Micellar catalysis in the systems arylamine-diphenylamine-NO2

By methods of UV and IR spectroscopy and thermogravimetry reactions of diazotizaion and azo coupling were studied in the systems of primary arylamine ( p -nitro-, p -carboxy- and p -sulfoaniline)- diphenylamine -nitrite ion in water and micellar media on the basis of surfactants. The micellar cataly...

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Bibliographic Details
Published in:Russian journal of general chemistry 2008, Vol.78 (11), p.2019-2024
Main Authors: Doronin, S. Yu, Chernova, R. K.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
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Summary:By methods of UV and IR spectroscopy and thermogravimetry reactions of diazotizaion and azo coupling were studied in the systems of primary arylamine ( p -nitro-, p -carboxy- and p -sulfoaniline)- diphenylamine -nitrite ion in water and micellar media on the basis of surfactants. The micellar catalysis effect of sodium dodecylsulfate in the micellar media was revealed. Rate of diazotization was shown to be independent of the surfactants of various types. Formation of ionic associates of azo dyes with dodecylsulfate anions in premicellar region was established and physicochemical characteristics of the associates were estimated.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363208110066