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Soil Science Society of America Journal Abstract -

Gaseous Products Produced by Anaerobic Reaction of Sodium Nitrite with Oxime Compounds and Oximes Synthesized from Organic Matter1


This article in SSSAJ

  1. Vol. 33 No. 5, p. 696-702
    Received: Mar 19, 1969
    Accepted: May 1, 1969

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  1. Lynn K. Porter2



Hydroxylamine was reacted with a number of soil organic matter sources to produce organic matter oximes. This reaction has been used to measure the carbonyl groups in organic matter. The soil organic matter, organic matter oximes, oxime compounds, and aromatic compounds were reacted with buffered (pH 5.0 and pH 6.0) NaNO2 solutions in evacuated Rittenberg tubes. The gaseous products resulting from these nitrate reactions were analyzed by gas chromatography and compared to determine the nature of soil organic matter oximes and to determine if such oximes could be a source of N2O production in soils. All oxime compounds studied, except dimethylglyoxime and the quinone oximes, which produced NO, formed N2O as their major gaseous products. The major gaseous product from organic matter oximes, organic matter, and aromatic compounds was NO. The results suggest that if the reaction product of NH2OH and organic matter is an oxime, the oxime resembles or reacts like quinone oximes or dimethyl-glyoximes. The negligible amounts of N2O produced from the reaction of NaNO2 with organic matter oximes suggests that this is probably not a pathway for N2O loss from soils.

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