Study of molecular interactions in binary liquid mixtures containing tri-n-butylamine with 2-pentanone, 3-pentanone, and 4-methyl-2-pentanone: A thermophysical approach

Dubey, Gyan Prakash; Chawla, Sonia; Kaur, Prabjot

doi:10.1016/j.molliq.2016.07.060

Cited by 13 publications

(3 citation statements)

References 38 publications

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“…Density values are shown in Table S3. In general, all results are in agreement with literature data for 2-phenylethanol, ,− methyl isobutyl ketone, − 2-methyl-3-buten-2-ol, − 2-octanone, ,− and dibutyl phthalate − with ARD (%) values less than 0.5%. All the ARD (%) values are obtained as eq : where N exp and N lit are the density or viscosity of the pure compound at a specific temperature and pressure of data from this work and from the literature, respectively.…”

Section: Resultssupporting

confidence: 91%

Solvent Selection for the Extraction of 2-Phenylethanol from Aqueous Phases: Density and Viscosity Studies

et al. 2022

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An interesting alternative to the chemically produced 2-phenylethanol is its biotechnological synthesis. However, one of the drawbacks of this process is that the synthesized solute is typically toxic (nonbiocompatible) to the producing microorganism in the aqueous phase. Thus, an in situ product removal technique is recommended for separating the product, for instance, by liquid−liquid extraction using a hydrophobic and biocompatible solvent. First, the liquid−liquid equilibrium between 2-phenylethanol + water was measured between 293.15 K and 323.15 K at 101.3 kPa, and modeled with PC-SAFT. Then, life cycle analysis using CHEM21 methodology, experimental data, and the perturbed-chain statistical associating fluid theory (PC-SAFT) were used to evaluate the applicability of potential solvents for 2-phenylethanol recovery from water by calculating the partition coefficient of the solute in the solvent + water biphasic system. The solvents selected were methyl isobutyl ketone, 2-methyl-3-buten-2-ol, 2-octanone, and dibutyl phthalate. Thus, density and viscosity were measured for pure 2phenylethanol, all the selected solvents, and the binary mixtures of 2-phenylethanol and each solvent. The temperature range for all the measurements was from 293.15 K to 333.15 K at 101.3 kPa. Excess volumes were calculated from the density of mixtures, obtaining negative deviations from ideality for 2-phenylethanol + 2-methyl-3-buten-2-ol, 2phenylethanol + methyl isobutyl ketone, and 2-phenylethanol + 2-octanone and positive deviations for 2-phenylethanol + dibutyl phthalate. The density was modeled with PC-SAFT and the viscosity with PC-SAFT + entropy scaling. The information on the molecular interactions between 2-phenylethanol and the extracting solvents, provided by the models fed from the performed experiments, allows reducing the further experimental load when designing the in situ extraction process from a fermentation broth.

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Section: Resultssupporting

confidence: 91%

Solvent Selection for the Extraction of 2-Phenylethanol from Aqueous Phases: Density and Viscosity Studies

et al. 2022

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“…However, they vary slightly with increasing concentration. It is apparent that this trend of change with increasing concentration indicates that there has been a molecular interaction [15]. According to these findings, the aggregation of solvent molecules around solute molecules indicates the existence of interactions enhanced as concentration increases.…”

Section: Relaxation Amplitude and Ultrasonic Attenuationmentioning

confidence: 76%

“…Ultrasonic velocity, Viscosity, Density, Relaxation time, Relaxation amplitude, Ultrasonic Attenuation, Relative Association, Isentropic Compressibility and Vander Waal's constant for aqueous solutions of Potassium metabisulphite were determined at different concentration and temperature and are presented in Tables 1 to 3 and Figs It is anticipated that this type of temperature dependence study will be useful in predicting the application of the chosen liquid at higher temperatures and will also assist in studying its molecular interactions and kinetics [14,15]. The density and viscosity of Potassium metabisulphite in aqueous solution increases with increasing concentration.…”

Section: Resultsmentioning

confidence: 99%

Physico-chemical and acoustic behaviour of Potassium metabisulphite salts in aqueous medium

Chanderasekaran,

Nithiyanantham

2023

Preprint

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Density, viscosity and ultrasonic velocity through which liquids and liquid mixtures analysed by means of understanding molecular interactions. In the present paper, relaxation time, relaxation amplitude, ultrasonic attenuation, relative association, isentropic compressibility, Vander Waal’s constant, internal pressure, equivalent conductance, cohesive energy barrier, molar volume, molar solvation number and some related parameters for aqueous solution of potassium metabisulphite at different concentration and temperature ranges have been estimated through velocity measurements at 2 MHz frequency. There has also been research on the ability of the solute to form or break structures in water solvents. A statistical method called the ANOVA technique has been employed to qualitatively analyse the obtained results. A food preservative known as potassium metabisulphite preserves the natural colour of food. In beverages such as wine, juice, and beer, it acts as a bleaching agent. Besides protecting against bacteria, it also sanitizes fermenting vessels and wine bottles. Tap water can sometimes be disinfected using it in order to remove chloramines. A living being is dependent on water to survive and plays a vital role within the environment. So, it becomes extremely relevant to investigate the physio-chemical behaviour of potassium metabisulphite salts in water.

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Study of Thermodynamic and Transport Properties for Binary Mixtures of 4-Methyl-2-pentanone and Meta-substituted Aniline Systems with PFP Theory and Correlation with the Jouyban–Acree Model at 303.15, 308.15, and 313.15 K

et al. 2022

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Study of molecular interactions in binary liquid mixtures containing tri-n-butylamine with 2-pentanone, 3-pentanone, and 4-methyl-2-pentanone: A thermophysical approach

Cited by 13 publications

References 38 publications

Solvent Selection for the Extraction of 2-Phenylethanol from Aqueous Phases: Density and Viscosity Studies

Solvent Selection for the Extraction of 2-Phenylethanol from Aqueous Phases: Density and Viscosity Studies

Physico-chemical and acoustic behaviour of Potassium metabisulphite salts in aqueous medium

Study of Thermodynamic and Transport Properties for Binary Mixtures of 4-Methyl-2-pentanone and Meta-substituted Aniline Systems with PFP Theory and Correlation with the Jouyban–Acree Model at 303.15, 308.15, and 313.15 K

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