Prediction of viscosity of binary solvent mixtures at various temperatures

Abstract

Combined forms of the Jouyban-Acree model and the calculated Abraham solute parameters as descriptors for solvents were used for predicting the viscosity of binary solvent mixtures at various temperatures. The proposed models were tested on a large number of the experimental data of binary miscible mixtures. The mean relative deviations (MRDs) between computed and experimental viscosity data are used as an accuracy criterion. The overall MRD for the investigated mixtures is 17%. With including the experimental viscosity of mono-solvents, the prediction capability of the proposed model is improved and the overall MRD is 7%. A reduced form of the model could be used to compute the viscosity of mono-solvents at various temperatures with the MRD of 27%. (C) 2011 Elsevier B.V. All rights reserved.