Abstract
Extraction equilibrium of hydrochloric acid in aqueous solution with tri-n-octylamine in toluene, water content accompanying the acid extraction and average aggregation number of the species formed in the organic solution were measured under various conditions. Formation constants of several species formed were estimated, and the species estimated by these experimental results were confirmed by the infrared spectra of the organic solution. It was found that the acid, A, reacts with the amine, B, to form three species of (AB)n (n = 1, 2 and 3) in the organic solution. The formation constants of these species were estimated.
