NDLI: Stability of ferric oxide hydrosols

Content Provider	Royal Society of Chemistry (RSC)
Author	Watillon, A. Dumont, F.
Copyright Year	1971
Abstract	Ferric oxide hydrosols are composed of a haematite core surrounded by an hydrated oxide shell. Interactions have been studied, on both sides of the p.z.c., between ferric oxide surface and a series of anions and cations having characteristics ranging from structure promoters to structure breakers. Although ferric oxide has a moderate crystalline field, the observed adsorption sequences show that the interface acts as a structure promoter for water molecules. The large spreading of the measured adsorption sequences, especially at extreme pH values, proved the coagulation technique to be a good tool for the study of ion-surface interactions. A new type of behaviour has been observed; at low surface potentials the ions behave as indifferent but at higher surface potentials they are specifically adsorbed.
Starting Page	352
Ending Page	360
Page Count	9
File Format	PDF
ISSN	03669033
Volume Number	52
Journal	Discussions of the Faraday Society
DOI	10.1039/DF9715200352
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hematite Ferric Adsorption Flocculation PH Iron(III) oxide
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry

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Stability of ferric oxide hydrosols