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Adsorption and Kinetic Studies of the Intercalation of Some Organic Compounds onto Na+-Montmorillonite

✍ Scribed by A.H. Gemeay; A.S. El-Sherbiny; A.B. Zaki

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
151 KB
Volume
245
Category
Article
ISSN
0021-9797

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✦ Synopsis

The adsorption and the kinetics of the intercalation of metanil yellow dye, p-aminodiphenylamine (p-NH(2)-DPA), and benzidine by colloidally dispersed Na(+)-montmorillonte (Na(+)-MMT) have been studied. The adsorption isotherm parameters confirmed the occurrence of chemical adsorption that is based on the cation-exchange process. The selectivity of these compounds toward Na(+)-MMT follows the order metanil yellowp-NH(2)-DPA>benzidine. The rate of oxidation has been quantitatively measured using a stopped-flow spectrophotometer. The rate constant follows the order benzidine

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