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The oxidation of 3,3′-dimethoxy benzidine with potassium bromate in acidic solutions

✍ Scribed by S. B. Jonnalagadda; N. M. Munkombwe; P. Hensman; T. Mushinga

Book ID
102926717
Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
593 KB
Volume
23
Category
Article
ISSN
0538-8066

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✦ Synopsis

The kinetics and mechanism of the oxidation of 3,3'-dimethoxybenzidine (oda, o-dianisidine) by potassium bromate in aqueous acidic medium were studied by monitoring the formation rate of the reaction product, 3,3'-dimethoxy 4,4'-diphenoquinone at 447 nm. The reaction is, first order with respect to both the substrate and oxidant, and second order with respect to H'. The 0da:bromate stoichiometric ratio is 1:l. Plausible mechanism and rate laws are proposed accounting the experimental findings. Computer simulations were done using the proposed mechanism.

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