Solubility and solution thermodynamics of 2,3,4,5-tetrabromothiophene in (ethanol + tetrahydrofuran) binary solvent mixtures |
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| Institution: | 1. Sanofi, LGCR Chemistry, 65926 Frankfurt am Main, Germany;2. University of Hamburg, Department of Chemistry, Pharmaceutical and Medicinal Chemistry, Bundesstraße 45, 20146 Hamburg, Germany;1. Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland;2. Institute for Problems of Chemical Physics of the Russian Academy of Sciences, Semenov Prospect 1, Chernogolovka, Moscow Region, 142432, Russia;3. Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden;4. The Branch of Talrose Institute for Energy Problems of Chemical Physics of Russian Academy of Sciences, Semenov Prospect 1/10, Chernogolovka, Moscow region, 141432, Russia;5. Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland;6. Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Nobel st. 3, Moscow, 143026, Russian Federation;1. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China;2. Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu, Sichuan 610207, PR China;3. Physics Department, Baptist University of Hong Kong, Hong Kong SAR, PR China;4. Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, PR China;1. College of Chemistry & Chemical Engineering, YangZhou University, YangZhou, Jiangsu 225002, People’s Republic of China;2. Department of Chemistry, Jouybar Branch, Islamic Azad University, Jouybar, Iran;3. Laboratory and Equipment Management Office,Taizhou University, Taizhou, Jiangsu 225300, People’s Republic of China |
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| Abstract: | The solubility of 2,3,4,5-tetrabromothiophene in (ethanol + tetrahydrofuran) binary solvent mixtures was measured within the temperature range from (278.15 to 322.15) K. The solubility increases with the rise of temperature, while it decreases with increasing ethanol content at constant temperature. The experimental data were fitted using the two variants of the combined nearly ideal binary solvent/Redlich–Kister (CNIBS/R–K) equation and the Jouyban–Acree equation, respectively. All the three equations were proven to give good representations of the experimental values. Computational results showed that the variant two of CNIBS/R–K equation was superior to the other two equations. The thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy, were calculated by the van’t Hoff analysis. The values of both the enthalpy change and the standard molar Gibbs free energy change of solution were positive, which indicated that the process was endothermic. |
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| Keywords: | Tetrabromothiophene Solubility–temperature dependence Correlation Enthalpy |
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