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Oxidizing Power of the Surface of Attapulgite Clay

Published online by Cambridge University Press:  01 January 2024

John G. Miller ,
W. Linwood Haden Jr.  and
T. Dixon Oulton
John G. Miller
Affiliation:
University of Pennsylvania, Philadelphia, Pa., USA
W. Linwood Haden Jr.
Affiliation:
Minerals and Chemicals Philipp Corporation, Menlo Park, New Jersey, USA
T. Dixon Oulton
Affiliation:
Minerals and Chemicals Philipp Corporation, Menlo Park, New Jersey, USA
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Abstract

It has been demonstrated that ferric iron is the principal source of the oxidizing action of the surface of attapulgite clay. The extent of oxidizing action in a given time (the oxidizing power) has been determined as a function of the temperature of calcination of the clay in the range 100–900°C.

The oxidizing power was measured with TiCl3 in aqueous acid medium by direct titration of the clay in situ and by titration of extracts of the clay. The dissolution of the metallic cations of the clay was also studied in the same medium. The results have been correlated with structural changes caused by the calcination of attapulgite.

Type
General
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 12 , February 1963 , pp. 381 - 395
Copyright
Copyright © The Clay Minerals Society 1963

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