Density, viscosity, isothermal (vapour plus liquid) equilibrium, excess molar volume, viscosity deviation, and their correlations for chloroform plus methyl isobutyl ketone binary system

摘要

Density and viscosity measurements for pure chloroform and methyl isobutyl ketone at T= (283.15 293.15, 303.15, and 313.15) K as well as for the binary system {x(1) chloroform + (1- x(1)) methyl isobutyl ketone I at the same temperatures were made over the whole concentration range. The experimental results were fitted to empirical equations, which permit the calculation of these properties over the whole concentration and temperature ranges studied. Data of the binary mixture were further used to calculate the excess molar volume and viscosity deviation. The (vapour + liquid) equilibrium (VILE) at T = 303.15 K for this binary system was also measured in order to calculate the activity coefficients and the excess molar Gibbs energy. This binary system shows no azeotrope and negative deviations from ideal behaviour. The excess or deviation properties were fitted to the Redlich-Kister polynomial relation to obtain their coefficients and standard deviations. (c) 2006 Elsevier Ltd. All rights reserved.