Motion of hydrated ions in solutions

Zaitseva, A. M.; Fisher, I. Z.

doi:10.1007/bf02237511

Cited by 2 publications

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“…First, let us consider the kinematic shear viscosity of a NaCl aqueous solution with the molar fraction of salt 𝑥 = 0.07. At this concentration, there are approximately 13 water molecules per anion-cation pair, which coincides with the number of water molecules in the hydration spheres of ions [12]. Since ions are spherically symmetric, they practically do not affect the character of orientational correlations.…”

Section: Kinematic Shear Viscosity Of Nacl Aqueous Solutionmentioning

confidence: 65%

“…For diluted aqueous solutions of electrolytes, the shear viscosity is higher in comparison with that for pure water. In works [12][13][14], a hydrodynamic theory was developed for the motion of ions surrounded by hydration shells. The principal idea consists in that the ion locally changes the density of water in its vicinity and, in such a manner, changes the specific volume per water molecule.…”

Section: Introductionmentioning

confidence: 99%

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Kinematic Shear Viscosity of Water, Aqueous Solutions of Electrolytes, and Ethanol

Makhlaichuk

2015

Ukr. J. Phys.

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The nature of the kinematic shear viscosity in associated (water and aqueous solutions of electrolytes) and strongly associated (alcohols) liquids has been studied. The behavior of the kinematic shear viscosity is shown to be governed by orientational correlations and the translational motion of molecules, which is characteristic of argon. The former mechanism dominates in the supercooled area and in normal states close to the triple point. The latter one is responsible for the viscosity at higher temperatures. The characteristic temperature 𝑡𝐻 separating those areas is found to be close to the triple point in the case of water and electrolyte aqueous solutions, and to the critical point in the case of ethanol. The agreement with experimental data is quite satisfactory. K e y w o r d s: viscosity, water, ethanol.

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Section: Kinematic Shear Viscosity Of Nacl Aqueous Solutionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%