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Sur l'adsorption d'ions phosphoriques par les argiles
Published online by Cambridge University Press: 14 March 2018
Abstract
The adsorption of phosphate by montmorillonite and kaolinite (Na+ and Ca++) shows a maximum at pH 4–5, being 18 ± 2 mgm. eq./100 gm. of calcined montmorillonite (assumed as H2PO4−). This agrees with the calculated value for edge-adsorption, allowing for some steric hindrance (assumed crystallite diameter 300 Å). It is in accord with this idea, that pyrophyllite is found also to fix phosphate, but not talc and hectorite.
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- Copyright © The Mineralogical Society of Great Britain and Ireland 1954
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