Measurement and Correlation for Solubilities of Adipic Acid, Glutaric Acid and Succinic Acid in Acetic Acid + Cyclohexanone Mixtures

Under atmospheric pressure, the solubilities of adipic acid, glutaric acid, and succinic acid in acetic acid + cyclohexanone mixtures were measured respectively by using the laser dynamic method in which the temperature ranged from 298.55 to 340.85 K and the mass fraction of cyclohexanone in the binary solvent mixtures ranged from 0.0 to 1.0. The results showed that the solubilities of adipic acid, glutaric acid, and succinic acid in acetic acid + cyclohexanone solvent mixtures all increased with decreasing of the mass fraction of cyclohexanone in the solvent mixtures at the constant temperature, and with the gradually increasing of temperature the measured solubilities of adipic acid, glutaric acid and succinic acid in acetic acid + cyclohexanone solvent mixtures would increase at the constant proportion solvent mixtures. The λh equation and the nonrandom two liquid (NRTL) activity coefficient model were used to correlate the experimental solubilities, and the average relative deviation was lesser than 2...