DENSITIES AND EXCESS VOLUMES OF THE BENZENE-CYCLOHEXANE SYSTEM BETWEEN 298.15-K AND 473.15-K

This paper reports the results of measurements of the densities of bin ary mixtures of benzene with cyclohexane using a high pressure stainle ss steel pycnometer system for the whole composition range at various temperatures between 298.15 and 473.15K. The experimental densities we re compared with those predicted by the Hankison-Brobst-Thomson (HBT) correlation and the Spencer and Danner Modified Rackett (SDR) equation . Both the HBT and the SDR showed an average deviation of;about 0.58%. The excess molar volumes, V-E, calculated from the density values hav e been found to be positive for all the concentrations and temperature s considered.