Measurement and Correlation of the Solubility of Aminocaproic Acid in Some Pure and Binary Solvents

The solubilities of aminocaproic acid in four monosolvents (isopropanol, methyl acetate, ethyl acetate, and water) and three binary solvents (methanol water, ethanol water, and dimethylformamide water) were measured by the static analytical method from 283.15 to 323.15 K at atmospheric pressure. In monosolvents, the solubility increases with the increase of temperature. Also, the solubility of aminocaproic acid in water is much higher than that in other organic solvents. In binary solvents, the solubility increases with the increase of the temperature and the mole fraction of water. The solubility data was well correlated by the Apelblat equation, Ali equation, and NRTL equation, and the mixing properties of enthalpy, Gibbs energy, and entropy have also been discussed.