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Surface Charge Characterization of Layer Silicates by Competitive Adsorption of Two Organic Divalent Cations
Surface Charge Characterization Layer Silicates Competitive Adsorption Two Organic Divalent Cations
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2012/2/20
Diquat2+ (1,1′-ethylene-2,2′-dipyridinium ion) and paraquat2+ (1,1′-dimethyl-4,4′-dipyridinium ion) were competitively adsorbed by Na-saturated kaolinites, smectites and expanded and collapsed vermicu...
The Effect of Exchangeable Cations on the Sorption of Chlorophyllin by Montmorillonite
Effect Exchangeable Cations Sorption Chlorophyllin Montmorillonite
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2012/2/20
The sorption of commercial K-Cu chlorophyllin by a sample of montmorillonite saturated with different exchange ions was studied. The organic anions are sorbed on external surfaces while K displaces mo...
Extraction of Interlayer K from Phlogopite Specific Effects of Cations Role of Na and H Concentrations in Extraction Solutions
Extraction Interlayer K Phlogopite Specific Effects Cations Role Na H Concentrations Extraction Solutions
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2012/2/20
The accurate optical observation of alteration fringes developing in phlogopite flakes, shows that the morphology of the fringes is specific for some cations, such as Na, Mg and Ca, replacing K.A care...
Measurement of Exchangeable Cations in Bentonites
Measurement Exchangeable Cations Bentonites
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2012/2/21
High swelling bentonites cannot be analyzed for exchangeable cations with exactly the same technique as most soils. To resolve varied techniques used in the past and to establish a reliable procedure,...
X-ray Diffraction Band Profiles of Montmorillonite—Influence of Hydration and of the Exchangeable Cations
X-ray Diffraction Band Profiles Montmorillonite Hydration
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2011/11/16
Previous studies of diffraction band profiles of montmorillonite are extended to the 13, 20 band which, for reasons discussed, is more sensitive to structural details than the diffraction bands consid...