Effect of Cationic Micellar Aggregates on the Kinetics of Dextrose Oxidation by N-Bromophthalimide |
| |
| Authors: | Yokraj Katre Minu Singh Sangeeta Patil Ajaya K Singh |
| |
| Institution: | 1. Department of Chemistry , Kalyan Mahavidyalaya , Bhilai Nagar, Durg, India yokrajkatre@gmail.com;3. Department of Chemistry , Kalyan Mahavidyalaya , Bhilai Nagar, Durg, India;4. Department of Chemistry , V.Y. T. P.G. College , Durg, India |
| |
| Abstract: | The effect of cationic micelles of Cetyltrimethyl ammonium bromide (CTAB) on the kinetics of oxidation of dextrose by N-Bromophthalimide were studied at 40°C. The reaction follows fractional-order and first order kinetics, with respect to dextrose] and NBP], respectively. CTAB strongly catalyze the reaction, and typical kobs and CTAB] profile was observed, that is, with a progressive increase in CTAB], the reaction rate increased, reaches a maximum value then decreased. Results are treated quantitatively in terms of Berezin's Model, which is applicable to bimolecular micellar catalyzed reaction. There is a negative effect of mercuric acetate and phthalimide. The influence of salts on the reaction rates has also been seen. The activation parameters as well as other parameters were calculated and suitable mechanism consistent with the experimental findings has been proposed. |
| |
| Keywords: | Bimolecular reactions cationic micelles cetyltrimethyl ammonium bromide critical micellar concentration dextrose kinetics micellar catalysis N-bromophthalimide oxidation |
|
|
