Application of the ERAS model to volumetric properties of binary mixtures of banana oil with primary and secondary alcohols (C1-C4) at different temperatures

The densities of binary mixtures of {isoamyl acetate + alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, and 2-butanol)}, including those of pure liquids, over the entire composition range were measured at temperatures (293.15 to 333.15) K and atmospheric pressure by means of a vibrating-tube densimeter. The excess molar volume, V-m(E), thermal expansion coefficients, a, and their excess values, alpha(E), were calculated from density data. The V-m(E) values are positive over the entire range of composition and temperature and become more positive with increasing temperature for all of the mixtures except for the (isoamyl acetate + methanol) mixture. The V-m(E) values were correlated by Redlich-Kister equation and the extended real associated solution (ERAS) model was used for describing V-m(E) at T = 303.15 K. (C) 2010 Elsevier Ltd. All rights reserved.