Density, viscosity, vapor-liquid equilibrium, excess molar volume, viscosity deviation, and their correlations for the chloroform+2-butanone binary system

Density and viscosity measurements for pure trichloromethane and 2-butanone as well as for trichloromethane ( 1) + 2-butanone ( 2) were made at ( 283.15, 293.15, 303.15, and 313.15) K over the whole concentration range. The experimental results were fitted to empirical equations, which permit the calculation of these properties in the whole concentration range and in the studied range of temperatures. The calculated values are in good agreement with the experimental ones. Data of the binary mixture were further used to calculate the excess molar volume and viscosity deviation. Vapor-liquid equilibrium ( VLE) at T = 303.15 K for this binary system was also measured in order to calculate the activity coefficients and the excess molar Gibbs function. This binary system shows negative deviations from ideal behavior and forms a minimum pressure azeotrope at x(1) = 0.199 and p = 15.3 kPa. The excess or deviation properties were fitted by the Redlich-Kister polynomial relation to obtain their coefficients and standard deviations.