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Studies in polarography. IV. Reduction of manganate at the dropping mercury electrode.

Book ID
107792330
Publisher
Elsevier
Year
1960
Weight
62 KB
Volume
1
Category
Article
ISSN
0368-1874

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Studies in polarography IV reduction of
Studies in polarography IV reduction of manganate at the dropping mercury electrode
โœ I. M. Issa; R. M. Issa; I. F. Hewaidy ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 437 KB

## 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

Reduction of erythrosin at the dropping
Reduction of erythrosin at the dropping mercury electrode
โœ P.W. Board; D. Britz; R.V. Holland ๐Ÿ“‚ Article ๐Ÿ“… 1968 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 298 KB

The polarographic reduction of erythrosin, the disodium salt of 2',4',5',7'-tetraiodofluorescein, was examined at pH 4.7. Three reduction steps were found. The first step involves two electrons and the reduction of the quinone group as in fluorescein. The second step results from the removal of the