Thermodynamic properties on mixing for hexane plus cyclohexane+1-octanol at 298.15 K

Density, speed of sound, isentropic compressibility, and refractive index h ave been measured for the ternary mixture hexane + cyclohexane + 1-octanol at 298.15 K and at atmospheric pressure. From these data, excess molar volu mes and excess isentropic compressibilities have been calculated. The resul ts were fitted by means of different polynomial expressions. Several empiri cal methods for predicting ternary derived properties from binary data were tested. The Nitta-Chao group contribution model was applied to predict the excess molar volume for this mixture.