Studies of volumetric, viscometric and molar properties of diisopropyl amine with 1-alkanols (C-6-C-10) at different temperatures

摘要

This paper presents the experimental measurements of densities, rho, viscosities, eta and speeds of sound, u of (Diisopropylamine (DIIPA) + 1-Hexanol, + 1-Octanol, + 1-Decanol) over the entire composition range at (293.15 to 313.15) K and atmospheric pressure. We examined the influence of temperature and alcohol chain length upon the various studied properties. Negative values of excess molar volume V-m(E), and excess molar isentropic compressibilities, K-S(E), (m) indicates the presence strong intermolecular interactions. The results of deviations in speeds of sound, u, viscosity deviations, Ail and Gibbs excess free energy of activation of viscous flow, Delta G(*E) also supports the conclusion drawn from V-m(E) and K-S(E) The outcomes of V-m(E) have been correlated to Prigogine-Flory-Patterson theory (PFP). (C) 2016 Elsevier B.V. All rights reserved.