Diffusion studies. Part II. Tracer diffusion coefficients of copper(II) in HCl and HClO₄at 25 °C

1 January 1971

journal article
Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A

p. 101-103
https://doi.org/10.1039/j19710000101

Abstract

Tracer diffusion coefficients of copper(II) in HCl and HClO₄(0·25–10M) were measured by the radiometric porous-frit method. Complexes of Cu^II with chloride ions appear to account for the differences observed in the two acid systems. A comparison of the relative diffusion coefficient–viscosity products of Cu^II, Zn^II, and Sr^II in HCl shows that Cu^II is complexed to a lesser extent than Zn^II while Sr^II does not appear to be complexed. Our measured diffusion coefficient for copper in 1M-HCl agrees reasonably well with the values reported in several chronopotentiometric and polarographic papers in the literature. In perchloric acid solutions (0·25–8M), the relative diffusion coefficient–viscosity products for Cu^II and Zn^II are essentially the same.

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Diffusion studies. Part II. Tracer diffusion coefficients of copper(II) in HCl and HClO4at 25 °C

Abstract

Keywords

Diffusion studies. Part II. Tracer diffusion coefficients of copper(II) in HCl and HClO₄at 25 °C