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Studies in polarography IV reduction of manganate at the dropping mercury electrode

✍ Scribed by I. M. Issa; R. M. Issa; I. F. Hewaidy

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
437 KB
Volume
78
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

The polarography of manganate has been studied in sodium hydroxide solutions as supporting electrolyte, particularly as regards the effects of alkalinity, manganate concentration and the presence of formic acid. At alkalinities less than 1 M NaOH reduction passes to Mn^+2^ and then to Mn^0^ along two main waves. In 1 M NaOH reduction yields Mn^+3^ and then Mn^0^. Polarograms in 0.1, 0.5 and 1 M alkali can be used for the determination of manganate in 2.5 Γ— 10^βˆ’4^ to 2 Γ— 10^βˆ’3^ M solutions.

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