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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 568-569 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AS a rule autoxidation research in the past has been confined to pure liquids being used as model substances such as methyl linoleate, tetralin, eyclohexene, etc., or composite solids such as lard, butter, rubber and a variety of polymers, but the information available concerning the autoxidation ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 95 (1966), S. 22-39 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wird gezeigt, daß gewisse Kobaltverbindungen, die in geringer Konzentration Autoxydations-Katalysatoren sind, bei Konzentrationserhöhung inhibierend wirken. In allen diesen Fällen führt die Inhibierung zu einer Verlängerung der Inkubationszeit, aber nur bei manchen Systemen (N-Alkylamid + Kobaltacetat) wird Retardierung auch nach dem Ende der Inkubationszeit beobachtet. Im System Kohlenwasserstoff + Kobalt(II)-Salicyl-aldiminkomplex wird trotz einer sehr bedeutsamen Verlängerung der Inkubationszeit nach deren Ende sogar bei den höchsten Konzentrationen keine Verzögerung der Sauerstoffaufnahme gefunden. Ein Mechanismus und ein kinetisches Schema, welche die neuartigen Versuchsergebnisse erklären, werden vorgeschlagen.
    Notes: It is demonstrated that certain cobalt compounds which are autoxidation catalysts at low concentrations become inhibitors at higher concentrations. In all these cases inhibition implies a lengthening of the induction period, but only in a few systems (N-alkylamide + cobaltous acetate) is the inhibitory effect observable beyond the induction period. In the case of hydrocarbons and cobalt(II) salicylaldimines the rate of oxygen uptake beyond the substantially increased induction period is not reduced even at the highest catalyst concentrations. A reaction mechanism and a kinetic scheme, consistent with the novel experimental observations, are proposed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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