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Determination and Correlation of Solubilities of 2-Isopropylthioxanthone (ITX) in Seven Different Solvents from (299.15 to 329.85) K

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College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, People’s Republic of China
*E-mail: [email protected]. Tel: +86-379-65515113. Fax: +86-65523821.
Cite this: J. Chem. Eng. Data 2015, 60, 3, 941–946
Publication Date (Web):January 21, 2015
https://doi.org/10.1021/je501011t
Copyright © 2015 American Chemical Society

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    Abstract

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    The solubilities of 2-isopropylthioxanthone (ITX) in methanol, toluene, ethanol, acetone, ethyl acetate, 1,4-dioxane, and 1,2-dichloroethane were determined at temperatures ranging from (299.15 to 329.85) K under atmospheric pressure by employing the synthetic method. The solid–liquid equilibrium of the mixture was detected by a laser monitoring observation technique and found to increase with an increase in temperature. The experimental solubilities were correlated by the modified Apelblat and λh equations. The modified Apelblat equation fits well with the experimental data with the relative deviation less than 2.86 %. The standard enthalpy and standard entropy of the solution of ITX in different solvents were obtained by van’t Hoff equation together with the modified Apelblat model.

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