title: A quick, simple, robust method to measure the acidity of ionic liquids.
abstract: Introduced here is a quick, simple, robust method to measure acidity in ionic liquid (IL) systems by the use of the NMR-probe mesityl oxide. Acidity corresponding to a Hammett acidity of -1 to -9 can be measured reliably using this technique, a range that vastly exceeds that of any single UV-vis probe.
authors.affiliation: Department of Chemistry, Imperial College London, London, SW7 2AZ, UK. t.welton@imperial.ac.uk.
authors.forename: John
authors.initials: J
authors.lastname: Gräsvik
authors.forename: Jason P
authors.initials: JP
authors.lastname: Hallett
authors.forename: Trang Quynh
authors.initials: TQ
authors.lastname: To
authors.forename: Tom
authors.initials: T
authors.lastname: Welton