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The Interlayer Collapse during Dehydration of Synthetic Na0.7-Beidellite: A 23Na Solid-State Magic-Angle Spinning NMR Study
Beidellite Dehydration Interlayer collapse 23Na MAS-NMR
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2011/12/31
The dehydration and migration of the interlayer cation of the synthetic beidellite Na0.7Al4.7Si7.3O20-(OH)4·nH2O, were studied with solid-state 23Na and 27Al MAS-NMR, heating stage XRD, and thermograv...
A number of variable charge montmorillonites were prepared. One portion of each sample was extracted with ammonium chloride, while a second portion was first saturated with calcium chloride, washed, a...
Properties of Vermiculites and Smectites: Expansion and Collapse
Properties Vermiculites Smectites Expansion Collapse
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2012/2/21
Samples of smectites and vermiculites were evaluated to (1) determine the effects of source and amount of charge, (2) determine if a continuum of properties exists, and (3) improve the basis for diffe...
Properties of Vermiculites and Smectites: Expansion and Collapse
Vermiculites Smectites Expansion Collapse
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2011/11/16
Recent reports have suggested that the smectites and vermiculites exhibit a continuum in properties. This, in association with differences in methods and criteria between investigators, suggests the n...