Infrared study of water sorption on Na-, Li-, Ca-, and Mg-exchanged (SWy-1) montmorillonite

An environmental infrared microbalance (EIRM) cell was used to study H2O sorption on two montmorillonite samples as a function of water content and type of exchangeable cation. The vibrational spectra showed that H2O sorbed to the clay at low-water content was strongly influenced by the exchangeable...

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Veröffentlicht in:	Clays and clay minerals 2000-02, Vol.48 (1), p.120-131
Hauptverfasser:	Xu, Weizong, Johnston, Cliff T, Parker, Paul, Agnew, Stephen F
Format:	Artikel
Sprache:	eng
Schlagworte:	alkali metals alkaline earth metals calcium cation exchange capacity chemical composition chemical reactions clay mineralogy clay minerals Earth sciences Earth, ocean, space Exact sciences and technology experimental studies geochemistry infrared spectra lithium magnesium metals mineral-water interface Mineralogy montmorillonite rock, sediment, soil sed rocks, sediments Sedimentary petrology sheet silicates Silicates sodium sorption spectra
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Zusammenfassung:	An environmental infrared microbalance (EIRM) cell was used to study H2O sorption on two montmorillonite samples as a function of water content and type of exchangeable cation. The vibrational spectra showed that H2O sorbed to the clay at low-water content was strongly influenced by the exchangeable cation and by the close proximity to the clay surface. At water contents
ISSN:	0009-8604 1552-8367
DOI:	10.1346/ccmn.2000.0480115