Solubility Behavior and Thermodynamic Analysis of Bisphenol A in 14 Different Pure Solvents
Jingping Sun, Long Wang, Shuaiwei Ding, Xiaobo Sun, Li Xu
Abstract
The solubility of bisphenol A in 14 different pure solvents ( N, N -dimethylformamide, formamide, acetone, 1,4-dioxane, cyclohexanone, ethyl acetate, methyl acetate, acetonitrile, ethanol, methanol, 1-propanol, 1-butanol, 2-propanol, and 2-butanol) was measured at T = (273.15–313.15) K under atmospheric pressure using a laser dynamic method. The experimental data of bisphenol A were correlated by modified Apelblat equation, λh equation, nonrandom two-liquid model and Wilson model, and the fitting results showed that the modified Apelblat equation gave the best correlation with the experimental results. The thermodynamic functions of bisphenol A in 14 pure solvents, such as dissolution enthalpy (Δ mix H ), Gibbs energy (Δ mix G ), and dissolution entropy (Δ mix S ), were obtained from the Wilson model. The results of the Δ mix G < 0 and Δ mix H < 0 indicated that the dissolution process of bisphenol A in selected solvents was exothermic and spontaneous. The values of γ 1 ∞ and γ 1 were not close, indicating that bisphenol A in selected solvent solution systems was nonideal.