Volumetric studies of isomers of propanol and butanol with n-decane: Flory-Treszczanowicz-Benson model and Prigogine-Flory-Patterson theory

Excess molar volumes (V-m(E)) of propanol and butanol (1) + n-decane (2) systems were measured at 298.15 K. The V-m(E) data at x(1)=0.5, vary as: tert-butanol > sec-butanol > isopropanol > n-propanol > isobutanol > n-butanol. The V-m(E) data were interpreted in terms of Flory-Treszczanowicz-Benson model and Prigogine-Flory-Patterson theory. While both the models correctly described the sign and shape of curves, the values calculated by Flory-Treszczanowicz-Benson model compared reasonably well with the respective measured data. Partial, excess partial and apparent molar volumes of these alcohols with n-decane were also computed from V-m(E) data. (C) 2017 Elsevier B.V. All rights reserved.