VISCOSITIES OF THE TERNARY MIXTURE (1-BUTANOL PLUS N-HEXANE PLUS 1-CHLOROBUTANE) AT 298.15 K AND 313.15 K

Viscosities of the ternary mixture (1-butanol + n-hexane + 1-chlorobut ane) and the binary mixture (n-hexane + 1-chlorobutane) have been meas ured at 298.15 K and 313.15 K. Viscosity deviations and excess Gibbs e nergy of activation of viscous flow for the binary and ternary systems were fitted to Redlich-Kister's and Cibulka's equations. The 'viscosi ty-thermodynamic' model (UNIMOD) has been used to correlate experiment al data for the binary mixtures and to predict the viscosities for the ternary system. The Group-Contribution Thermodynamic-Viscosity model (GC-UNIMOD), and the group contribution method proposed by Wu have bee n used to predict the viscosity of the binary and ternary systems. (C) 1998 Elsevier Science B.V. All rights reserved.