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Solubilities of Rutaecarpine in Twelve Organic Solvents from (283.2 to 323.2) K

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§ Key Laboratory of Poyang Lake Ecology and Bio-Resource Utilization of Ministry of Education, School of Environmental and Chemical Engineering, and §School of Foreign Language, Nanchang University, Nanchang 330031, China
*E-mail: [email protected] (J.-P. Fan). Fax: +86 791 83969594. Tel.: +86 791 83969583.
Cite this: J. Chem. Eng. Data 2013, 58, 7, 1969–1973
Publication Date (Web):June 10, 2013
https://doi.org/10.1021/je4001334
Copyright © 2013 American Chemical Society

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    Abstract

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    The solubilities of rutaecarpine in 12 organic solvents (dichloromethane, ethyl acetate, acetone, trichloromethane, ethoxyethane, butyl alcohol, isopropyl alcohol, ethyl alcohol, methyl alcohol, cyclohexane, hexane, and pentane) were measured over the temperature range of (283.2 to 323.2) K. The solubilities of rutaecarpine in selected organic solvents increase with the increasing of the temperature and were correlated by the modified Apelblat equation and a simplified thermodynamic equation. The dissolution enthalpy and entropy of rutaecarpine in these solvents were calculated using the van’t Hoff equation. The results showed that the dissolution process was endothermic and entropy-driven.

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    1H NMR and UV spectra and HPLC-DAD chromatogram of rutaecarpine. This material is available free of charge via the Internet at http://pubs.acs.org.

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