Results 231 to 240 of about 32,504 (254)
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Acid-base chemistry of montmorillonitic and beidellitic-montmorillonitic smectite
Russian Journal of Electrochemistry, 2007Suspension of a Tunisian purified smectite and American montmorillonite are studied by acid-base potentiometric and mass titrations. These experimental methods are used to determine the point of zero net proton charge (PZNPC). A very good agreement is observed between the two kinds of experiments.
A. Kriaa, N. Hamdi, E. Srasra
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Clay Minerals, 1983
AbstractA preliminary set of ‘rules’ for acid-catalysis by ion-exchanged montmorillonites has been derived from the reaction of alkenes, alcohols and alicyclic acids over such catalysts. It has been shown that: 1. Cr(III) and Fe(III) are the most active interlayer cations.
J. M. Adams, T. V. Clapp, D. E. Clement
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AbstractA preliminary set of ‘rules’ for acid-catalysis by ion-exchanged montmorillonites has been derived from the reaction of alkenes, alcohols and alicyclic acids over such catalysts. It has been shown that: 1. Cr(III) and Fe(III) are the most active interlayer cations.
J. M. Adams, T. V. Clapp, D. E. Clement
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Montmorillonite: Electron-Optical Observations
Science, 1973Fine-grained micas are consistent impurities in Camp-Berteaux (Morocco) and Wyoming montmorillonites. These micas give selected-area electron diffraction spot patterns with triclinic, monoclinic, and hexagonal symmetries similar to those reported previously for montmorillonites.
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Interstratification in Montmorillonite
Clays and clay minerals (National Conference on Clays and Clay Minerals), 1964Abstract Direct analysis by Fourier transform methods revealed interstratification of three components for a homogeneous, potassium-treated and organic-solvated montmorillon-ite. An initial simple interpretation based on random mixing of two components was shown
Rodney Tettenhorst, W. D. Johns
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