Kinetic method for microdetermination of the insecticide phosalone

The alkaline hydrolysis of the insecticide S-([6-chloro-2-oxo-3(2H)-benzoxazolyl]methyl)- O, O-diethylphosphorodithioate (phosalone) results in O, O-diethylphosphorothioate and 6-chloro-3-mercaptomethylbenzoxazolone. Phosalone and its hydrolysis products act as activators in the copper(II) catalysis...

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Published in:Talanta (Oxford) 1981-07, Vol.28 (7), p.481-483
Main Authors: Petrov, G., Bachvarova, D.
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description The alkaline hydrolysis of the insecticide S-([6-chloro-2-oxo-3(2H)-benzoxazolyl]methyl)- O, O-diethylphosphorodithioate (phosalone) results in O, O-diethylphosphorothioate and 6-chloro-3-mercaptomethylbenzoxazolone. Phosalone and its hydrolysis products act as activators in the copper(II) catalysis oxidation of hydroquinone by hydrogen peroxide in feebly alkaline medium. The activating effect is due to formation of complexes with the reduced form of the catalyst. The kinetics of the catalysed oxidation reaction in the presence of these activators have been investigated spectrophotometrically and a kinetic method for determination of submicroamounts of the activators has been developed.
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title Kinetic method for microdetermination of the insecticide phosalone
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