アミン-水-苛性アルカリ系の平衡 (第4報)

Abstract

In order to measure the mutual solubility of a ternary system of α-picoline, water, and sodium hydroxide system at 0, 30, 60, and 90°, the amount of the three components in the upper and lower layers in an equilibrium state at each temperature was quantitatively determined and the mutual solubility curve was drawn on a triangular graph. Dehydration of α-picoline by sodium hydroxide increases with the rise of temperature, i.e. the conentration of α-picoline present with a definte concentration of sodium hydroxide increases with the rise of temperature. When the temperature is definite, the concentration of α-picoline in the upper layer becomes greater as the concentration of sodium hydroxide in the lower layer becomes greater. In other words, the mutual solubility of the α-picoline-water-sodium hydroxide system decreases with the increase of the temperature.