Abstract
Abstract The ionic-association reaction of the complex between the Methyl Organic anion and the dodecyltrimethylammonium cation in dioxane–water mixtures has been studied by analyzing the conductivity data. The equivalent conductivities at an infinite dilution and the ionic association constants (KA) have been determined by means of Shedlovsky’s treatment, and they have been compared with those of Methyl Orange (sodium salt). The KA values have been seen to increase with a rise in the temperature and with an increase in the dioxane content. The Walden products have been essentially constant, and they have been found to be comparable to those of Methyl Orange (sodium salt). The data have been analyzed further by the use of the Denison-Ramsey equation, and the ion-ion distance in an associate has been obtained. The ionic-association reaction have been found to increase the heat content and also the entropy.
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