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Kinetics of tween-80 micellar catalysed chloramine-T oxidation of vitamins in HClO₄ medium

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Title Kinetics of tween-80 micellar catalysed chloramine-T oxidation of vitamins in HClO₄ medium
 
Creator Shukla, Varuna
Upadhyay, Santosh K
 
Subject Kinetics of tween-80
Micellar catalyzed
Oxidation of vitamins
Chloramine-T
 
Description 46-51
A catalytic effect of non-ionic (tween-80) micelles on the rate of oxidation of thiaminehydrochloride (vitamin B₁) and pyridoxine hydrochloride (vitamin B₆) by sodium salt of p-toluene sulphonamide (chloramine-T) in acidic medium has been observed and rate has been found to be proportional to {k' + k" [Tween-80]}, where k' and k" are the rate constants in absence and in presence of surfactant, respectively. The rate showed a first order, a fractional order and a zero order dependence on [Chloramine-T]₀, [Vitamin]₀ and [H⁺]₀, respectively. The association/binding between the oxidant and the surfactant micelle is supported by the spectrophotometric evidence. A mechanism has been proposed and binding parameters have been evaluated.
 
Date 2009-02-19T11:10:44Z
2009-02-19T11:10:44Z
2009-01
 
Type Article
 
Identifier 0971–457X
http://hdl.handle.net/123456789/3221
 
Language en_US
 
Publisher CSIR
 
Source IJCT Vol.16(1) [January 2009]