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Inorganic Nitrogen Transformations Through the Oxidation and Reduction of Iron
Author(s) -
Chao TyngTsair,
Kroontje Wybe
Publication year - 1966
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1966.03615995003000020016x
Subject(s) - hydroxylamine , ferrous , hydrazine (antidepressant) , chemistry , nitrous oxide , inorganic chemistry , ferric , nitrous acid , nitrite , ammonia , denitrification , nitrate , nitrogen , nitric oxide , nitric acid , nuclear chemistry , organic chemistry , chromatography
In acid solution nitrate can be reduced by ferrous iron to N 2 through such intermediates as nitrogen tetraoxide, nitrous acid, hyponitrous acid and nitrous oxide or through nitrogen tetraoxide, nitrous acid, nitric oxide, and nitrous oxide. These sequences show similarities to those occurring in the denitrification process. In a basic solution the reduction of nitrite to N 2 may go through nitric oxide, N 2 O 2 2‐ , and nitrous oxide, or it may be reduced to ammonia through hydroxylamine, and hydrazine. Hydrazine and hydroxylamine are very unstable in the presence of iron in solution. In acid solution both hydrazine and hydroxylamine are oxidized by ferric iron to N 2 and N 2 O. The amount of N 2 O formed is proportional to the ferric iron concentration.