期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 298, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2019.112015
关键词
5-Fluoro-2-oxindole; Solubility; Binary solvent mixtures; KAT-LSER model
资金
- Jiangsu Fishery Science and Technology Project [Y2018-21]
- Science and Technology Support Program of Jiangsu Province [3E2018396]
- Jiangsu Synergetic Innovation Center for Advanced Bio-Manufacture [XTB1805]
In this research, we employed a static equilibrium method to measure the solubility of 5-Fluoro-2-oxindole in nine pure solvents (n-hexane, n-propanol, tetrahydrofuran, isopropanol, methanol, ethyl acetate, N,N-dimethylformamide, acetonitrile, acetone) and three binary solvents (n-hexane+ tetrahydrofuran, ethyl acetate + tetrahydrofuran, acetonitrile + tetrahydrofuran) from 278.15 K to 323.15 K. The results demonstrate that as the temperature increases, the solubility of 5-Fluoro-2-oxindole increases in nine solvents selected. The modified Apelblat model and the lambda h model were adopted to correlate the solubility in pure solvents; meanwhile, we employed the CNIBS/R-K model and the Jouyban-Acree model to correlate the solubility in binary solvent mixtures. The maximum RAD values of modified Apelblat model and lambda h model are 0.64% and 0.71%; respectively; the maximum RMSD values are 0.076% and 0.058%. The corresponding maximum MD values of the CNIBS/R-K model and the Jouyban-Acree model are 1.27% and 2.22%. In general, these equations emerge an excellent fitting effect. (C) 2018 Elsevier B.V. All tights reserved.
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