Volumetric and viscosity properties of glycine in ionic liquid + water solutions at 298.15 K

Zhao, Yajing; Chen, Yujuan; Fang, Mengyao; Zhang, Honghao; Zhuo, Kelei

doi:10.1016/j.jct.2018.09.036

Cited by 27 publications

(6 citation statements)

References 33 publications

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“…When the contents of Gly are high enough, the addition of Gly results in the dilution of EaCl, and leads to the decrease of viscosities for mixtures. As a result, EaCl+Gly (1:4) has the highest viscosities among the four EaCl+Gly mixtures, with the value of 50.5 cP at 313.2 K. Overall, EaCl+Gly mixtures are less viscous than most ILs reported in the literature. − As is known, liquid solvents with lower viscosities are more easily to transport in pipelines, and usually have fast absorption rate for gases. Therefore, EaCl+Gly mixtures are more appropriate for application in gas absorption process than most ILs.…”

Section: Resultsmentioning

confidence: 88%

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Jiang

Zhong

Liu

et al. 2019

ACS Sustainable Chem. Eng.

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Achieving effective and reversible capture of ammonia (NH3) is an important task in the chemical industry, to avoid the air pollution potentially induced by NH3 emission, and recycle the NH3 resource for value-added productions. In this work, deep eutectic solvents (DESs) comprising ethylamine hydrochloride (EaCl) and glycerol (Gly) were designed as the media for NH3 absorption, by making use of the protic ionic nature of EaCl and multiple hydroxyl groups in Gly, which enable strong hydrogen-bonding interaction with NH3. The absorption amounts of NH3 in prepared EaCl+Gly mixtures at various temperatures and pressures were experimentally measured. It is found that the NH3 capacities of EaCl+Gly mixtures are quite impressive, with the highest value of 9.631 mol/kg at 298.2 K and 106.7 kPa, surpassing those of most absorbents/adsorbents previously reported. The absorption of NH3 in EaCl+Gly mixtures is also highly reversible, with almost negligible decrease in NH3 capacities during absorption–desorption cycles. The mechanism for interaction between EaCl+Gly and NH3 was validated by spectroscopic characterizations. Furthermore, the NH3 solubility data were fitted by the Krichevsky–Kasarnovsky equation to obtain the Henry’s constants of NH3 in EaCl+Gly mixtures, and estimate the enthalpy changes, Gibbs free energy changes and entropy changes, to evaluate the thermodynamic parameters of NH3 absorption process.

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Section: Resultsmentioning

confidence: 88%

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Jiang

Zhong

Liu

et al. 2019

ACS Sustainable Chem. Eng.

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“…The data present in Table represent that the values of apparent molar volumes for l -leucine and N -acetyl- l -leucine increase with the increase in the IL concentration and temperature. The increase in the values of apparent molar volume with temperature shows that solute–solvent interactions take place in the system as observed by other researchers, − i.e., a positive rise in the volume signifies solute–solvent interactions. The increase in temperature values of V ϕ causes a greater affinity for solvent and therefore intensifies the pronounced solute–solvent interactions occurring among the zwitterions of amino acids and ions of the IL.…”

Section: Results and Discussionmentioning

confidence: 99%

Temperature-Dependent Thermodynamic Properties of Amino Acids in Aqueous Imidazolium-Based Ionic Liquid

2020

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Molecular interactions of amino acids with ionic liquids are significant to study the molecular stability and physicochemical properties of amino acids. Mixtures of amino acids l-leucine and N-acetyl-l-leucine + (0.005, 0.010, 0.030, and 0.050 mol·kg–1) aqueous solution of ionic liquid (1-butyl-3-methylimidazolium chloride) at temperature T = (288.15, 298.15, 308.15, and 318.15 K) have been studied by density and speeds of sound measurements. Volumetric properties have been obtained by utilizing data of density. Volumetric properties include apparent molar volumes, partial molar volumes at infinite dilution, limiting partial molar volumes of transfer at infinite dilution, apparent molar expansibility, etc. Similarly, speeds of sound measurements are utilized to calculate corresponding parameters like apparent molar isentropic compression, K ϕ,s, apparent molar isentropic compression at infinite dilution, K ϕ,s 0, and transfer compressibility at infinite dilution ΔK ϕ,s 0. Results confirmed the predominance of the hydrophilic–hydrophilic interaction over the hydrophobic–hydrophobic interaction in ternary solutions.

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“…However, they can provide an explanation for the complex nature of various solute properties in solutions, in particular, the molecular interaction of amino acids in the aqueous medium of ionic liquids. Zhao et al 8 investigated the effect of glycine on three different ionic liquids belonging to alkyl methylimidazolium bromide, wherein alkyl contained two, four, and six carbon atoms. Their studies provided critical information for understanding the interactions between ILs and glycine as well as the implementation of certain industrial processes.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Preliminary Computational Assessment of Thermodynamic Properties of l-Serine and l-Threonine in (Water + 1-Butyl-3-methylimidazolium Bromide) Solutions at Various Temperatures

Kumar,

Sharma,

Shah

et al. 2023

J. Chem. Eng. Data

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The thermodynamic behavior of L-serine and Lthreonine in water and in an ionic liquid, 1-butyl-3-methylimidazolium bromide, containing water is examined using experimental data from acoustic, volumetric, and viscometric studies at T = (293.15 to 313.15) K and an experimental pressure of 101.3 kPa. The limiting apparent molar volume, V 0 ϕ , and limiting apparent molar isentropic compressibility, K 0 ϕ , s , are calculated from apparent molar parameters (volume, V ϕ , and isentropic compressibility, K ϕ , s ), respectively. The empirical parameters, S v and S k , are also computed. The experimental and computed data are utilized to evaluate the transfer properties (Δ tr V 0 ϕ and Δ tr K 0 ϕ , s ) of the chosen amino acids from water to the aqueous solutions of ionic liquid. The transfer property for these amino acids is positive at all concentrations of ionic liquids and all temperatures. This has been explained based on the cosphere overlap model. The viscosity B coefficients are evaluated from viscosity using the Jones−Dole equation. In ternary solutions (L-serine/L-threonine + water + ionic liquid), the thermodynamic properties are utilized to understand the mixing effects in aqueous solutions and to gather essential information about proximities and intermolecular interactions. The density functional theory is also used to validate the experimental results. The absorption spectra of amino acids in water as well as ionic liquids containing water are recorded to affirm the interactions prevailing in the system.

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Volumetric and viscosity properties of glycine in ionic liquid + water solutions at 298.15 K

Cited by 27 publications

References 33 publications

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Temperature-Dependent Thermodynamic Properties of Amino Acids in Aqueous Imidazolium-Based Ionic Liquid

Experimental and Preliminary Computational Assessment of Thermodynamic Properties of l-Serine and l-Threonine in (Water + 1-Butyl-3-methylimidazolium Bromide) Solutions at Various Temperatures

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Volumetric and viscosity properties of glycine in ionic liquid + water solutions at 298.15 K

Cited by 27 publications

References 33 publications

Effective and Reversible Capture of NH3 by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Effective and Reversible Capture of NH3 by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Temperature-Dependent Thermodynamic Properties of Amino Acids in Aqueous Imidazolium-Based Ionic Liquid

Experimental and Preliminary Computational Assessment of Thermodynamic Properties of l-Serine and l-Threonine in (Water + 1-Butyl-3-methylimidazolium Bromide) Solutions at Various Temperatures

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Volumetric and viscosity properties of glycine in ionic liquid + water solutions at 298.15 K

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents

Effective and Reversible Capture of NH₃ by Ethylamine Hydrochloride Plus Glycerol Deep Eutectic Solvents