Abstract
The solubility of isoimperatorin in pure solvents and solvent mixtures was measured by UV spectrophotometry from 288.2 to 328.2 K. The solubility of isoimperatorin in binary ethanol and water solvent systems increases with temperature and with decrease of the mole fraction of water in the solvent mixture. The solubility data were correlated with a modified Apelblat equation. The enthalpy and entropy of dissolution of isoimperatorin were evaluated using the van’t Hoff equation.
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