X-ray studies of 2-methyl-2-propanol solution in cyclohexane

Changes in the mean least intermolecular distances in a solution of 2-methyl-2-propanol in cyclohexane with increasing concentration of the former were found to be non-linear. Both in the range of low (0.005-0.04 molar fraction) and high (0.45-0.75 molar fraction) concentrations of the solutions studied local maxima of the mean least intermolecular distance were observed. In the range from 0.8 to 1 molar fraction the value of this parameter remained constant. Results obtained in this work prove the absence of the specific structural properties of a low concentration alcohol solution observed in other solvents. The occurrence of the local maxima proves that cyclohexane is a non-active solvent. Owing to this the molecules of the solute and the solvent assume positions ensuring homogeneity of the solvents.