Thermodynamic properties and IR studies of binary mixtures of benzyl amine with alkyl esters at different temperatures

Rajalakshmi, R.; Ravikumar, S.; Gaba, Rekha; Pandiyan, V.

doi:10.1016/j.cdc.2019.100278

Cited by 5 publications

(3 citation statements)

References 61 publications

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“…Further, it is also observed that density increases nonlinearly in all binary mixtures except in carbon disulphide, carbon tetrachloride and dioxane mixtures with increase in mole fraction of DEHPA. This behavior is different from the ideal mixture behavior which can be attributed to the intermolecular interaction in the systems [18]. According to Kannappan et al [19], as such the gradual increase in density, viscosity and ultrasonic velocity with solute concentration is due to the association between solute and solvent molecules.…”

Section: Resultsmentioning

confidence: 83%

Acoustic assessment in binary mixtures of a polar nuclear extractant, DEHPA with eight non polar diluents at 303.15K – a comparative study

2020

Biointerface Res Appl Chem

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Ultrasonic velocities (U), viscosities (η) and densities (ρ) of binary liquid mixtures of di–(2-ethylhexyl) phosphoric acid (DEHPA) with eight non polar diluents viz. n-pentane, n-hexane, n-heptane, benzene, carbon tetrachloride, cyclohexane, carbon disulphide and dioxane are measured at temperature 303.16 K and 0.01MPa for entire range of concentration. The measured data are used to compute acoustic impedance (Z), isentropic compressibility, intermolecular free length, free volume, internal pressure and viscous relaxation time. The excess properties are also evaluated from the measured data to study inter- and intra-molecular interaction between components of liquid mixtures. The research findings may be utilized in solvent extraction process to enhance extraction efficacy.

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Section: Resultsmentioning

confidence: 83%

Acoustic assessment in binary mixtures of a polar nuclear extractant, DEHPA with eight non polar diluents at 303.15K – a comparative study

2020

Biointerface Res Appl Chem

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“…This is in line with Rajalakshmi et al observation. 20 Plots of deviation in excess viscosity (η E ) against mole fraction at 25, 30, 35 and 40 °C for methanol + methyl acetate, methanol + butyl acetate and methanol + pentyl acetate are presented in Figure 2 (a-d). η E values were found to be negative for methanol + methyl acetate and positive for methanol + butyl acetate and methanol + pentyl acetate systems.…”

Section: Experimental Results Analysismentioning

confidence: 99%

Volumetric and viscometric studies of binary mixtures of methanol and some alkyl acetates at varying temperatures

Ekezie,

Cookey,

Maduelosi

2023

Table of contents S.Afr.j.chem.

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The degree of molecular interactions between mixed solvent molecules and thus ideal behavior results from the molecular architecture and chemical nature of component solvents. This understanding is essential in the design and applications of both pure and mixed solvent systems. Density and viscosity measurements of pure and binary mixtures of methanol and n-methyl acetate, n-butyl acetate, and n-pentyl acetate were carried out at different compositions of methanol and temperatures of 25, 30, 35, 40 °C. The experimental data obtained were correlated to the Redlich-Kister equation from where the excess functions; excess molar volumes, excess viscosities, excess Gibbs free energies of activation for viscous flow, fitting coefficients and standard deviations were obtained. The viscosity values were correlated with Hind et al, Kendral and Monroe, Grunberg and Nissan and Frenkel semi empirical models to ascertain the best fit for the systems. The results obtained have been discussed in terms of the structural differences and nature of the interactions between molecules of the mixed solvents.

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“…Amines are also utilized in dye formation, corrosion inhibitors, the pharmaceutical industry, metal ion separation, etc. , Esters are derived from carboxylic acid and due to their high solvation power and high dipole moment, they have great importance in many industrial processes. Esters contribute as H-bond acceptors in H-bonding . Alcohols are self-associated molecules, and their interaction increases or decreases depending on other solvents, concentration in the mixture, and their structure. − Therefore, the study of ternary liquid mixtures having alcohol, amine, and alkyl acetate will be important in various aspects.…”

Section: Introductionmentioning

confidence: 99%

Volumetric, Viscometric, Acoustic, and Optical Properties of Ternary Liquid Mixtures Containing 1-Propanol, 1,3-Diaminopropane, and Methyl Acetate at Temperatures of 298.15–318.15 K

Parmar,

Rani,

Kumar

et al. 2023

J. Chem. Eng. Data

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The molecular interactions of ternary mixtures of 1-propanol + 1,3-diaminopropane + methyl acetate were studied by the insight into the physicochemical properties of given liquid mixtures. Density, viscosity, speed of sound, and refractive index data were measured for 1P, 1,3-DAP, MAc, and their ternary liquid mixtures at five different temperatures (T = 298.15–318.15 K) and at 0.1 MPa pressure. Based on the experimental data, excess molar volume, deviation in viscosity, deviation in ultrasonic speed, excess molar isentropic compressibility, excess free volume, excess intermolecular free length, excess available volume, and deviation in refractive index were calculated, and these evaluated properties were fitted to the Singh equation. The excess molar volume data were also fitted to the Nagata and Cibulka equations. Further, the Kohler model, Tsao–Smith model, Radojkovic model, Jacob–Fitzner model, and Rastogi model were used to calculate the excess molar volume values. Different correlations were applied for the estimation of the speed of sound and refractive index values.

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Thermodynamic properties and IR studies of binary mixtures of benzyl amine with alkyl esters at different temperatures

Cited by 5 publications

References 61 publications

Acoustic assessment in binary mixtures of a polar nuclear extractant, DEHPA with eight non polar diluents at 303.15K – a comparative study

Acoustic assessment in binary mixtures of a polar nuclear extractant, DEHPA with eight non polar diluents at 303.15K – a comparative study

Volumetric and viscometric studies of binary mixtures of methanol and some alkyl acetates at varying temperatures

Volumetric, Viscometric, Acoustic, and Optical Properties of Ternary Liquid Mixtures Containing 1-Propanol, 1,3-Diaminopropane, and Methyl Acetate at Temperatures of 298.15–318.15 K

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