Abstract

Tailing phenomena observed during the dissolution of binary oil mixtures are manifestations of non-equilibrium effects and are not induced by non-ideal partitioning. This conclusion follows a thermodynamically-based analysis of the dissolution process in a chromatographic framework. A criterion, both components of binary oil mixtures having enhanced or unaffected solubilities relative to Raoult's law, serves as an indicator for systems in which non-linear-partitioning induced tailing is precluded; tailing must be the result of non-equilibrium processes. This condition is the rule, since chemical dissimilarities tend to increase activity coefficients in mixtures.

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