Controlling the aqueous miscibility of ionic liquids: aqueous biphasic systems of water-miscible ionic liquids and water-structuring salts for recycle, metathesis, and separations.

  title={Controlling the aqueous miscibility of ionic liquids: aqueous biphasic systems of water-miscible ionic liquids and water-structuring salts for recycle, metathesis, and separations.},
  author={Keith E. Gutowski and Grant A. Broker and Heather D. Willauer and Jonathan G. Huddleston and Richard P. Swatloski and John D. Holbrey and Robin D. Rogers},
  journal={Journal of the American Chemical Society},
  volume={125 22},
Hydrophilic ionic liquids can be salted-out and concentrated from aqueous solution upon addition of kosmotropic salts forming aqueous biphasic systems as illustrated by the phase behavior of mixtures of 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) and K3PO4. 

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