TOTAL PRESSURE MEASUREMENTS FOR CHLOROFORM PLUS ACETONE PLUS 2-BUTANONE AT 303.15-K

Total pressure measurements are reported for chloroform + acetone + 2- butanone, chloroform + 2-butanone, and acetone + 2-butanone at 303.15 K. The results were obtained using a Van Ness apparatus and were fitte d to a flexible correlating expression for the excess Gibbs free energ y of the liquid phase using Barker's method. This expression represent s the measured pressures for the ternary system with an average deviat ion of 0.03 kPa. The applicability of the NRTL equation to this system is examined, and it is found to predict the ternary results with an a verage deviation of 0.07 kPa.