Excess Volume of the 1-Propanol + 1-Alkene Systems in Terms of an Equation of State with Association

Abstract

The measurements of excess molar volume VE at 298.15 K for binary mixtures formed by 1-propanol with 1-alkene (C6, C7) and excess molar volume VE at (288.15, 298.15, and 308.15) K with 1-decene are reported. For the 1-decene system, the excess molar isobaric thermal expansion APE at 298.15 K is estimated. These data together with VE and APE at 298.15 K for 1-propanol with 1-octene published previously (Treszczanowicz et al. J. Solution Chem. 2002, 31, 455−466 and 2004, 33, 275−285) are discussed and interpreted in terms of the Treszczanowicz and Benson (TB) model adapted for mixtures of self-associated component and active solvent. The model contains the Flory equation of state (EOS) combined with the association model proposed by Treszczanowicz and Kehiaian. The Flory EOS interaction interchange parameter is described in terms of the Kehiaian group contribution method taking into account the OH···π interactions and nonspecific interactions. The model predicts qualitatively well the shape of the VE and th...