NDLI: Kinetics and mechanism of oxidation reaction of lactose by N-bromophthalimide: Micelles used as a catalyst

Content Provider	Springer Nature Link
Author	Katre, Yokraj Singh, Minu Singh, Ajaya K.
Copyright Year	2012
Abstract	The kinetics and mechanism of the oxidation of lactose by N-bromophthalimide in the absence and presence of cetyltrimethylammonium bromide and sodium dodecyl sulfate micelles was investigated in the presence of sulfuric acid medium. Under pseudo-first-order conditions reaction rate agreed with a first-, fractional- and negative fractional-order kinetics in N-bromophthalimide, lactose and sulfuric acid, respectively. In the presence of additives, the critical micellar concentration values were lower than those given in the literature. The catalytic role of cationic micelles was explained by the Berezin model. The anionic micelles showed slightly inhibitory effect. The influence of salts, phthalimide and mercuric acetate on the reaction rate was also studied. Using the kinetic data, the rate constant, binding constants, and corresponding activation parameters were evaluated. A possible reaction mechanism, which is based on the kinetic results and the product analysis, is proposed.
Starting Page	391
Ending Page	400
Page Count	10
File Format	PDF
ISSN	1061933X
Journal	Colloid Journal
Volume Number	74
Issue Number	3
e-ISSN	16083067
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-06-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polymer Sciences Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Physical and Theoretical Chemistry Surfaces and Interfaces

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