석탄유도화합물인 Benzene, Cyclohexane, Naphthalene, Biphenyl이 이루는 Benzene-Naphthalene, Benzene-Biphenyl, Cyclohexane-Naphthalene 그리고 Cyclohexane-Biphenyl의 이성분계의 포화용해도를 측정하고, 이들 이성분계들의 고-액 상평형도를 완성하였다. 이들 계의 포화용해도는 Scatchard-Hildebrand Regular Solution Theory로써 정확히 예측할 수 있음을 보였다.

Solubilities of the coal derived solids naphthalene and biphenyl in the solvents benzene and cyclohexane were measured from the temperature near to the melting point of the solutes to that of the solvents, and then the solid-liquid phase diagrams were constructed from the experimental data. The solubilities were accurately predicted by estimating the activity coefficients in the solid solubility equations using the Scatchard-Hildebrand regular solution theory. For the benzene solutions which were close to an ideal solution, the accuracy could be achieved by using the physical properties of the pure components only. For the cyclohexane solutions which were highly non-ideal, however, binary parameter l_(ij) was needed to improve the accuracy of prediction. The eutectic points of the binary systems were also closely estimated by the method.