ヘキシルアミンー水系の相互溶解度並びに異方性ゼリーについて
1958 年 78 巻 3 号 p. 278-279
詳細
1958 年 78 巻 3 号 p. 278-279
Mutual solubility of hexylamine-water system was measured at temperatures between 0° and 70° and characteristic solubility curves were obtained. The solubility curve of an amine layer has a maximum point at the amine concentration of approximately 10% and a temperature of 22.5°, and a minimum point at the amine concentration of approximately 30% and a temperature of 18.7°. When 10-60% aqueous solution of hexylamine is cooled to below 10°, it forms an optically anisotropic jelly-like solid. Solid-liquid equilibrium of this state was examined, its transition and melting curves were obtained, and the presence of a hexylamine hexahydrate was assumed from the shape of these curves.
