| Abstract
The experimental solubility determination of bosentan (BST) in 1-propanol + water mixtures within temperature range,
T = (293.15–313.15) K were performed by applying the shake-flask method. The solubility data were correlated by four cosolvency models, which are the Jouyban- Acree, Jouyban-Acree-van’t Hoff, modified Wilson, and Yalkowsky equations.
The back-calculated solubility using the Jouyban-Acree-van’t Hoff equation presents better compatibility with the experimental data than those by the other models. Thermodynamic properties such as apparent molar enthalpy, entropy, and Gibbs free energy change of BST dissolution process in the binary (1-propanol + water) mixtures were also calculated which indicative of the inspontaneous process of dissolution. |