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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 269 (1991), S. 1071-1073 
    ISSN: 1435-1536
    Keywords: Layer silicates ; crystallization ; organic template ; x-ray and HREM investigation ; layer structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A new layered silicate has been synthesized in the quaternary system Na2O−SiO2−H2O-polymeric organic cation. The polymeric organic cation was intercalated into the silicate during crystallization. Composition, structure, and x-ray diffraction pattern of the new silicate do not fit with any known layered silicate [1–5]. Many similarities were found to hydrous alkali silicates (metal silicate hydrates, M-SH-type). The new silicate differs from M-SH by a high structural stability, against a wide range of different energetic influences. Due to the relatively high stability, high-resolution electron microscopy (HREM) can be applied to study the layer structure of this silicate as a representative of the M-SH silicates. All known M-SH, for example, magadiite and kenyaite are decomposed by the electronic beam.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 321 (1979), S. 529-536 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Decomposition of tert.-Butyl Hydroperoxide by ZeolitesZeolites catalyze the decomposition of tert.-butyl hydroperoxide in the liquid-phase. Structure, cation and degree of ion-exchange influence the catalytic activity of the zeolithe. The highest rates of the decomposition were obtained by means of zeolites containing transition metal cations. It is possible to use the decomposition of tert.-butyl hydroperoxide, catalyzed by zeolites, for the epoxidation of olefins.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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