1. From the measurement of the partition coefficient of phenol between benzene and water, it has been proved that phenol is in the state of chemical equilibrium, 3C6H5OH \leftrightarrows (C6H6O)3, while in the benzene layer at 25°C. 2. From the measurement of the freezing point of the aqueous phenol solution, it has also been proved that phenol is in the chemical equilibrium similar to the above in the aqueous solution at 0°C. It is to be emphasized that phenol associates itself in tripple molecules and not in double molecules.
An apparatus which is suited to determine the lowering of freezing point of organic solvent was describd. The lowerings of the freezing points of the solutions of chloroform, acetone, carbon-bisulphide, ethyl-ether, methyl-alcohol and ethyl-alcohol were determined, and their heats of fusion were calculated. This paper is a brief abstract of the following papers: The heats of fusion of chloroform, acetone and carbon-bisulphide. by S. Mitsukuri and S. Aoki. The heats of fusion of ethyl-ether, methyl-alcohol and ethyl-alcohol. by S. Mitsukuri and K. Hara. which are going to be published in the science reports of the Tohoku Imperial University. The full description of the experiments and some discussions on the results are to be found in the above papers.