Summary
The induced reaction occurring in the H2O2-H2S2O8- KMnO4 [and Ce(SO4)2, resp.,] system was studied in detail and established that it strongly depends on the experimental conditions such as rate of stirring, speed of titration, dilution of the solution, temperature, concentrations of partners of the reaction, acid concentration etc. It was found further that the induced disappearence of peroxydisulphate as well as of hydrogen peroxide is caused by HO2 radicals formed during the primary reaction between hydrogen peroxide and 1-equivalent oxidants. The effect of foreign ions on the induced reaction was also interpreted.
Zusammenfassung
Die induzierte Reaktion im System H2O2-H2S2O8-KMnO4 bzw. Ce(SO4)2 wurde eingehend untersucht und gefunden, daß sie weitgehend von den Versuchsbedingungen abhängig ist (Rühr- und Titrier-geschwindigkeit, Verdünnungsgrad, Temperatur, Konzentration der Reaktionspartner, Säurekonzentration u. a.). Das Verschwinden von Peroxydisulfat und Wasserstoffperoxid bei der induzierten Reaktion wird durch HO2-Radikale verursacht, die während der induzierenden Reaktion zwischen Wasserstoffperoxid und 1-äquivalenten Oxydations mitteln gebildet werden. Die Wirkung von Fremdionen auf die induzierte Reaktion wird ebenfalls erläutert.
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Csányi, L.J., Bátyai, J. & Solymosi, F. Induced reaction within the peroxy-compounds. Z. Anal. Chem. 195, 9–21 (1963). https://doi.org/10.1007/BF00483613
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DOI: https://doi.org/10.1007/BF00483613