Solubility and thermodynamic modeling of calcium sulfate dihydrate in three organic aqueous solutions (ethylene glycol, acetic acid, dimethyl sulfoxide) from 303.15 K to 348.15 K

Yu, Bingjie; Wang, Junqi; Miao, Shanshan; Ren, Yongsheng

doi:10.1016/j.jct.2021.106684

Cited by 4 publications

(2 citation statements)

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“…Four empirical models (van’t Hoff model, modified Apelblat model, CNIBS/R-K model, and Jouyban–Acree–Apelblat model) were used to fit the experimental solubility values of KF in selected solvent systems. It should be noted that the solid–liquid equilibrium models used are all empirical models, which only exhibit correlational effects on solubility data. , The citation for state-of-the-art thermodynamic models of electrolyte solutions will be explored in future studies.…”

Section: Methodsmentioning

confidence: 99%

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Determination and Correlation of the Solubility of Potassium Fluoride in Eight Single Solvents and Four Binary Solvent Mixtures at Different Temperatures

Xue,

Wang,

Chen

et al. 2024

J. Chem. Eng. Data

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This study investigated the mole fraction solubility of potassium fluoride in eight single solvents (methanol, ethanol, n-propanol, n-butanol, 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, and 1-methoxy-2-propanol) and four binary solvent mixtures (methanol + isopropanol, methanol + acetone, methanol + acetonitrile, and methanol + ethyl acetate) using the gravimetric method within the temperature range of 278.15 to 323.15 K (with 5 K intervals). The results demonstrated a gradual decrease in the solubility of potassium fluoride with increasing temperatures across all investigated solvent systems. For the four binary solvent mixtures studied, the solubility of potassium fluoride exhibited an increase with a higher mass fraction of methanol at a constant temperature. The experimental solubility data were correlated using four empirical models (van't Hoff model, modified Apelblat model, CNIBS/R-K model, and Jouyban−Acree−Apelblat model), all of which exhibited excellent fitting performance. Comparison of different model fitting results revealed that the modified Apelblat model yielded lower values for relative deviation (ARD) and root-mean-square deviation (RMSD), indicating its superior fitting accuracy and suitability for fitting the experimental data of potassium fluoride in the selected solvents.

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Section: Methodsmentioning

confidence: 99%

“…It should be noted that the solid−liquid equilibrium models used are all empirical models, which only exhibit correlational effects on solubility data. 21,22 The citation for state-of-the-art thermodynamic models of electrolyte solutions will be explored in future studies.…”

Section: ≤0001 Gc Amentioning

confidence: 99%