Ionic Self-Diffusion in Concentrated Aqueous Electrolyte Solutions

Ionic self-diffusion in concentrated aqueous electrolyte solutions.

A self-consistent microscopic theory is developed to understand the anomalously weak concentration dependence of ionic self-diffusion coefficient D(ion) in electrolyte solutions. The self-consistent equations are solved by using the mean spherical approximation expressions of the static pair correlation functions for unequal sizes. The results are in excellent agreement both with the known expe...

Multicomponent Concentrated Aqueous Electrolyte Solutions

Molecular Dynamics simulations of concentrated aqueous electrolyte solutions

Transport properties of concentrated electrolytes have been analyzed using classical molecular dynamics simulations with the algorithms and parameters typical of simulations describing complex electrokinetic phenomena. The electrical conductivity and transport numbers of electrolytes containing monovalent (KCl), divalent (MgCl2), a mixture of both (KCl + MgCl2), and trivalent (LaCl3) cations ha...

c, T-Dependence of the Self Diffusion in Concentrated Aqueous Sucrose Solutions

C. Buttersack and K. Buchholz Institut für landwirtschaftliche Technologie und Zuckerindustrie an der TU Braunschweig, TU Braunschweig, Langer Kamp 5, D-38106 Braunschweig, Bundesrepublik Deutschland Z. Naturforsch. 49c, 258-264 (1994); received December 2,1993 Diffusion, Sucrose, Water, Aqueous Solution The self diffusion coefficients D of the water molecules and of sucrose have been deter­ mi...

Crowding-Controlled Cluster Size in Concentrated Aqueous Protein Solutions: Structure, Self- and Collective Diffusion.

We investigate the concentration-controlled formation of clusters in β-lactoglobulin (BLG) protein solutions combining structural and dynamical scattering techniques. The static structure factor from small-angle X-ray scattering as well as de-Gennes narrowing in the nanosecond diffusion function D(q) from neutron spin echo spectroscopy support a picture of cluster formation. Using neutron backs...