ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract The rate of reduction of different doped and undoped manganese dioxide samples by hydrazine solution was followed by estimating the nitrogen liberated. The rate of this reaction may be used to estimate the depolarizing activity of the various manganese dioxides. Compared to the undoped sample, a higher rate of N2-evolution was observed in the case of samples doped with ions of valency higher than 4, whereas a lower rate was found for samples doped with ions of valency ⩽ 4. On the other hand, the oxidation of a Cr(III)-solution by the different doped and undoped samples exhibited the reverse trend to the oxidation of the hydrazine solution, suggesting that the mechanism of the two oxidation reactions are different.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00617206
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