Accepted: 26 January 2005 Published: 15 March 2005

Abstract

The growing interest in the use of ionic liquids may soon result in their presence in the environment. In any evaluation of the environmental fate of these compounds, their sorption on soil is an essential parameter. This paper reports data on the sorption of ionic liquids on selected soils and marine sediments. Batch-equilibrium adsorption tests were conducted on a selection of imidazolium ionic liquid entities. All the compounds were strongly sorbed on all the soils under study. It seems that, regardless of the hydrophobic interaction with organic matter, non-hydrophobic interactions contribute to the sorption of these compounds to soils and sediments, which usually tends to occur with highly polar ionized groups such as quaternary moieties.

Acknowledgments

The support of Professor A. Nasal, Medical University of Gdańsk, and Professor B. Jastorff, University of Bremen, for this study is gratefully acknowledged. Financial support was provided by the Polish Ministry of Scientific Research and Information Technology under grant DS 8000-4-0141-5 and BW 8000-5-0285-5.

References

Preliminary Assessment of the Sorption of some Alkyl Imidazolium Cations as used in Ionic Liquids to Soils and Sediments

Abstract

Acknowledgments

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