J. Chem. Thermodynamics 99 (2016) 11–15 Contents lists available at ScienceDirect J. Chem. Thermodynamics journal homepage: www.elsevier.com/locate/jct Measurement and correlation of solubility of pronamide in ﬁve organic solvents at (278.15–323.15) K Huai Guo, Liangcheng Song , Chongqiang Zhu, Di Wu, Chunhui Yang School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, People’s Republic of China article i nfo abstract Article history: The solubility of pronamide in ﬁve organic solvents (ethanol, methanol, isopropanol, toluene and cyclo- Received 13 March 2016 hexane) at the temperature range from (278.15 to 323.15) K was measured by a dynamic equilibrium Received in revised form 23 March 2016 method. The results showed that the solubility of pronamide increased with the increasing temperature Accepted 24 March 2016 in all the solvents involved. The experimental values were correlated by the Apelblat equation, and a good Available online 25 March 2016 ﬁtting result was conﬁrmed by the low level of root-mean-square deviations (<4.0 10 ). Moreover, the apparent dissolving enthalpies and entropies, were derived from simpliﬁed van’t Hoff equation. The Keywords: positive values of enthalpies and entropies revealed that the dissolution of pronamide in the selected Pronamide solvents was an endothermic and entropy-driven process.
The Journal of Chemical Thermodynamics – Elsevier
Published: Aug 1, 2016
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