Oxidation of Bromide by Tert‐Butyl Hypochlorite. Issue 10 (26th August 2013)

• Record Type: Journal Article
• Authors: Pastoriza, Cristina; Antelo, Juan Manuel; Crugeiras, Juan
• Is Part Of: International journal of chemical kinetics. Volume 45:Issue 10(2013:Oct.)
• Page Start: 629
• Page End: 637
• Publication Date: 2013-08-26
• Subjects: Chemical kinetics -- Periodicals; 541.394
• DOI: 10.1002/kin.20799
• Languages: English
• ISSNs: 0538-8066

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>The kinetics of the oxidation reaction of bromide by tert‐butyl hypochlorite (<italic>^t</italic>BuOCl) was studied at 25°C, ionic strength 0.5 M, and under isolation conditions. A stopped‐flow spectrophotometer was employed for monitoring the reactions. Kinetic studies show that the reaction is first order with respect to [Br⁻] and [<italic>^t</italic>BuOCl]. Linear dependences of the proton concentration, in perchloric acid medium, and the buffer solution concentration were found on the rate constant. The activation parameters were calculated using the Arrhenius and Eyring equations from the kinetic studies performed to analyze the influence of temperature on the rate constant. The results are consistent with a reaction mechanism of general acid catalysis. The catalytic constants were obtained for the oxidation of bromide by tert‐butyl hypochlorite. The slope obtained for the Brönsted relationship was 0.36.</p> </abstract>