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Influence of surface-active substances on depolarization kinetics

โœ Scribed by H.P. Agarwal

Publisher
Elsevier Science
Year
1963
Tongue
English
Weight
256 KB
Volume
8
Category
Article
ISSN
0013-4686

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โœฆ Synopsis

The previously described "depolarization kinetics" is being used for studying the surface activity of surfactants. The surface activity of a few pH indicators studied varies in the order: bromothymol blue > thymol blue > bromo-cresol purple > methyl red.

R&sum&-La "Cinetique de depolarisation" l'activite des constituants superticiels.

Ctablie anttrieurement

est ici appliquee a l'etude de Les activites de surface de quelques indicateurs de pH peuvent Etre ainsi classees dans l'ordre: bleu bromo-thymol > bleu thymol > pourpre bromocresol > rouge mtthyle.

Zusammenfassung-Die'schon friiher beschriebene Methode der "Depolarisationskinetik" wird zur Untersuchung der Oberfl~chenaktivitat von Oberflkhen-aktiven Stoffen angewendet. Die Oberflkhenaktivitlt der untersuchten pH-Indikatoren iindert sich in der Reihenfolge: Bromthymolblau > Thymolblau > Bromcresolscharlach > Methylrot.

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## Abstract Based on the generally accepted concept of the influence exerted by the value of the electrode potential on the degree of coverage of the electrode surface with molecules of the adsorbed surfaceโ€active substance (SAS), an equation has been derived in the present paper which meets the re