Abstract
The application of chronopotentiometry as an electroanalytical
technique for the in situ
determination of silver(1) in molten KNO3-Ba(NO3)2
(87.6 : 12.4 mole%) eutectic has been described. Reduction of silver(1) on
platinum microelectrode is found to be a reversible, single-step one-electron
process. Diffusion coefficients, D (cm2 s-l), of
silver(1) in the melt have been determined and its temperature variation in the
range 578-697 K could be expressed by the relation (R = 8.314 J K-1
mol-1):
D = 0.913 x 10-3 exp(-19810/RT)
Effect of the presence of
the divalent Ba2+ cations in the fluid on the diffusion process has
been discussed.
Cited by
3 articles.
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