Fig. 3: Diffusion analysis of 1.47 m KOH and 1.75 m K2CrO4 solutions using 53Cr NMR. | Communications Chemistry

Fig. 3: Diffusion analysis of 1.47 m KOH and 1.75 m K2CrO4 solutions using 53Cr NMR.

From: Determining hexavalent chromium transport properties in alkaline nuclear waste using nuclear magnetic resonance spectroscopy

Fig. 3

A 53Cr PFGSTE NMR spectra of 1.47 m KOH and 1.75 m K2CrO4 at 20 °C. B Stejskal Tanner plot in which the logarithm of the normalized signal intensity is related to b, for instrument parameters contributing to beta, see the methodology section. C Temperature dependence of the \({D}_{T}\) estimated with BPP, Stokes-Einstein-Debye and Stokes-Einstein Equations with comparison the direct measurement of \({D}_{T}\) at 20 °C with PFGSTE NMR. A table of \({D}_{T}\) is provided in Table S7 of the Supplementary Information. The error bars (+/- σ) in this figure were determined via analysis of Monte Carlo simulations as later described. Note, the units of concentration are in molality.

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