Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1696379 | Applied Clay Science | 2009 | 7 Pages |
Abstract
The mineralogical composition of seven edible clays from West Africa (Ivory Coast, Guinea and Senegal) was determined by X-ray diffraction, thermal (DTA, TGA and DSC) and chemical (ICP-MS and ICP-OES) analyses and measurement of specific surface areas and density. The major compounds were kaolinite, illite, muscovite, quartz and feldspars. Electrochemical analysis of clay suspensions by voltamperometry (SnO2:F) yielded no results at 6.5 < pH < 7 and pH â 8.3. However, ionic species transfer was revealed at pH â 1.8 by an anodic peak. The analysis by X-ray diffraction of the metal cation layers which were deposited on the blades (SnO2:F), showed the presence of mineral elements having therapeutic implications such as Fe and Zn.
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Authors
J.R. Odilon Kikouama, K.L. Konan, A. Katty, J.P. Bonnet, L. Baldé, N. Yagoubi,