Effect of [Bmim][Br] and [Emim][HSO4] on the solution properties of pyridoxine HCl at various temperatures: A physicochemical, thermodynamic and spectroscopic approach

Richu,; Bandral, Akshita; Singh, Himani; Kumar, Ashwani

doi:10.1016/j.molliq.2022.120024

Cited by 6 publications

(2 citation statements)

References 60 publications

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“…This is why V ϕ 0 increases with temperature. Additionally, the enhancement in V ϕ 0 with increasing molality is caused by the solute molecules’ increased van der Waals (vdW) volume …”

Section: Resultsmentioning

confidence: 99%

Explorations on Solute–Solvent Interactions of Tripotassium Citrate and Sodium Benzoate in Aqueous 1-Ethyl-3-methylimidazolium Ethyl Sulfate Solutions: Physicochemical, Spectroscopic, and Computational Approaches

Singh,

Majid,

Richu

et al. 2023

J. Chem. Eng. Data

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The present research work is concerned with the thermophysical properties of tripotassium citrate and sodium benzoate in aqueous (0.10, 0.15, and 0.20) mol·kg–1 1-ethyl-3-methylimidazolium ethyl sulfate solutions at temperatures ranging (293.15–313.15) K and 101.3 kPa pressure. The experimentally acquired density, sound speed, and viscosity data have been employed to determine numerous densimetric, acoustic, and viscometric parameters including the apparent molar volumes (V ϕ), partial molar volumes at infinite dilution (V ϕ 0), limiting apparent molar expansibilities (E ϕ 0), apparent molar isentropic compressibilities (K ϕ,s), transfer properties, hydration number (n H), viscosity B-coefficients, and thermodynamic parameters of viscous flow (Δμ1 0, Δμ2 0, ΔH 2 0, and TΔS 2 0). The above-mentioned parameters have been evaluated for the examination of interactions that are prevailing among tripotassium citrate/sodium benzoate and 1-ethyl-3-methylimidazolium ethyl sulfate in an aqueous medium. In addition, UV spectral analysis was used for the examination of interactions existing among the considered systems. Furthermore, the band gaps between the highest occupied molecular orbital and the lowest unoccupied molecular orbital for the studied systems and the interaction characteristics have been calculated using density functional theory. The obtained results inferred the predominance of the hydrophilic–hydrophilic interactions in the systems under investigation.

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“…This is why V ϕ 0 increases with temperature. Additionally, the enhancement in V ϕ 0 with increasing molality is caused by the solute molecules’ increased van der Waals (vdW) volume …”

Section: Resultsmentioning

confidence: 99%

Explorations on Solute–Solvent Interactions of Tripotassium Citrate and Sodium Benzoate in Aqueous 1-Ethyl-3-methylimidazolium Ethyl Sulfate Solutions: Physicochemical, Spectroscopic, and Computational Approaches

Singh,

Majid,

Richu

et al. 2023

J. Chem. Eng. Data

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“…Order of Δ t V 2 ° follows the following trend: fructose < sucrose < maltose . Dominance of electrostatic interactions over hydrophobic interactions in aqueous sodium dodecyl sulfate when Th.HCl is the solute has also been reported . Thus, in an aqueous solution various interactions are possible among the solute and cosolute.…”

Section: Results and Discussionmentioning

confidence: 99%

Volumetric and UV–Visible Spectroscopic Evaluation of Interactions between Thiamine Hydrochloride and Protic Ionic Liquids in Aqueous Solutions

Amirchand,

Singh

2023

J. Chem. Eng. Data

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In this work, volumetric properties and UV−visible spectroscopic analyses were performed to investigate the kind of interactions occurring among thiamine hydrochloride (Th.HCl) and protic ionic liquids (PILs) in aqueous solutions at temperatures (298.15−313.15 K) and at 0.1 MPa. Interactions between drug molecule and three PILs (namely, ethanolammonium acetate, EAAc, ethanolammonium butyrate, EABu, and ethanolammonium hexanoate, EAHx) were evaluated. Density, ρ, and speed of sound, c, of Th.HCl in water and in mixed aqueous solutions of three PILs with concentrations (0.05, 0.10, 0.15, and 0.20) mol kg −1 were measured at different temperatures. Further, using these experimental values, apparent molar volumes, apparent molar isentropic compressibilities, and volumetric transfer parameters were calculated to understand and infer the interactions. Positive transfer volumes indicate the presence of hydrophilic interactions, whereas the negative transfer volumes observed indicate the presence of hydrophobic interactions among the components of PILs (cations/ anions) and Th.HCl. The presence of hydrogen bonding interactions was indicated by a hyperchromic shift in the UV−visible absorption spectra of the ternary solutions.

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Explorations on thermophysical properties of nitrogenous bases (uracil/thymine) in aqueous l-histidine solutions at various temperatures

Rajput

Singh

Bandral

et al. 2022

Journal of Molecular Liquids

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Effect of [Bmim][Br] and [Emim][HSO4] on the solution properties of pyridoxine HCl at various temperatures: A physicochemical, thermodynamic and spectroscopic approach

Cited by 6 publications

References 60 publications

Explorations on Solute–Solvent Interactions of Tripotassium Citrate and Sodium Benzoate in Aqueous 1-Ethyl-3-methylimidazolium Ethyl Sulfate Solutions: Physicochemical, Spectroscopic, and Computational Approaches

Explorations on Solute–Solvent Interactions of Tripotassium Citrate and Sodium Benzoate in Aqueous 1-Ethyl-3-methylimidazolium Ethyl Sulfate Solutions: Physicochemical, Spectroscopic, and Computational Approaches

Volumetric and UV–Visible Spectroscopic Evaluation of Interactions between Thiamine Hydrochloride and Protic Ionic Liquids in Aqueous Solutions

Explorations on thermophysical properties of nitrogenous bases (uracil/thymine) in aqueous l-histidine solutions at various temperatures

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