Soil-catalyzed oxidation of aniline |
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Authors: | Parthasarathy Pillai Charles S Helling James Dragun |
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Institution: | 1. Pesticide Degradation Laboratory Agricultural Research Service, U.S. Department of Agriculture Beltsville, Maryland 20705 USA;2. Office of Toxic Substances, U.S. Environmental Protection Agency 401 M St., S.W., Washington, D.C. 20460 USA |
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Abstract: | Aniline partially degraded in sterile soil to azobenzene, azoxybenzene, phenazine, form=anilide, and acetanilide. Nitrobenzene, -benzoquinone, and unidentified species were possible products; substantial bound residues may also have formed. Soil-catalyzed conversion of aniline or 5]aniline seems evidenced by 6-24X more product recovery in sterile soil than in sterile water alone, a process inhibited by Na2S2O4. Freundlich adsorption constants showed: azobenzene > azoxybenzene > phenazine > aniline. |
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