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The reduction of nitrate at a copper cathode in aqueous acid

✍ Scribed by Derek Pletcher; Zahra Poorabedi

Publisher: Elsevier Science
Year: 1979
Tongue: English
Weight: 366 KB
Volume: 24
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(79)87081-4

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✦ Synopsis

Itiscontirmed

that nitratcreduces to ammonia in high yield atacoppercathode inaqueousacidic perchlorate and sulphate media. At pH below 2, well formed reduction waves are observed; the process is irreversible but in the plateau region it is mass transfer controlled. AbovepH 3, no reduction occurs. It is also shown that chloride, bromide and iodideions inhibit the reduction causing the halfwave potential for nitrate to be shifted to more negative potentials.

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