Abstract
The solubility of hydroxyacetic acid in five pure organic solvents and two binary solvent mixtures were experimentally measured from 273.15K to 313.15K at atmospheric pressure (p=0.1MPa) by using a dynamic method. The order of solubility in pure organic solvents is ethanol>isopropanol>n-butanol>acetonitrile>ethyl acetate within the investigated temperature range, except for temperature lower than 278K where the solubility of HA in ethyl acetate is slightly larger than that in acetonitrile. Furthermore, the solubility data in pure solvents were correlated with the modified Apelblat model, NRTL model, and Wilson model and that in the binary solvents mixtures were fitted to the CNIBS/R-K model and Jouyban-Acree model. Finally, the mixing thermodynamic properties of hydroxyacetic acid in pure and binary solvent systems were calculated and discussed.
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