JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Micelles in Physical Chemistry Laboratory. Surfactant Catalyzed Oxidation of Glycine by Acidic Permanganate
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Micelles in Physical Chemistry Laboratory. Surfactant Catalyzed Oxidation of Glycine by Acidic Permanganate
Pare, Brijesh; Kaur, Parwinder; Bhagwat, V.W.; Fogliani, Charles;
  PDF(new window)
 Abstract
Micellar catalysis is an essential part of theoretical and experimental curricular. The sodium dodecylsulfate (SDS) catalyzed reaction between glycine and potassium permanganate in acidic medium is an ideal kinetic experiment for the secondary and undergraduate physical chemistry laboratory, to show the effect of micellar catalysis on rate of the reaction. The reaction is conducted both with and without SDS to observe the rate enhancement in the presence of surfactant. To show surfactant catalysis a plot between k and [SDS] is plotted. As surfactant catalysis is observed even before the critical micelle concentration of SDS, this pre-micellar catalysis can be understood in the light of positive co-operativity. The value of positive cooperative index (n) has been found to be 2.37. Further, dependence of the reaction rate on substrate and oxidant concentrations is also discussed. The reaction follows pseudo-first-order kinetics. The overall reaction is second order, with first-order dependence on both glycine and permanganate concentrations. The theory of surfactant catalysis is also discussed. With the conditions specified in the experiment, total reaction times are in 3~4 hours lab session, thus allowing several data sets to be acquired in a single laboratory period. Preparation of solutions and procedure is also given in detail.
 Keywords
Laboratory;Surfactant;Micellar;Glycine;Permanganate;
 Language
English
 Cited by
1.
A Kinetic and Mechanistic Study on the Oxidation of Hydroxy Acids by N-Bromophthalimide in the Presence of a Micellar System, Journal of Surfactants and Detergents, 2007, 10, 3, 175  crossref(new windwow)
2.
Catalytic Effect of Cetyltrimethylammonium Bromide on the Oxidation of Oxalic Acid by N-Bromophthalimide in Acidic Medium, Journal of Dispersion Science and Technology, 2012, 33, 7, 1038  crossref(new windwow)
3.
Micellar effect on the kinetics of oxidation of malic acid by N-bromophthalimide, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2007, 308, 1-3, 6  crossref(new windwow)
4.
Effect of Cationic Micellar Aggregates on the Kinetics of Dextrose Oxidation by N-Bromophthalimide, Journal of Dispersion Science and Technology, 2008, 29, 10, 1412  crossref(new windwow)
5.
Dielectric relaxation studies of nitriles solubilized by Sodium dodecyl sulphate in aqueous solutions, Journal of Molecular Liquids, 2012, 172, 76  crossref(new windwow)
6.
Micelle Catalyzed Oxidation of 4-Methyl-2-Pentanone by NBP in the Presence of Acetic Acid, Journal of Dispersion Science and Technology, 2012, 33, 3, 447  crossref(new windwow)
7.
Micellar Catalytic Reduction of Glycine by 2,7-Dibromo-4-(Hydroxymercuri)-Fluoresceine Disodium Salt: Kinetic and Thermodynamic Aspects, Journal of Dispersion Science and Technology, 2013, 34, 7, 957  crossref(new windwow)
8.
Applicability of Positive Cooperativity Model of Enzyme Catalysis on Surfactant-Mediated Reaction of Pararosaniline Hydrochloride Carbocation with Hydroxide Ion, Journal of Dispersion Science and Technology, 2016, 37, 2, 239  crossref(new windwow)
9.
Cetyltrimethylammonium Bromide as an Efficient Catalyst for Regioselective Bromination of Alkoxy Naphthalenes with Trimethyl Benzyl Ammonium Tribromide: Synthetic and Kinetic Approach, International Journal of Chemical Kinetics, 2014, 46, 1, 10  crossref(new windwow)
 References
1.
Verma, R.S., Reddy, M.J., Shastry, V.R. J.Chem.Soc.,Perkin Trans.II, 1976,469.

2.
Fendler, J.H. and Fendler, E.J. "Catalysis in Micellarand Macromolecular Systems." Academic press, NewYork, U.S.A., 1975, p 8-24

3.
Bunton, C. A. J. Mol. Liq. 1997, Vol 72, 231 crossref(new window)

4.
Zyka, J. Instrumentation in analytical chemistry. Vol II,Ellis Horwood Limited, West Sussex, England, 1994, p321

5.
Raghavan P.S., Vangalur S., Srinivasan.,VenkatasubramanianN. Ind. J. Chem. Vol. 21 B, 1982, p 42.

6.
Menger, F.M., and Portnoy, C.E. J. Am. Chem. Soc.1967, Vol.89, 4698. crossref(new window)

7.
Piszkiewicz, D. J. Am. Chem. Soc. 1977, Vol. 99, 1550. crossref(new window)

8.
Vogel A.I. A text book of quantitative inorganic analysis,ELBS, 1978, edition reprinted in 1986, p 681

9.
Frost, A. A., Pearson R.G. Kinetics and Mechanism,second edition, Wiley International edition, 1961, p 3.

10.
King, E.L. How chemical reactions occur, W.A.Benzamin,Inc, New York, 1964, p 5

11.
Morrison, R.T., Boyed, R.N. Organic chemistry, PrenticeHall, New Delhi, 1973, p. 1102