Abstract
Abstract In this article are reported the excess enthalpies, HE, at 298.15 K, of liquid mixtures containing a linear mono-carboxylic acid (1) + di-n-butylether (2), determined by means of a titration calorimetric method. The experimental results, together with the literature data on thermodynamic properties of the above mentioned class of mixtures, have been interpreted in terms of the DISQUAC group contribution model. A set of structure-dependent interaction parameters, for the carboxylic group/oxygen contact, has been obtained. The model provides a fairly consistent description of the excess Gibbs energy, GE and excess enthalpy, HE, curves of the investigated mixtures.
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