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Effect of electrolytes on the self-diffusion coefficient of water
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1976The self-diffusion coefficient of water in aqueous solutions of various electrolytes at a concentration of 0.1 mol dm–3 has been measured at 25°C by using the diaphragm cell technique with deuterium as tracer. The data are correlated with the viscosity B-coefficients and the entropies of hydration.
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Effective diffusion coefficient of radon in concrete, theory and method for field measurements.
Health Physics, 1976A linear diffusion model serves as the basis for determination of an effective radon diffusion coefficient in concrete. The coefficient was needed to later allow quantitative prediction of radon accumulation within and behind concrete walls after ...
M. Culot, H. G. Olson, K. J. Schiager
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Effect of Catalyst Diffusion Coefficient on Ethylbenzene Dehydrogenation
Defect and Diffusion Forum, 2011The effective diffusion coefficients for a single catalyst pellet were determined by numerical integration of the Johnson-Stewart equation for bimodal and unimodal pore size distributions assuming a transitional diffusion regime. The effectiveness factors of a spherical catalyst pellet were determined at various pore size distribution probability ...
Feridoon Mohammadi +1 more
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Effective binary diffusion coefficients in mixed solvents
AIChE Journal, 1965AbstractThe diffusion of carbon dioxide through ethanol‐water, benzene toluene, and carbon tetrachloride benzene was studied over the entire range of compositions for the solvent pairs. The results were interpreted in terms of an effective binary diffusion coefficient.
David M. Himmelblau, Y. P. Tang
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Effective Diffusion Coefficients in Calcium Alginate Gel
Biotechnology Progress, 1987AbstractThe effective diffusion coefficient of glucose, De in calcium alginate gel determined at 35°C by two different methods gave values which, on average, were at least 24% less than in water. Assessment of the effect of glucose concentration on De seems to indicate that De increased with decreasing glucose concentration at very low concentrations ...
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Effective diffusion coefficient of chloride in porous concrete
Journal of Chemical Technology & Biotechnology, 1992AbstractA simplified diffusion model is given in the present paper to represent the chloride diffusion in porous concrete. The model with appropriate effective diffusion coefficient is shown to represent equally well as the more complex diffusion/reaction model proposed by Pereira and Hegedus.4 However the present model has the main advantages of being
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Investigation of wax deposition and effective diffusion coefficient in water-in-oil emulsion system
Journal of Thermal Analysis and Calorimetry, 2018Wei Wang +5 more
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The effect of concentration on diffusion coefficient in polymer solutions
AIChE Journal, 1965AbstractA microinterferometric method was used to measure the diffusion coefficient as a function of concentration in the system dimethylformamide‐polyacrylonitrile at 25°C. The diffusion coefficient increases with increasing polymer concentration up to the maximum employed, 17.72% by weight. The theoretical basis for this type of behavior is explained.
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Lithium‐Diffusion Induced Capacity Losses in Lithium‐Based Batteries
Advanced Materials, 2022David Rehnlund +2 more
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