Photoreduction of the chloropropionic acid of carfentrazone-ethyl in sodium sulfide crane flat meadow solutions
Under flooded rice-field conditions, the herbicide, carfentrazone-ethyl, hydrolyzes rapidly to carfentrazone-chloropropionic acid. Results are presented from a laboratory study that examined whether the conversion was due to photoreduction. Results indicated that carfentrazone-chloropropionic acid d...
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| Veröffentlicht in: | Environmental toxicology and chemistry 2002-10, Vol.21 (10), p.2007-2013 |
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| container_start_page | 2007 |
| container_title | Environmental toxicology and chemistry |
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| creator | NGIM, Kenley K CROSBY, Donald G |
| description | Under flooded rice-field conditions, the herbicide, carfentrazone-ethyl, hydrolyzes rapidly to carfentrazone-chloropropionic acid. Results are presented from a laboratory study that examined whether the conversion was due to photoreduction. Results indicated that carfentrazone-chloropropionic acid dissipated with pseudo-first-order kinetics in irradiated sodium sulfide solutions. In the direct photolysis experiment, 2-chloropropionic acid was comparably stable to the dark control, and the difference from carfentrazone-chloropropionic acid was attributed to the absence of the aryltriazolinone chromophore. Benzoquinone also increased photoreduction when present in the Na sub(2)S solution. |
| doi_str_mv | 10.1897/1551-5028(2002)021<2007:POTCAO>2.0.CO;2 |
| format | Article |
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Results are presented from a laboratory study that examined whether the conversion was due to photoreduction. Results indicated that carfentrazone-chloropropionic acid dissipated with pseudo-first-order kinetics in irradiated sodium sulfide solutions. In the direct photolysis experiment, 2-chloropropionic acid was comparably stable to the dark control, and the difference from carfentrazone-chloropropionic acid was attributed to the absence of the aryltriazolinone chromophore. 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| identifier | ISSN: 0730-7268 |
| ispartof | Environmental toxicology and chemistry, 2002-10, Vol.21 (10), p.2007-2013 |
| issn | 0730-7268 1552-8618 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_14632645 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Continental surface waters Exact sciences and technology Global environmental pollution Natural water pollution Pollution Water treatment and pollution |
| title | Photoreduction of the chloropropionic acid of carfentrazone-ethyl in sodium sulfide crane flat meadow solutions |
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