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Title: Switchable solvents and methods of use thereof

A solvent that reversibly converts from a nonionic liquid mixture to an ionic liquid upon contact with a selected trigger, e.g., contact with CO.sub.2, is described. In preferred embodiments, the ionic solvent is readily converted back to the nonionic liquid mixture. The nonionic liquid mixture includes an amidine or guanidine or both, and water, alcohol, or a combination thereof. Single component amine solvents that reversibly convert between ionic and non-ionic states are also described. Some embodiments require increased pressure to convert; others convert at 1 atmosphere.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1130056
Report Number(s):
8,710,265
13/969,984
DOE Contract Number:
FG02-99ER14986
Resource Type:
Patent
Research Org:
Queen's University at Kingston, Canada
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY