Switchable solvents and methods of use thereof

摘要: A solvent that reversibly converts from a nonionic liquid mixture to an ionic upon contact with selected trigger, e.g., CO 2 , is described. In preferred embodiments, the readily converted back mixture. The includes amidine or guanidine both, and water, alcohol, combination thereof. Single component amine solvents convert between non-ionic states are also Some embodiments require increased pressure convert; others at 1 atmosphere.