Solubility of 1,1′-(Butane-1,4-diyl)-bis(3-methylpyridinium) Dihexafluorophosphate in Different Solvents from (288.15 to 333.15) K

Wang, Jun; Wu, Shao-Yi; Yang, Xu-Zhao

doi:10.1021/je9010954

Cited by 6 publications

(3 citation statements)

References 26 publications

(36 reference statements)

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“…They greatly reduced the uncertainty of estimation and increased the credibility of the prediction value from a theoretical and logical point of view. Previously, the λ h equation and the modified Apelblat equation were also applied to correlate the solubility data of easy-made imidazolium ILs , and pyridinium ILs in many solvents, but none of them could generate further correlation for widespread prediction. Therefore, excellent performances for these three ILs in this report are probably due to the particular molecular properties of benzothiazolium portion in the IL structures, which may also have intrinsic relationship with their temperature-sensitive properties.…”

Section: Resultsmentioning

confidence: 99%

Measurement and Correlation of Solubility of Benzothiazolium Ionic Liquids in Ethanol + Ethyl Benzoate

Yao

2020

J. Chem. Eng. Data

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The solubilities of benzothazolium-based ionic liquids (ILs) [HBth][BF4], [HBth][CH3SO3], and [HBth][p-TSA] in binary ethanol + ethyl benzoate solvents were measured using the equilibrium method with the temperature range from 233.2 to 293.7 K at atmospheric pressure. Results of these measurements were correlated by both λh equation and the modified Apelblat equation. It was found that both models gave satisfactory correlation results. In the λh model, the average relative deviations were 0.7145, 0.7845, and 0.8119% for [HBth][BF4], [HBth][CH3SO3], and [HBth][p-TSA], respectively. Interestingly, the parameters of λ and h for the λh model and A, B, and C for the modified Apelblat model were simultaneously expressed as functions of solvent composition (x sol) for the first time. Furthermore, solubilities of these three ILs in the binary system were predicted through these two sets of self-created correlation equations with ideal performances. The total average relative deviations were less than 2.2% for both models. These successful in-depth correlations and validated prediction results have guaranteed the accuracy of experimental solubility data and provide us a reliable method for accurate solubility prediction at any temperature with any solvent composition. This developed calculation method in this report lays a foundation for accurate industrial recovery of ILs and gives us valuable guidance for the design of the specific purification process to acquire desired purity of the product in industrial production.

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Section: Resultsmentioning

confidence: 99%

Measurement and Correlation of Solubility of Benzothiazolium Ionic Liquids in Ethanol + Ethyl Benzoate

Yao

2020

J. Chem. Eng. Data

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“…There is a pressing need to develop better solvents for separation. The solubilities of ILs in different solvents have been investigated extensively. − …”

Section: Introductionmentioning

confidence: 99%

Solubility of 3,3′-(Oxidi-2,1-ethanediyl)bis[1-methyl-imidazolium] Dihexafluorophosphate in Water, Methanol, Ethanol, Acetone, and Acetonitrile and Binary Mixtures (Water + DMF) from (283.00 to 323.00) K

Guo

Wang

et al. 2015

J. Chem. Eng. Data

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3,3′-(Oxidi-2,1-ethanediyl)bis[1-methyl-imidazolium] dihexafluorophosphate ([C4O(mim)2][PF6]2) was synthesized and confirmed with 1H NMR and FT-IR. The thermal stability of [C4O(mim)2][PF6]2 was studied with differential scanning calorimetry and thermogravimetric analyses. Using the dynamic method, the solubility of [C4O(mim)2][PF6]2 in five different pure solvents (water, methanol, ethanol, acetone, and acetonitrile) and binary mixtures (water + DMF) was measured at the temperature range from (283.00 to 323.00 K) at atmospheric pressure. The solubility of [C4O(mim)2][PF6]2 in those selected solvents increased with increasing temperature and DMF contents, but the rate of solubility is different. The experimental data were correlated with the modified Apelblat equation. Also, the solubility of [C4O(mim)2][PF6]2 and [C6O2(mim)2][PF6]2 was been compared in the same solvent.

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“…There is an urgent need to develop better solvents for large scale chemical separation. The solubilities of room temperature ILs in different solvents have been investigated extensively. − To our knowledge, relevant researches about the solubilities of dicationic ILs in binary solvent mixture were still rare. − …”

Section: Introductionmentioning

confidence: 99%

Solubilities of 1,1′-[1,2-Ethanediylbis(oxy-1,2-ethanediyl)]bis-[3-methyl-1H-imidazolium-1-yl] Dihexafluorophosphate in Water, Methanol, Ethanol, Dimethylformamide, Dimethyl Sulfoxide, and (Acetone + Water) Binary Solvent Mixtures

et al. 2014

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The chemical structure of a new gemini dicationic imidazolium ionic liquid,was established by 1 HNMR. The thermal stability of [C 6 O 2 (mim) 2 ][PF 6 ] 2 was studied with differential scanning calorimetry and thermogravimetric analyses. With the use of the analytical stirred-flask method at atmospheric pressure, the solubilities of [C 6 O 2 (mim) 2 ]-[PF 6 ] 2 in water, methanol, ethanol, dimethylformamide, dimethyl sulfoxide, and (acetone + water) binary solvent mixtures were measured from (283.00 to 323.00) K. The experimental data was correlated with the modified Apelblat equation.

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Solubility of 1,1′-(Butane-1,4-diyl)-bis(3-methylpyridinium) Dihexafluorophosphate in Different Solvents from (288.15 to 333.15) K

Cited by 6 publications

References 26 publications

Measurement and Correlation of Solubility of Benzothiazolium Ionic Liquids in Ethanol + Ethyl Benzoate

Measurement and Correlation of Solubility of Benzothiazolium Ionic Liquids in Ethanol + Ethyl Benzoate

Solubility of 3,3′-(Oxidi-2,1-ethanediyl)bis[1-methyl-imidazolium] Dihexafluorophosphate in Water, Methanol, Ethanol, Acetone, and Acetonitrile and Binary Mixtures (Water + DMF) from (283.00 to 323.00) K

Solubilities of 1,1′-[1,2-Ethanediylbis(oxy-1,2-ethanediyl)]bis-[3-methyl-1H-imidazolium-1-yl] Dihexafluorophosphate in Water, Methanol, Ethanol, Dimethylformamide, Dimethyl Sulfoxide, and (Acetone + Water) Binary Solvent Mixtures

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