Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents

Thermodynamic parameters play a crucial role in analyzing and optimizing crystallization processes. In this investigation, the solubility profiles of erythromycin thiocyanate dihydrate were determined gravimetrically under atmospheric pressure (0.1 MPa) across six monosolvent systems (methanol, n-pr...

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Main Authors: Jin Feng, Xunhui Li, Lianjie Zhai, Peizhou Li, Ting Qin, Na Wang, Lu Zhou, Baoxin Zhang, Ting Wang, Xin Huang, Hongxun Hao
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/30/11/2424
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author Jin Feng
Xunhui Li
Lianjie Zhai
Peizhou Li
Ting Qin
Na Wang
Lu Zhou
Baoxin Zhang
Ting Wang
Xin Huang
Hongxun Hao
author_facet Jin Feng
Xunhui Li
Lianjie Zhai
Peizhou Li
Ting Qin
Na Wang
Lu Zhou
Baoxin Zhang
Ting Wang
Xin Huang
Hongxun Hao
author_sort Jin Feng
collection DOAJ
description Thermodynamic parameters play a crucial role in analyzing and optimizing crystallization processes. In this investigation, the solubility profiles of erythromycin thiocyanate dihydrate were determined gravimetrically under atmospheric pressure (0.1 MPa) across six monosolvent systems (methanol, n-propanol, methyl acetate, ethyl acetate, propyl acetate, and water) and two binary solvent mixtures (water–methanol and water–n-propanol), spanning a temperature range of 278.15–318.15 K. The results showed that the solubility of erythromycin thiocyanate dihydrate is apparently affected by temperature and solvent type. For pure solvents, erythromycin thiocyanate dihydrate has higher solubility in alcohol solvents, and lower solubility in ester solvents and water. In mixed solvent systems, erythromycin thiocyanate dihydrate exhibits reduced solubility with higher water content. The experimental solubility values in monosolvent systems were correlated using the Apelblat, Yaws, and Van’t Hoff models, with the Apelblat model showing the best fitting effect. The Apelblat model, Apelblat Jouyban Acre model, and CNIBS/R-K model were employed for data correlation in binary solvent systems, with the Apelblat model and CNIBS/R-K model showing better fitting results.
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spelling doaj-art-8ae7dee9e94e4a389f5cf3674c986ada2025-08-20T03:11:19ZengMDPI AGMolecules1420-30492025-05-013011242410.3390/molecules30112424Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary SolventsJin Feng0Xunhui Li1Lianjie Zhai2Peizhou Li3Ting Qin4Na Wang5Lu Zhou6Baoxin Zhang7Ting Wang8Xin Huang9Hongxun Hao10National Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaCollege of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaYili Chuanning Biotechnology Co., Ltd., Yili 835000, ChinaYili Chuanning Biotechnology Co., Ltd., Yili 835000, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaNational Engineering Research Center for Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaThermodynamic parameters play a crucial role in analyzing and optimizing crystallization processes. In this investigation, the solubility profiles of erythromycin thiocyanate dihydrate were determined gravimetrically under atmospheric pressure (0.1 MPa) across six monosolvent systems (methanol, n-propanol, methyl acetate, ethyl acetate, propyl acetate, and water) and two binary solvent mixtures (water–methanol and water–n-propanol), spanning a temperature range of 278.15–318.15 K. The results showed that the solubility of erythromycin thiocyanate dihydrate is apparently affected by temperature and solvent type. For pure solvents, erythromycin thiocyanate dihydrate has higher solubility in alcohol solvents, and lower solubility in ester solvents and water. In mixed solvent systems, erythromycin thiocyanate dihydrate exhibits reduced solubility with higher water content. The experimental solubility values in monosolvent systems were correlated using the Apelblat, Yaws, and Van’t Hoff models, with the Apelblat model showing the best fitting effect. The Apelblat model, Apelblat Jouyban Acre model, and CNIBS/R-K model were employed for data correlation in binary solvent systems, with the Apelblat model and CNIBS/R-K model showing better fitting results.https://www.mdpi.com/1420-3049/30/11/2424erythromycin thiocyanate dihydratethermodynamic behaviorsolubility
spellingShingle Jin Feng
Xunhui Li
Lianjie Zhai
Peizhou Li
Ting Qin
Na Wang
Lu Zhou
Baoxin Zhang
Ting Wang
Xin Huang
Hongxun Hao
Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
Molecules
erythromycin thiocyanate dihydrate
thermodynamic behavior
solubility
title Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
title_full Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
title_fullStr Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
title_full_unstemmed Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
title_short Thermodynamic Behavior of Erythromycin Thiocyanate Dihydrate in Six Pure Solvents and Two Binary Solvents
title_sort thermodynamic behavior of erythromycin thiocyanate dihydrate in six pure solvents and two binary solvents
topic erythromycin thiocyanate dihydrate
thermodynamic behavior
solubility
url https://www.mdpi.com/1420-3049/30/11/2424
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