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10.3390/molecules28135012
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Article

Measurement and Correlation of Solubility of Thiamine Nitrate in Three Binary Solvents and Thermodynamic Properties for the Solutions in Different Binary Mixtures at (278.15–313.15) K

by
Xinda Li
1,†,
Zhengjiang Wang
2,†,
Jing Wang
2,
Jiaqi Lu
2,
Jin Mao
2,
Dandan Han
1,* and
Kangli Li
3,*
1
State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
2
Xi’an TPRI Water-Management & Environmental Protection Co., Ltd., Xi’an 710054, China
3
Institute of Shaoxing, Tianjin University, Shaoxing 312300, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Molecules 2023, 28(13), 5012; https://doi.org/10.3390/molecules28135012
Submission received: 29 May 2023 / Revised: 14 June 2023 / Accepted: 20 June 2023 / Published: 27 June 2023
(This article belongs to the Special Issue Thermodynamics, Structure, and Intermolecular Interactions in Solutions)
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Abstract

The solubility of thiamine nitrate in {(methanol, acetone, isopropanol) + water} solvents will provide essential support for crystallization design and further theoretical studies. In this study, the solubility was experimentally measured over temperatures ranging from 278.15 to 313.15 K under atmospheric pressure using a dynamic method. The solubility increased with increasing temperature at a constant solvent composition. The dissolving capacity of thiamine nitrate in the three binary solvent mixtures at constant temperature in the low ratio of water ranked as water + methanol > water + acetone > water + isopropanol generally. Interestingly, in the high ratio of water systems, especially when the molar concentration of water was greater than 0.6, the dissolving capacity ranked as water + acetone > water + methanol > water + isopropanol. Additionally, the modified Apelblat equation, λh equation, van’t Hoff equation and NRTL model were used to correlate the solubility data in binary mixtures. It turned out that all the selected thermodynamic models could give satisfactory results. Furthermore, the thermodynamic properties of the dissolution process of thiamine nitrate were also calculated based on the modified van’t Hoff equation. The results indicate that the dissolution process of the thiamine nitrate in the selected solvents is all endothermic.
Keywords: thiamine nitrate; solubility; thermodynamic; polarity thiamine nitrate; solubility; thermodynamic; polarity

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MDPI and ACS Style

Li, X.; Wang, Z.; Wang, J.; Lu, J.; Mao, J.; Han, D.; Li, K. Measurement and Correlation of Solubility of Thiamine Nitrate in Three Binary Solvents and Thermodynamic Properties for the Solutions in Different Binary Mixtures at (278.15–313.15) K. Molecules 2023, 28, 5012. https://doi.org/10.3390/molecules28135012

AMA Style

Li X, Wang Z, Wang J, Lu J, Mao J, Han D, Li K. Measurement and Correlation of Solubility of Thiamine Nitrate in Three Binary Solvents and Thermodynamic Properties for the Solutions in Different Binary Mixtures at (278.15–313.15) K. Molecules. 2023; 28(13):5012. https://doi.org/10.3390/molecules28135012

Chicago/Turabian Style

Li, Xinda, Zhengjiang Wang, Jing Wang, Jiaqi Lu, Jin Mao, Dandan Han, and Kangli Li. 2023. "Measurement and Correlation of Solubility of Thiamine Nitrate in Three Binary Solvents and Thermodynamic Properties for the Solutions in Different Binary Mixtures at (278.15–313.15) K" Molecules 28, no. 13: 5012. https://doi.org/10.3390/molecules28135012

APA Style

Li, X., Wang, Z., Wang, J., Lu, J., Mao, J., Han, D., & Li, K. (2023). Measurement and Correlation of Solubility of Thiamine Nitrate in Three Binary Solvents and Thermodynamic Properties for the Solutions in Different Binary Mixtures at (278.15–313.15) K. Molecules, 28(13), 5012. https://doi.org/10.3390/molecules28135012

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