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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.47A [2008] >
IJC-A Vol.47A(07) [July 2008] >
| Title: | Brij-35 micellar catalysed chloramine-T oxidation of vitamins: A kinetic study |
| Authors: | Shukla, Varuna
Upadhyay, Santosh K |
| Issue Date: | Jul-2008 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl. ⁸ C07B33/00 |
| Abstract: | The kinetics of oxidation of the vitamins (B₁ and B₆) by sodium salt of p-toluene sulfonamide (Chloramine-T) have been studied in presence of a non-ionic surfactant, i.e., polyoxyethylene(23)laurylether (Brij-35) in perchloric acid medium. Catalytic effect of Brij-35 micelle has been observed on the rate of oxidation. The reactions show first order, fractional order and zero-order dependence of rate with respect to chloramine-T, vitamins and HClO₄, respectively. The mechanism in absence as well as in presence of surfactant has been proposed. The spectrophotometric evidence supports the binding/association between chloramine-T and Brij-35 micelle. The kinetic data have also been rationalised in terms of Menger and Portnoy’s kinetic model and binding parameters have been evaluated. |
| Page(s): | 1032-1036 |
| ISSN: | 0376-4710 |
| Source: | IJC-A Vol.47A(07) [July 2008]
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