Stability of tungsten(VI) oxide dispersions in electrolyte solutions

The aggregation stability of tungsten oxide hydrosols is studied by the photometric and electrooptical methods. Coagulation thresholds determined in solutions of 1 : 1, 2 : 1, and 3 : 1 electrolytes obey the Schulze-Hardy rule. The coagulation is shown to occur by the barrier mechanism predominantly...

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Bibliographic Details
Published in:Colloid journal of the Russian Academy of Sciences 2011-12, Vol.73 (6), p.834-840
Main Authors: Petrov, Yu. Yu, Avvakumova, S. Yu, Sidorova, M. P., Ermakova, L. E., Voitylov, V. V., Voitylov, A. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Polymer Sciences
Surfaces and Interfaces
Thin Films
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Summary:The aggregation stability of tungsten oxide hydrosols is studied by the photometric and electrooptical methods. Coagulation thresholds determined in solutions of 1 : 1, 2 : 1, and 3 : 1 electrolytes obey the Schulze-Hardy rule. The coagulation is shown to occur by the barrier mechanism predominantly through adhering of small particles to large ones without considerable changes in the sizes of the latter.
ISSN:1061-933X
1608-3067
DOI:10.1134/S1061933X11060159