Measurement and Correlation of Solubility of Two Isomers of Cyanopyridine in Eight Pure Solvents from 268.15 K to 318.15 K

Solubility of two isomers of cyanopyridine (CNP) in various solvents were determined by the gravimetric method in the temperature range from 268.15 K to 318.15 K at atmospheric pressure. The experimental results show that the solubility of 3-cyanopyridine increased dramatically over 298.15 K, wherea...

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Bibliographic Details
Published in:Journal of chemical and engineering data 2017-10, Vol.62 (10), p.3241-3251
Main Authors: Zhang, Rui, Feng, Zhengjie, Ji, Hongbing
Format: Article
Language:English
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Summary:Solubility of two isomers of cyanopyridine (CNP) in various solvents were determined by the gravimetric method in the temperature range from 268.15 K to 318.15 K at atmospheric pressure. The experimental results show that the solubility of 3-cyanopyridine increased dramatically over 298.15 K, whereas 4-cyanopyridine was more stable at the same state. The modified Apelblat model, polynomial equation, the Buchowski–Ksiazczak λh equation, and Wilson model were employed to correlate the experimental data. The Wilson model provides better agreement than the other models in terms of the 3- and 4-cyanopyridine. Moreover, molecular simulation was also used to present the interaction between 3-CNP, 4-CNP, and the solvent molecules, which can give an explanation for the solubility behavior in solvents.
ISSN:0021-9568
1520-5134
DOI:10.1021/acs.jced.7b00301