title: Photolysis of fluchloralin in aqueous methanol.
abstract: The photodegradation of fluchloralin by UV irradiation or sunlight in aqueous methanolic solution has been examined. In the presence of titanium dioxide five photoproducts were obtained, but only four in its absence. One photoproduct, 2, 2'-azoxy-bis(alpha,alpha,alpha-trifluoro-6-nitro-p-toluidine) is reported for the first time as a metabolite of fluchloralin. In natural sunlight the rate of degradation was higher than in UV light and titanium dioxide had almost no effect on the rate of degradation.
authors.affiliation: Pesticide Residue Laboratory, Department of Agricultural Chemicals, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741252, West Bengal, India.
authors.forename: Tapas
authors.initials: T
authors.lastname: Saha
authors.forename: Anjan
authors.initials: A
authors.lastname: Bhattacharyya
mesh_terms: D000814:Aniline Compounds / Q000378:metabolism* / Q000528:radiation effects; D001673:Biodegradation, Environmental; D003497:Cyclic N-Oxides / Q000378:metabolism / Q000528:radiation effects; D008401:Gas Chromatography-Mass Spectrometry; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol / Q000737:chemistry / Q000494:pharmacology*; D010782:Photolysis / Q000187:drug effects / Q000528:radiation effects; D013055:Spectrophotometry, Infrared; D013472:Sunlight; D014025:Titanium / Q000494:pharmacology; D014052:Toluidines / Q000378:metabolism / Q000528:radiation effects; D014466:Ultraviolet Rays; D014867:Water
chemical_list: C465367:2,2'-azoxybis(alpha,alpha,alpha-trifluoro-6-nitro-4-toluidine); D000814:Aniline Compounds; D003497:Cyclic N-Oxides; D014052:Toluidines; D014867:Water; C009495:titanium dioxide; C012322:fluchloralin; D014025:Titanium; D000432:Methanol