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Studies in Tropical Soils I. Identification and Approximate Estimation of Sesquioxide Components by Adsorption of Alizarin
Published online by Cambridge University Press: 27 March 2009
Extract
1. An alizarin-adsorption method discovered by Schmelev has been successfully applied, with suitable modification, to the identification and approximate estimation of the free sesquioxide components of clays and soils.
2. Details of the tested procedure are presented, together with some preliminary results obtained.
3. The free alumina component of clays and soils appears to adsorb alizarin only after ignition, whereas the free iron oxide component adsorbs it only in the fresh, unignited state. Hence, by applying the procedure to the fresh, as well as to the ignited material, an approximate estimate of both components may be accomplished in a relatively short time.
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- Copyright © Cambridge University Press 1931
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