THE APPLICATION OF THE ASSOCIATIVE MEAN SPHERICAL APPROXIMATION IN THE
THEORY OF NONAQUEOUS ELECTROLYTE SOLUTIONS
Author(s): J.Barthel, H.Krienke (Institut fur Physikalische und Theoretische Chemie, Universitat Regensburg, D-93040, Regensburg, Germany), M.F.Holovko, V.I.Kapko, I.A.Protsykevich (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine)
Ionic association in electrolyte solutions is investigated in the framework of chemical models. The associative mean spherical approximation (AMSA) for electrolyte theory is reviewed. It is shown that AMSA in combination with the Ebeling association constant satisfactorily reproduces the thermodynamic measurement data up to high concentrations for nonaqueous solutions of solvents of relative permittivities in the range $20<\varepsilon <36$. For ionic solutions of lower permittivity the AMSA is modified by including ion trimers and tetramers to obtain a correct description of osmotic coefficients and ionic conductivities.
Comments: Figs. 5, Refs. 31, Tabs. 3.
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