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Stopped-flow investigation of the reaction of hexabromoiridate(III) with bromine in aqueous solution

✍ Scribed by Craig M. Hoag; Robert J. Hanrahan

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 65 KB
Volume: 36
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.20034

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✦ Synopsis

Abstract

The reaction of hexabromoiridate(III) with bromine to form hexabromoiridate(IV) and bromide ion was studied using a Durrum stopped‐flow spectrophotometer. Special precautions were taken while studying this reaction. All of the experiments were carried out within 3 min after preparation of the hexabromoiridate solution throughout this investigation in order to limit the amount of conversion of hexabromoiridate(III) to aquapentabromoiridate(III) before reaction with bromine. Very dilute solutions were used because of the rapidity of the reaction. The rate constant for the reaction at 24 ± 1°C was determined to be (3.2 ± 0.4) × 10^3^ L mol^−1^ s^−1^. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36: 623–626, 2004

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