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Dr. Ye Chen, Dr. Fuyou Ke, Prof. Dr. Huaping Wang, Prof. Dr. Yumei Zhang and Prof. Dr. Dehai Liang Phase Separation in Mixtures of Ionic Liquids and Water ChemPhysChem 13

Article first published online: 30 NOV 2011 | DOI: 10.1002/cphc.201100782

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A passing phase: The phase separation of ionic liquids (ILs) in water is studied by static and dynamic light scattering (see picture). For ILs with longer alkyl chains, macroscopic phase separation occurs in the mixtures. In aqueous mixtures of ILs with shorter alkyl chains, such as 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim]BF4), only the mesoscopic phase exists. It can be removed by filtration but reforms with time.

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