@article{koronaios_king_osteryoung_1998, title={Acidity of neutral buffered 1-ethyl-3-methylimidazolium chloride AlCl3 ambient-temperature molten salts}, volume={37}, ISSN={["0020-1669"]}, DOI={10.1021/ic971345u}, abstractNote={A series of studies on the acidity of AlCl3−1-ethyl-3-methylimidazolium chloride (EMIC) melts buffered with alkali metal chlorides were carried out. The solubility of HCl, a strong Bronsted acid in these melts, was measured in melts buffered with LiCl, NaCl, and KCl. The solubility of HCl in all three melts is 450−475 mM under 1 atm of HCl, approximately the same as that in the acidic (AlCl3-rich) melts. The relative solubility products of LiCl, NaCl, and KCl were measured, and it was found that Ksp(NaCl)/Ksp(LiCl) = 72 ± 6 and Ksp(KCl)/Ksp(NaCl) = 1000 ± 400. It is likely that the differences in the acidity of HCl in the various melts are due to the differences in the solubility product of the relevant alkali metal chlorides. These ratios are consistent with the results of previous studies on the acidity of HCl in the melts. The concentrations of the strongly Lewis acidic Al2Cl7- ion in melts buffered with LiCl were measured using an aluminum electrode. The results of the potentiometric work indicate tha...}, number={8}, journal={INORGANIC CHEMISTRY}, author={Koronaios, P and King, D and Osteryoung, RA}, year={1998}, month={Apr}, pages={2028–2032} }