Affiliation:
1. National Research Center “Kurchatov Institute”
Abstract
The adsorption of methylene blue and eosin Y on opal-cristobalite rocks has been studied. The amount of methylene blue and eosin Y adsorbed on opal-cristobalite rocks is determined by the amorphous silica and clay minerals contained in the rocks. The possibility of using the results of IR spectroscopy for accurate determination of the amorphous silica content in opal-cristobalite rocks is shown. For opal-cristobalite rocks, a higher value of the point of zero charge is associated with lower silicon and aluminum contents in them and higher total content of alkali and alkaline earth metals.
Publisher
The Russian Academy of Sciences
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