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Journal of Chemical & Engineering Data

Journal of Chemical & Engineering Data

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Solubility Determination and Thermodynamic Correlation of Chlorphenesin in 12 Pure Solvents from 288.15 to 328.15 K

Published:30 November 2020 DOI: 10.1021/acs.jced.0c00900
Wei Hong, Shengzhe Jia, Zongqiu Li, Wenlong Li, Zhenguo Gao*

Abstract

The solubility of chlorphenesin (CHP) in 12 solvents was determined by the gravimetric method from 288.15 to 328.15 K under atmospheric pressure. The experimental results were correlated by three thermodynamic models (Apelblat equation, λh equation, and NRTL model). The average relative deviations (ARDs) in the Apelblat equation and NRTL model were less than 5%, indicating a good correlation with the experimental results. In addition, the mixing thermodynamic properties (ΔmixH, ΔmixG, and ΔmixS) in 12 solvents were calculated by the NRTL model, in which all the ΔmixG values were negative and ΔmixS values were positive, indicating that the mixing process is spontaneous. Finally, the solvent physicochemical properties were investigated to visualize the solvent effects on solubility results. The results indicated that the solubility of CHP in alcohol and ester systems was mainly affected by the solvent polarity and viscosity.

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