Crystalline Swelling Process of Mg-Exchanged Montmorillonite: Effect of External Environmental Solicitation

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Swelling of Montmorillonite in Polar Organic Liquids

-The crystalline and osmotic swelling of N~, Cs-, Mgand Ca-montmorillonite has been measured in dimethyl sulphoxide and in formamide, N-methyl formamide, dimethyl formamide, N-methyl acetamide and dimethyl acetamide. These liquids have similar dipole moments but their relative permittivities vary appreciably from values less than water to values greater than water. Na montmorillonite exhibits o...

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INFRARED STUDIES OF 1-HEXENE ADSORBED ONTO Cr3+-EXCHANGED MONTMORILLONITE

-When 1-hexene was adsorbed by Cr3+-montmorillonite at room temperature, all evidence of C=C(str) vibrations was lost. Protonation of the alkene occurred, and the secondary carbocation formed was bound at a site on the primary coordination sphere of the interlayer cation. Some of the hydrogen atoms of these primary-sphere water molecules were involved in strong hydrogen bonds to the silicate sh...

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ژورنال

عنوان ژورنال: Advances in Civil Engineering

سال: 2018

ISSN: 1687-8086,1687-8094

DOI: 10.1155/2018/8130932