Density, viscosity and thermodynamic activation for viscous flow of water plus sulfolane

摘要

Densities and viscosities for the system, water (W)+sulfolane (SFL), have been determined for the entire range of composition at temperatures ranging from 303.15 to 323.15 K. Density, excess molar volume, viscosity, excess viscosity and thermodynamic activation parameters for viscous flow have been calculated and plotted against the mole fraction of SFL. The measured properties and some of the derived properties have been fitted to appropriate polynomial equations. These have been explained in terms of such factors, as, dipole-dipole interaction, partial accommodation of water molecules into the structural network of SFL and H-bonding between SFL and H2O.