Oxidative Destruction of Anthraquinone and Indigoid Compounds in Aqueous Solutions of Sodium Hydroxymethylsulfinate |
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| Authors: | Chistyakova G V Koksharov S A Murav'ev O N |
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| Institution: | (1) Institute of Solution Chemistry, Ivanovo, Russia, Ivanovo University of Chemistry and Technology, Ivanovo, Russia |
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| Abstract: | Kinetics of quinone-hydroquinone equilibria of tetrabromoindigo, benzopyrene quinone, and dimethoxybenzanthrone in the presence of a reducer and atmospheric oxygen were studied by spectrophotometry. The reason for the destruction of the dyes both in acidic and alkaline media is the molecular oxygen primarily present in the system. The destruction mechanism is considered on an example of disodium 5,5-indigosulfonate. |
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