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Solubility and Solution Thermodynamics of Gibberellin A4 in Different Organic Solvents from 278.15 K to 333.15 K

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State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
Jiangsu Fengyuan Bioengineering Co. Ltd., Yancheng 224300, China
Cite this: J. Chem. Eng. Data 2015, 60, 7, 2104–2109
Publication Date (Web):June 23, 2015
https://doi.org/10.1021/acs.jced.5b00190
Copyright © 2015 American Chemical Society

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    Abstract

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    Data on corresponding solid–liquid equilibrium of Gibberellin A4 (GA4) in different solvents is essential for a preliminary study of industrial applications. In this paper, the solid–liquid equilibrium of GA4 in water, methanol, ethanol, isopropanol, 1-butanol, acetonitrile, acetone, and ethyl acetate was explored in the temperatures (from 278.15 K to 333.15 K) under atmosphere pressure. For the temperature range investigated, the solubility of GA4 in the solvents increased with increasing temperature. From 278.15 K to 333.15 K, the solubility of GA4 in isopropanol is superior to other selected solvents. The modified Apelblat model, the Buchowski–Ksiazaczak λh model, and the ideal model were adopted to describe and predict the change tendency of solubility. Computational results showed that the modified Apelblat model has advantages than the other two models. In addition, the calculated thermodynamic parameters indicated that in each studied solvent the dissolution of GA4 is endothermic, nonspontaneous, and an entropy-driven process.

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    Cited By

    This article is cited by 6 publications.

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