%0 Journal Article %1 Wang2004a %A Wang, Peiming %A Anderko, Andrzej %A Young, Robert D. %D 2004 %J Fluid Phase Equilibria %K 2004 electrolyte multi-component viscosity %P 71 - 82 %R 10.1016/j.fluid.2004.09.008 %T Modeling viscosity of concentrated and mixed-solvent electrolyte systems %U http://dx.doi.org/10.1016/j.fluid.2004.09.008 %V 226 %X A comprehensive model has been developed for calculating the viscosity of aqueous or mixed-solvent electrolyte systems ranging from dilute solutions to fused salts. The model incorporates a mixing rule for calculating the viscosity of solvent mixtures and a method for predicting the effect of finite electrolyte concentrations. The mixing rule represents the viscosity of multi-component solvent mixtures using molar volumes and viscosities of pure components together with binary parameters. With this mixing rule, the viscosity of ternary systems can be accurately predicted using parameters determined from only binary data. The effect of electrolyte concentration on viscosity is modeled by combining a long-range electrostatic term obtained from the Onsager-Fuoss theory, a contribution of individual ions, which is quantified by the Jones-Dole B coefficients, and a contribution of specific interactions between ions or neutral species. Formulations have been developed for the contributions of individual ions and species-species interactions to account for the effect of multiple solvents. In addition to solvent composition, the species-species interaction term is also a function of ionic strength. The model accurately reproduces the viscosity of systems such as salts in water, organic or mixed water-organic solvents and aqueous acids or bases up to the pure solute limit. The model has been coupled with thermodynamic equilibrium calculations to reproduce the effects of complexation or other ionic reactions on viscosity.

@article{Wang2004a, abstract = {A comprehensive model has been developed for calculating the viscosity of aqueous or mixed-solvent electrolyte systems ranging from dilute solutions to fused salts. The model incorporates a mixing rule for calculating the viscosity of solvent mixtures and a method for predicting the effect of finite electrolyte concentrations. The mixing rule represents the viscosity of multi-component solvent mixtures using molar volumes and viscosities of pure components together with binary parameters. With this mixing rule, the viscosity of ternary systems can be accurately predicted using parameters determined from only binary data. The effect of electrolyte concentration on viscosity is modeled by combining a long-range electrostatic term obtained from the Onsager-Fuoss theory, a contribution of individual ions, which is quantified by the Jones-Dole B coefficients, and a contribution of specific interactions between ions or neutral species. Formulations have been developed for the contributions of individual ions and species-species interactions to account for the effect of multiple solvents. In addition to solvent composition, the species-species interaction term is also a function of ionic strength. The model accurately reproduces the viscosity of systems such as salts in water, organic or mixed water-organic solvents and aqueous acids or bases up to the pure solute limit. The model has been coupled with thermodynamic equilibrium calculations to reproduce the effects of complexation or other ionic reactions on viscosity.}, added-at = {2011-01-19T18:07:53.000+0100}, author = {Wang, Peiming and Anderko, Andrzej and Young, Robert D.}, biburl = {https://www.bibsonomy.org/bibtex/2de99f59caa8e1fb182c3d5e0888551d5/thorade}, description = {ScienceDirect - Fluid Phase Equilibria : Modeling viscosity of concentrated and mixed-solvent electrolyte systems}, doi = {10.1016/j.fluid.2004.09.008}, interhash = {0dba0487a618b5ef8bfc20e4cbd1eb40}, intrahash = {de99f59caa8e1fb182c3d5e0888551d5}, issn = {0378-3812}, journal = {Fluid Phase Equilibria}, keywords = {2004 electrolyte multi-component viscosity}, pages = {71 - 82}, timestamp = {2012-11-02T18:21:44.000+0100}, title = {Modeling viscosity of concentrated and mixed-solvent electrolyte systems}, url = {http://dx.doi.org/10.1016/j.fluid.2004.09.008}, volume = 226, year = 2004 }