Measurement and Correlation for the Solubilities of Dihydrocapsaicin in<i>n</i>-Heptane,<i>n</i>-Hexane,<i>n</i>-Pentane, Ethyl Acetate, Acetone, Ethanol, and Water

Abstract

Using the dynamic method of a laser detecting system, the solubilities of dihydrocapsaicin in n-heptane, n-hexane, n-pentane, ethyl acetate, acetone, ethanol, and water from (298.43 to 329.84, 296.14 to 327.57, 297.26 to 306.45, 302.07 to 327.58, 299.49 to 319.77, 301.79 to 328.84, and 324.67 to 331.49) K, respectively, were measured. The experimental data were correlated with the Wilson model, a polynomial empirical equation, and the Apelblat equation. The calculations show that the data correlated with the Wilson model for the former three weak polar solvents have less deviations than those correlated with the polynomial empirical equation and the Apelblat equation, while the data correlated with the polynomial empirical equation for the latter four strong polar solvents have less deviations than those correlated with the Apelblat equation and the Wilson model.