Enthalpies of dissolution of pyridoxin and pyridoxal-5′-phosphate in water and in aqueous solutions of KOH at 298.15 K

Krutova, O. N.; Lytkin, A. I.; Chernikov, V. V.; Volkov, A. V.; Mokhova, Yu. V.; Крутов, П. Д.

doi:10.1016/j.molliq.2021.116773

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…As shown in Figures and S1–S3, the partial pressure of SO 2 in the gas phase and the concentration of SO 2 in the liquid phase are linearly correlated when the temperature, pressure, and solution concentration are kept constant. The linear extrapolation curves pass through the zero point for all temperatures and DGME ratios, which indicates that all the absorption curves were physical absorption processes and obey Henry’s law . The slope obtained in the fitting was approximated as Henry’s constant and is listed in Table .…”

Section: Resultsmentioning

confidence: 96%

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Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Liu,

Zhang,

Guo

et al. 2024

J. Chem. Eng. Data

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In this paper, a diethylene glycol monomethyl ether (DGME) + dimethyl sulfoxide (DMSO) system was used for the absorption of dilute SO2, and the gas–liquid equilibrium (GLE) data of the binary system for SO2 at p = 123.15 kPa and T= (303.15 K-318.15 K) were measured by a GLE device. Meanwhile, different temperatures and different ratios were also measured, Henry’s constants at different temperatures were fitted based on the measured data, and the thermodynamic parameters of dissolution enthalpy, dissolution entropy, and dissolution Gibbs free energy of the dissolution process were calculated. The results of five cycles of SO2 absorption and resolution showed that the maximum absorption of SO2 in the binary system was 0.85 g/g. The desorption rate could reach 97%, and the absorption and desorption capacities did not decrease significantly after the cycle. The mechanism of SO2 absorption in the binary system was discussed and analyzed by combining spectral analysis and quantum chemistry. The spectroscopic results show that the weak interaction forces between DGME, DMSO, and SO2 are hydrogen bonding forces and dipole–dipole interaction forces, which lay the theoretical foundation for the application and practice of binary hybrid systems. This can provide important GLE data for the design and operation of organic solvent absorption and desorption of SO2 in flue gas desulfurization, and the prepared absorbent has a potential industrial application value.

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Section: Resultsmentioning

confidence: 96%

“…The linear extrapolation curves pass through the zero point for all temperatures and DGME ratios, which indicates that all the absorption curves were physical absorption processes and obey Henry's law. 19 The slope obtained in the fitting was approximated as Henry's constant and is listed in Table 3.…”

Section: Absorption and Desorption Experimentsmentioning

confidence: 99%

Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Liu,

Zhang,

Guo

et al. 2024

J. Chem. Eng. Data

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show abstract

Mathematical Processing of Experimental Data Obtained with Ampoule and Titration Calorimeters Equipped with Different Types of Cells

Meshkov

Гамов

2023

Russ. J. Phys. Chem.

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Effect of the Nature of Supporting Electrolyte on the Thermodynamic Parameters of the Stepwise Dissociation of Glycyl-D-Phenylalanine in Aqueous Solution

Krutova,

Bazanov,

Chernikov

et al. 2023

Russ. J. Phys. Chem.

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Enthalpies of dissolution of pyridoxin and pyridoxal-5′-phosphate in water and in aqueous solutions of KOH at 298.15 K

Cited by 5 publications

References 7 publications

Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Mathematical Processing of Experimental Data Obtained with Ampoule and Titration Calorimeters Equipped with Different Types of Cells

Effect of the Nature of Supporting Electrolyte on the Thermodynamic Parameters of the Stepwise Dissociation of Glycyl-D-Phenylalanine in Aqueous Solution

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Enthalpies of dissolution of pyridoxin and pyridoxal-5′-phosphate in water and in aqueous solutions of KOH at 298.15 K

Cited by 5 publications

References 7 publications

Experimental Solubility and Absorption Mechanism of Dilute SO2 in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Experimental Solubility and Absorption Mechanism of Dilute SO2 in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Mathematical Processing of Experimental Data Obtained with Ampoule and Titration Calorimeters Equipped with Different Types of Cells

Effect of the Nature of Supporting Electrolyte on the Thermodynamic Parameters of the Stepwise Dissociation of Glycyl-D-Phenylalanine in Aqueous Solution

Contact Info

Product

Resources

About

Enthalpies of dissolution of pyridoxin and pyridoxal-5′-phosphate in water and in aqueous solutions of KOH at 298.15 K

Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide

Experimental Solubility and Absorption Mechanism of Dilute SO₂ in the Binary System of Diethylene Glycol Monomethyl Ether and Dimethyl Sulfoxide