Abstract
Volume-fixed mutual diffusion coefficients of aqueous NaI have been measured from low concentrations to 10.8 mol-(kg H2O)−1 (7.6 mol-dm−3), and those of LiCl up to 1.6 mol-(kg H2O)−1 (1.55 mol-dm−3), at 25°C using free-diffusion Rayleigh interferometry. The accuracy of these diffusion coefficients is 0.1−0.2%. LiCl-H2O has some of the lowest diffusion coefficients for alkali halides, whereas NaI-H2O has some of the highest. The significance of these differences is briefly discussed.
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Work performed under the auspices of Office of Basic Energy Science (Geosciences) of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract number W-7405-ENG-48.
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Rard, J.A., Miller, D.G. Mutual diffusion coefficients of Nal-H2O and LiCl-H2O at 25°C from Rayleigh interferometry. J Solution Chem 12, 413–425 (1983). https://doi.org/10.1007/BF00646394
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DOI: https://doi.org/10.1007/BF00646394