APPARENT MOLAR VOLUMES AND EXPANSIBILITIES OF 1-OCTANOL, 1-NONANOL, AND 1-DECANOL IN DILUTE CYCLOHEXANE SOLUTIONS

The densities of solutions of 1-octanol, 1-nonanol, and 1-decanol in c yclohexane up to concentrations of 1.56 mol kg(-1) were measured at te mperatures between 20 and 60 degrees C. The apparent molar volumes and expansibilities were found to be linearly dependent on solute concent ration. The excess molar volume and the excess thermal expansion coeff icient of the solute were derived from the partial molar volume of the solute at infinite dilution and the solute densities. In addition, th e limiting partial molar volume of the solute is discussed in terms of the scaled particle theory.