Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 120, Issue 30, Pages 7502-7510Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcb.6b05424
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- project INNOVILLN [622906]
- FP7-PEOPLE Marie Curie Actions-IEF
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The solubilities of C(1)C(4)im(+) and Tf2N- in nitric aqueous phases have been measured for several ligand types and concentrations (0.04 M tributylphosphine oxide, 0.05 M N,N'-dimethyl-N,N'-dibutylmalonamide, 0.10 M 1-methyl-3-[4(dibutylphosphinoyl)butyl]-3H-imidazol-1-ium bis(trifluoromethylsulphonyl)imidate, and 1.1 M N,N-dihexyloctanamide). The data evidence a significant difference between the solubilities of the cations and anions of the ionic liquid as a consequence of several ion-exchange and/or ion-pairing mechanisms involving all ions present in the system as well as the protonation/nitric-extraction ability of the ligand.
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