Thermodynamic study of the solubility of some sulfonamides in cyclohexane

Abstract

The thermodynamic functions Gibbs energy, enthalpy and entropy of solution in cyclohexane, were evaluated from solubility data for a group of sulfonamides over the temperature range from 20.0 to 40.0 °C. The excess Gibbs energy and the activity coefficients of the solutes were also determined. The results are discussed in terms of solute-solvent interactions.

Keywords

• sulfonamides
• solubility
• solution thermodynamics
• activity coefficient
• cyclohexane