Density, Speed of Sound, and Viscosity of Binary Mixtures of Poly(propylene glycol) 400 + Ethanol and + 2-Propanol at Different Temperatures

Abstract

The density and speed of sound of the solutions of poly(propylene glycol) 400, in ethanol and 2-propanol at T = (288.15 to 328.15) K, and dynamic viscosity of these solutions at T = (298.15 to 328.15) K have been measured experimentally over the entire range of compositions and atmospheric pressure. From these experimental data, the excess molar volume, V m E, excess molar isentropic compression, κ E s,m, and deviation of logarithm of viscosity, Δ ln η, have been determined for each composition. V m E, κ E s,m, and viscosity data have been adequately fitted to the Redlich−Kister and NRTL models.