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Determination of layer charge of soil smectites by alkylammonium method : effect of removal of hydroxy-interlayering

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Title Determination of layer charge of soil smectites by alkylammonium method : effect of removal of hydroxy-interlayering
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Creator Ray, S.K., Chandran, P., Bhattacharyya, T. and Pal, D.K.
 
Subject layer charge, soil, smectites, alkylammonium method, effect, removal, hydroxy-interlayering
 
Description Not Available
Hydroxy-interlayering in smectites of shrink-swell soils of Peninsular India is more common than exception. These hydroxy-interlayers prevent the determination of actual layer charge by alkylammonium method by obstructing the normal intrusion of alkyalmmonium ions into the interlayers. This may have resulted in the formation of relatively more layers with bi-pseudotrilayer transition and of paraffin type which overestimates the layer charge of core lattice mineral. Several extractant were tried to remove the hydroxy-interlayered materials and to determine the actual layer charge of the cleaned clays. But they did not yield desired results. However, Stripping of clay samples with 0.25 N EDTA solution (pH 7.0) removed the hydroxy-interlayers. The clay samples (
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Date 2020-06-27T01:30:17Z
2020-06-27T01:30:17Z
2006-12-01
 
Type Presentation
 
Identifier Ray, S.K., Chandran, P., Bhattacharyya, T. and Pal, D.K. (2006). Determination of layer charge of soil smectites by alkylammonium method: effect of removal of odeling-interlayering 15th Annual Convention and National Symposium on “Clay research in relation to Agriculture, Environment and Industry” of the Clay Minerals Society of India, BCKVV, Mohanpur, West Bengal, December 1-2 2006, pp3
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http://krishi.icar.gov.in/jspui/handle/123456789/37490
 
Language English
 
Relation Not Available;
 
Publisher Clay Minerals Society of India, BCKVV, Mohanpur, West Bengal,