Apparent charge composition, variation

The aim of most authors (3,11,12) in using Equations 2, 3, 4, or 5 was to predict from a given model the variation of the cmc with solvent composition. To our knowledge, however, except in a few cases (3,4), AGt° was ignored and the electric potentials were calculated with drastic simplifications e.g., the variation of the apparent charge of the micelle with the addition of the organic component was not taken into account. There is no easy way of determining the composition X of the mixed micelle, so we shall focus our discussion on the simplest case, i.e. that described by Equation 5. 

Figure 6. Variation of the apparent charge of the ionic micelles with solvent composition Zmic = an...

In studies on solvent effects involving variation in the composition of two component mixtures, similar types of outer-sphere interactions yield preferential solvation wherein the solvent composition of the outer-sphere may differ markedly from the bulk solvent composition. Supporting electrolyte species and buffer components may also participate in outer-sphere interactions thereby changing the apparent nature (charge, bulk, lability) of the reacting solvated metal ion or metal complex as perceived by a reacting ligand in the bulk solvent. 

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