Density, Dynamic Viscosity and Derived Properties of Binary Mixtures of Methanol, Ethanol, n-Propanol, and n-Butanol with Pyridine at T = (293.15, 303.15, 313.15 and 323.15) K

摘要

Densities, viscosities of binary liquid mixtures composed of pyridine and some primary alcoholsnamely methanol, ethanol, n-propanol and n-butanol were determined at 293.15, 303.15, 313.15 and323.15 K. From the experimental results obtained, deviation in viscosity (勶仺), excess molar volumeE E (V ), excess Gibbs free energy of activation of viscous flow (* ), were determined. The deviationsin viscosity, excess molar volume and excess Gibbs free energy of activation of viscous flow werecorrelated with Redlich-Kister polynomial equation. Other parameters like Grunberg-Nissaninteraction constant (d) and a modified Kendall-Monroe equation (E╩), were used to quantitativelyanalyze the interactions in the system.