Dielectric and thermodynamic properties in a binary mixture of dimethylene chloride with formamide

Pawar, V.P.; Patil, A.V.

doi:10.1016/j.molliq.2015.02.035

Cited by 10 publications

(4 citation statements)

References 29 publications

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“…Example extrapolation for determination of the static dielectric constant (ε s ) with formamide (F). Literature values for static permittivity are shown as crosses. ,– …”

Section: Experimental Methodsmentioning

confidence: 99%

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Correlation of Dielectric Properties with Structure and H-Bonding for Liquids

Bennett,

Calisir,

Yang

et al. 2023

J. Phys. Chem. C

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A study focused on the correlation among dielectric properties, molecular structure, and H-bonding is presented using liquid formamides with increasing carbon chain lengths as a model series. 1 H NMR is used to determine the extent of H-bonding via Abraham solute hydrogen bond acidity parameter, A. The results show a clear quantitative correlation, with higher A linked with increased relaxation times (τ) and a drop in the static dielectric constants (ε s ), with differences between the 1 and 2°amides observed. Overall, the findings advance our understanding of the intricate relationship between dielectric properties and H-bonding, with potential applications toward the design of materials exhibiting tailored dielectric properties and the study of amide-containing molecules (such as DNA, peptides, proteins, and nylon polymers) and other liquids which may associate via H-bonding.

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“…Example extrapolation for determination of the static dielectric constant (ε s ) with formamide (F). Literature values for static permittivity are shown as crosses. ,– …”

Section: Experimental Methodsmentioning

confidence: 99%

“…All measurements were performed at 298 K, unless otherwise stated. ε s and ε ∞ literature values for F, ,,– NMF ,,,,,,,– , and NEF. – …”

Section: Experimental Methodsmentioning

confidence: 99%

Correlation of Dielectric Properties with Structure and H-Bonding for Liquids

Bennett,

Calisir,

Yang

et al. 2023

J. Phys. Chem. C

View full text Add to dashboard Cite

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“…Traditionally, due attention is given to the choice of extractant but assortment of diluent is also equally important since it affects the extractant‐diluent chemical stability, act of the extractant, and solubility of the extracted metal complex. Therefore, inspecting the physicochemical properties of extractant‐diluent such as density, viscosity, polarity, and thermal stability is obligatory for the study of metal extraction efficiency in liquid–liquid extraction process 12–14 . Tables 3 and 4 enumerate structure and physical properties of different extractants and diluents commonly used in the liquid–liquid extraction techniques.…”

Section: Molecular Interactions In Solvent Extraction Systemsmentioning

confidence: 99%

“…Therefore, inspecting the physicochemical properties of extractant-diluent such as density, viscosity, polarity, and thermal stability is obligatory for the study of metal extraction efficiency in liquid-liquid extraction process. [12][13][14] Tables 3 and 4 enumerate structure and physical properties of different extractants and diluents commonly used in the liquid-liquid extraction techniques.…”

Section: Physico-chemical Properties At a Glancementioning

confidence: 99%

Scrutiny of physico‐chemical properties of extractant‐diluent phase: Keystone of extraction systems

Sahu

Pradhan

Mishra

2022

Asia-Pacific J Chem Eng

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Solvent extraction is one of the hydro metallurgical techniques adopted due to its ease for efficient separation of metal ions. The separation and extraction of metals are enabled using privileged metal distribution between the aqueous and organic phase. Commercially available solvent extractants and recently the designer solvents like ionic liquids have gained adequate attention in the area of separation science for the retrieval of different metal ions. Diluents play an important role by ensuring the improved hydrodynamics of the extraction system. The physico‐chemical characteristics of the organic phase solution need to be scrutinized thoroughly in order to optimize the extraction conditions. Investigation on the interaction between extractant and diluent at molecular level is vital for the assessment of extraction efficiency. Density, viscosity, dielectric constant, refractive index, conductivity, and acoustic properties provide evidence on the molecular organizations between these unlike molecules. The aim of this review is to project on the importance of physical, chemical, and thermodynamic properties for fabricating an efficient combination of extractants‐diluents to achieve maximum extraction output.

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Effect of n‐Hexane on the Dielectric and Refractive Properties of Octanoic Acid/tri‐n‐Butylphosphate: A Comparison

2022

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The diluent has influence on the intensity and nature of interaction among the constituents during solvent extraction. The physico‐chemical property of the phase where diluent is present required examination for optimizing the extraction conditions. The assessment of extraction efficiency is done on the basis of interaction between extractant and diluent. Densities, dielectric constants, and refractive indices have been measured for the binary mixture of octanoic acid/tri‐n‐butyl phosphate (TBP) with n‐hexane at T=303, 308 and 313 K over the whole constitution range. The dielectric constant, molar polarisation, refractive index and molar refraction values are maximum at 0.7674 mole fraction of octanoic acid and at 0.6577 of tri‐n‐butyl phosphate in binary mixture with n‐hexane. The values were used to further find out the molar polarization, molar refraction, correlation factor and excess Gibbs free energy. The excess values of the different properties were evaluated and fitted to the Redlich‐Kister polynomial equation. Negative values of ϵE were observed for octanoic acid and n‐hexane binary mixture at 308 and 313 K suggesting the dipoles were not aligned. For tri‐n‐butyl phosphate and n‐hexane binary mixture, positive ϵE values indicated the reduced number of aligned dipoles. The correlated motion of dipoles was explained by calculating the g values using Kirkwood‐Frohlich equation with the aid of dielectric and refractive index values of the pure solutes.

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Dielectric and thermodynamic properties in a binary mixture of dimethylene chloride with formamide

Cited by 10 publications

References 29 publications

Correlation of Dielectric Properties with Structure and H-Bonding for Liquids

Correlation of Dielectric Properties with Structure and H-Bonding for Liquids

Scrutiny of physico‐chemical properties of extractant‐diluent phase: Keystone of extraction systems

Effect of n‐Hexane on the Dielectric and Refractive Properties of Octanoic Acid/tri‐n‐Butylphosphate: A Comparison

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