Photodegradation of the organophosphorus insecticide ‘Phorate’ |
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Authors: | BK Sharma Navindu Gupta |
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Institution: | Department of Chemistry , University of Delhi , Delhi, 110007, India |
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Abstract: | The photolysis of Phorate(I) (0,0‐diethyl S‐ethyl thiomethyl phosphordithioate) has been studied as a thin film on a glass surface and in a solution of methanol‐water (60:40) by ultraviolet light (λ > 290 nm). The rate of disappearance of Phorate in the solution show first order Kinetics with a rate constant of 4.9 × 10–5 S –1. The half‐life of (I) exposed on a glass surface is found to be 5 hours. The structure of the major photoproducts were characterised by 1H NMR and mass spectroscopy. |
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Keywords: | Phorate photodegradation organophosphate insecticide |
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