Hydrogen Sulfide Solubility in Aqueous <i>N</i>-Methylpyrrolidone Solution

Shokouhi, Mohammad; Jalili, Amir Hossein; Babakhani, Ensieh Ganji

doi:10.1021/acs.jced.0c00923

Cited by 4 publications

(2 citation statements)

References 67 publications

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“…The residual solids in different solvent mixtures and raw material of MET·HCl were determined by X-ray powder diffraction (XRPD) and are shown in Figure . The main peaks are mainly at 12.13, 17.42, 24.51, and 37.05° which are consistent with the crystal form A previously reported in the literature. , The positions of main peaks have no change, demonstrating that no polymorphic transformation or solvate formation occurred during the whole experiment. , The same XRPD patterns of all solid samples also indicate that HCl did not lost during the entire experiments. The properties of liquid such as pH values were also analyzed, and the results verified that the excess solid could not release HCl into the solution …”

Section: Resultssupporting

confidence: 90%

“…29,30 The positions of main peaks have no change, demonstrating that no polymorphic transformation or solvate formation occurred during the whole experiment. 31,32 The same XRPD patterns of all solid samples also indicate that HCl did not lost during the entire experiments. The properties of liquid such as pH values were also analyzed, and the results verified that the excess solid could not release HCl into the solution.…”

Section: Introductionmentioning

confidence: 53%

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Determination and Correlation of Solubility of Metformin Hydrochloride in Aqueous Binary Solvents from 283.15 to 323.15 K

Sun

Wang

et al. 2022

ACS Omega

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Metformin hydrochloride (MET•HCl) is one of the most widely used oral hypoglycemic drugs in the world. In addition to hypoglycemic effects, MET•HCl also has anti-inflammatory, anti-tumor, anti-aging, and other effects, showing good efficacy and safety of single and combined treatment. The solubility of MET•HCl in water, water + N,N-dimethylformamide, water + acetonitrile, and water + n-propanol was measured by the gravimetric method under atmospheric pressure at temperatures ranging from 283.15 to 323.15 K. The solubility of MET•HCl has a positive correlation with temperature and water content. The experimental solubility data in binary solvents was correlated by the modified Apelblat model, CNIBS/R-K model, Apelblat− Jouyban−Acree model, and λh model. By comparing the average ARD % values of the four models, it is found that the modified Apelblat model (ARD % = 1.26) provides better correlation. Hansen solubility parameters and apparent thermodynamic parameters were calculated to analyze the solubility behavior, indicating that the dissolution process is endothermic and entropically favorable.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 53%

Determination and Correlation of Solubility of Metformin Hydrochloride in Aqueous Binary Solvents from 283.15 to 323.15 K

Sun

Wang

et al. 2022

ACS Omega

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The sustainable microwave approach to H2S and RSH activation into Di- and Trisulfides in N-Methylpyrrolidone

Galustyan,

Burmistrova,

Fokin

et al. 2024

Chemical Engineering and Processing - Process Intensification

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Intelligent modeling of hydrogen sulfide solubility in various types of single and multicomponent solvents

Moradkhani

Hosseini

Ranjbar

et al. 2023

Sci Rep

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This study aims to study the solubility of acid gas, i.e., hydrogen sulfide (H2S) in different solvents. Three intelligent approaches, including Multilayer Perceptron (MLP), Gaussian Process Regression (GPR) and Radial Basis Function (RBF) were used to construct reliable models based on an extensive databank comprising 5148 measured samples from 54 published sources. The analyzed data cover 95 single and multicomponent solvents such as amines, ionic liquids, electrolytes, organics, etc., in broad pressure and temperature ranges. The proposed models require just three simple input variables, i.e., pressure, temperature and the equivalent molecular weight of solvent to determine the solubility. A competitive examination of the novel models implied that the GPR-based one gives the most appropriate estimations with excellent AARE, R2 and RRMSE values of 4.73%, 99.75% and 4.83%, respectively for the tested data. The mentioned intelligent model also performed well in describing the physical behaviors of H2S solubility at various operating conditions. Furthermore, analyzing the William's plot for the GPR-based model affirmed the high reliability of the analyzed databank, as the outlying data points comprise just 2.04% of entire data. In contrast to the literature models, the newly presented approaches proved to be applicable for different types of single and multicomponent H2S absorbers with AAREs less than 7%. Eventually, a sensitivity analysis based on the GPR model reflected the fact that the solvent equivalent molecular weight is the most influential factor in controlling H2S solubility.

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Hydrogen Sulfide Solubility in Aqueous N-Methylpyrrolidone Solution

Cited by 4 publications

References 67 publications

Determination and Correlation of Solubility of Metformin Hydrochloride in Aqueous Binary Solvents from 283.15 to 323.15 K

Determination and Correlation of Solubility of Metformin Hydrochloride in Aqueous Binary Solvents from 283.15 to 323.15 K

The sustainable microwave approach to H2S and RSH activation into Di- and Trisulfides in N-Methylpyrrolidone

Intelligent modeling of hydrogen sulfide solubility in various types of single and multicomponent solvents

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