Conductimetric studies of ionic association of tetraalkylammonium halides in iso-propanol + water mixtures at 25 °C. Part II.

Abstract

AIJAZ AHMAD ANSARI and M. R. ISLAM. Can. J. Chem. 66, 1720Chem. 66, (1988.Electrical conductivities of Me4NBr, Et4NBr, Pr4NBr, Bu4NBr, and Bu4PBr have been measured in isopropanol + water KA, and the distance of ion-size parameter (R or a;) are computed from these data. A better fit of the conductance data was provided by the F78 equation. Ion-solvent interactions and effective sizes of tetraalkylarnmonium ions are also discussed in order to understand the magnitude of the ionic association. The overall association behaviour of these salts has been found to increase with decrease in dielectric constant of the medium.