Ternary Mutual Diffusion Coefficients of Aqueous NiCl<sub>2</sub> + NaCl and NiCl<sub>2</sub> + HCl Solutions at 298.15 K

Ribeiro, Ana C.F.; Gomes, Joselaine C.S.; Santos, Cecília I.A.V.; Lobo, Victor M.M.; Esteso, Miguel A.; Leaist, Derek G.

doi:10.1021/je2006693

Cited by 13 publications

(6 citation statements)

References 19 publications

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“…At the limiting situations of X 1 = 0 and X 1 = 1, D 11 values correspond, respectively, to the tracer diffusion coefficient of NiCl 2 in CDs and the binary mutual diffusion coefficient of aqueous NiCl 2 at 0.001 mol dm −3 . Regarding the last D 11 values of NiCl 2 for all solutions at X 1 = 1, reasonable agreement is observed between them and the binary diffusion coefficients previously reported in previous studies (that is, D = 1.048 × 10 −9 m 2 s −1 ) [32,33].…”

Section: Aqueous System Phsupporting

confidence: 90%

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Fangaia,

Silva,

Messias

et al. 2024

IJMS

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In this work, we propose a comprehensive experimental study of the diffusion of nickel ions in combination with different cyclodextrins as carrier molecules for enhanced solubility and facilitated transport. For this, ternary mutual diffusion coefficients measured by Taylor dispersion method are reported for aqueous solutions containing nickel salts and different cyclodextrins (that is, α-CD, β-CD, and γ-CD) at 298.15 K. A combination of Taylor dispersion and other methods, such as UV-vis spectroscopy, will be used to obtain complementary information on these systems. The determination of the physicochemical properties of these salts with CDs in aqueous solution provides information that allows us to understand solute–solvent interactions, and gives a significant contribution to understanding the mechanisms underlying diffusional transport in aqueous solutions, and, consequently, to mitigating the potential toxicity associated with these metal ions. For example, using mutual diffusion data, it is possible to estimate the number of moles of each ion transported per mole of the cyclodextrin driven by its own concentration gradient.

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Section: Aqueous System Phsupporting

confidence: 90%

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Fangaia,

Silva,

Messias

et al. 2024

IJMS

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“…However, to our knowledge, there are only a few publications devoted to the study of diffusion in aqueous electrolyte solutions. We have been particularly interested in data about this property for chemical systems involving nickel ions in different aqueous media [3][4][5]. This work has been motivated by the fact that the nickel ion is one of the most mobile and bioavailable heavy metal ions present in different sources (e.g., drinking water, food, active pharmaceutical ingredients and excipients, and dental casting alloys), and by the possibility that the diffusion of nickel salts could produce substantial coupled flows of other dissolved salts.…”

Section: Introductionmentioning

confidence: 99%

Mutual diffusion coefficients in systems containing the nickel ion

Ribeiro

Veríssimo

Gomes

et al. 2013

Comptes Rendus. Mécanique

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Mutual diffusion coefficients of nickel chloride in water have been measured at 293.15 K and 303.15 K and at concentrations between 0.020 mol dm −3 and 0.100 mol dm −3 , using a conductimetric cell. The experimental mutual diffusion coefficients are discussed on the basis of the Onsager-Fuoss model. The equivalent conductances at infinitesimal concentration of the nickel ion in these solutions at those temperatures have been estimated using these results. In addition, from these data, we have estimated some transport and structural parameters, such as limiting diffusion coefficient, ionic conductance at infinitesimal concentration, hydrodynamic radii and activation energy, contributing this way to a better understanding of the structure of these systems and of their thermodynamic behavior in aqueous solution at different concentrations.

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“…where µ {P} is the chemical potential of {P}. Note that it is assumed that no explicit dependence of v P on µ S is considered in Equation (42). Based on {P} composition, we express µ {P} in the following way:…”

Section: S and N (I)mentioning

confidence: 99%

“…In other words, µ {P} will depend on µ W and µ S because solvent and cosolute molecules are present in the inner local domain. Since µ W and µ S are linked by the Gibbs-Duhem equation, C S µ S + C W µ W = 0, we can rewrite Equation (42) in the following way:…”

Section: S and N (I)mentioning

confidence: 99%

“…An expert in the field of transport phenomena may realize that diffusiophoresis should be associated with the phenomenon of cross-diffusion encountered in multicomponent mixtures [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Cross-diffusion is described by employing the framework of non-equilibrium thermodynamics [ 47 , 48 ], which was derived primarily from the statistical mechanical investigations of Onsager in 1931 [ 49 , 50 ].…”

Section: Introductionmentioning

confidence: 99%

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Diffusiophoresis of Macromolecules within the Framework of Multicomponent Diffusion

Annunziata

2024

Molecules

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Diffusiophoresis is the isothermal migration of a colloidal particle through a liquid caused by a cosolute concentration gradient. Although diffusiophoresis was originally introduced using hydrodynamics, it can also be described by employing the framework of multicomponent diffusion. This not only enables the extraction of diffusiophoresis coefficients from measured multicomponent-diffusion coefficients but also their theoretical interpretation using fundamental thermodynamic and transport parameters. This review discusses the connection of diffusiophoresis with the 2 × 2 diffusion-coefficient matrix of ternary liquid mixtures. Specifically, diffusiophoresis is linked to the cross-term diffusion coefficient characterizing diffusion of colloidal particles due to cosolute concentration gradient. The other cross-term, which describes cosolute diffusion due to the concentration gradient of colloidal particles, is denoted as osmotic diffusion. Representative experimental results on diffusiophoresis and osmotic diffusion for polyethylene glycol and lysozyme in the presence of aqueous salts and osmolytes are described. These data were extracted from ternary diffusion coefficients measured using precision Rayleigh interferometry at 25 °C. The preferential-hydration and electrophoretic mechanisms responsible for diffusiophoresis are examined. The connection of diffusiophoresis and osmotic diffusion to preferential-interaction coefficients, Onsager reciprocal relations, Donnan equilibrium and Nernst–Planck equations are also discussed.

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Ternary Mutual Diffusion Coefficients of Aqueous NiCl₂ + NaCl and NiCl₂ + HCl Solutions at 298.15 K

Cited by 13 publications

References 19 publications

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Mutual diffusion coefficients in systems containing the nickel ion

Diffusiophoresis of Macromolecules within the Framework of Multicomponent Diffusion

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Ternary Mutual Diffusion Coefficients of Aqueous NiCl2 + NaCl and NiCl2 + HCl Solutions at 298.15 K

Cited by 13 publications

References 19 publications

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Transport Properties in Multicomponent Systems Containing Cyclodextrins and Nickel Ions

Mutual diffusion coefficients in systems containing the nickel ion

Diffusiophoresis of Macromolecules within the Framework of Multicomponent Diffusion

Contact Info

Product

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Ternary Mutual Diffusion Coefficients of Aqueous NiCl₂ + NaCl and NiCl₂ + HCl Solutions at 298.15 K