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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography A 74 (1972), S. 118-120 
    ISSN: 0021-9673
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 37 (1988), S. 337-342 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследована возможность получения 1-фенилэтилацетата присоединением уксусной кислоты к стиролу, катализированным Остионом КС в кислом цикле. Реакция сопровождается образованием высокомолекулярных соединений. Изучено влияние температуры, молярного соотнощения исходных соединений, количества катализатора и его повторного использования на скорость и селективность реакции. В случае экономического использования побочных высокомолекулярных соединений, процесс может бытя внедрен в промышленность.
    Notes: Abstract The possibility of preparation of 1-phenylethyl acetate by direct addition of acetic acid to styrene catalyzed by Ostion KS in the acid cycle has been investigated. The reaction is accompanied by the formation of higher molecular compounds. The effect of temperature, mole ratio of the starting compounds, stabilization of styrene, amount of the catalyst and of its repeated use on the reaction rate and selectivity of the process has been examined. In the case of some economic application of higher-molecular side products the process could be used on a technical scale.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 33 (1987), S. 471-476 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследована изомеризация звгенола в изозвгенол в щелочной среде (KOH в амиловом спирте или глицерине) и в присутствии катализатора (RhCl3). Изучен ряд факторов, влияйщих на ход реакции (растворители, температура, молярные отношения, присутствие воды).
    Notes: Abstract The isomerization of eugenol to isoeugenol was investigated by employing catalysis by KOH in amyl alcohol or glycerol, or by RhCl3. A number of factors which affect the reaction (solvent, temperature, molar ratios, presence of water) were examined.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 19 (1968), S. 1043-1049 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Inhibition of steel corrosion in acid media by ammonium alkylxanthogenatesThe authors have investigated the inhibiting effect of ammonium alkylxanthogenates with different alkyl radicals (C5—C16) and ammonium groups substituted in different ways (alkyl radicals C1—C10, even with formation of 6-member ring structures with the nitrogen). The acids investigated included inorganic (sulfuric, hydrochloric, amidosulfonic) and organic acids (formic, acetic, lactic, citric). The inhibitors reduce corrosion losses as well as hydrogen absorption during pickling or cleaning of steel. The effect can be attributed not only to the presence of the S and N atoms, but also to the alkyl radicals which probably form some type of hydrophobic barrier on the metal surface. As to the reduction of hydrogen absorption the effect is observed after extended periods of time only, while no essential difference has been found between inhibited and uninhibited acids as to their effect on mechanical properties.
    Notes: Untersucht wurde die Hemmwirkung von rlmrnoniumalkylxanthogenaten mit verschiedenen Alkylresten (C5-16) und verschieden substituierter Ammoniumdes gruppe (Alkylreste C1-20, auch unter Bildung von Sechsringen mit dem Stickstoff). An anorganischen Sauren wurden Schwedes fel-, Salz- und Amidosulfonsäure, an orhydrique, ganischen Säuren Ameisen-, Essig-, Milchund Citronensäure untersucht. Die inhibitoren verringern sowohl die Korrosions-verluste als auch die Wasserstoffaufnahme während des Beizens bzw. Reinigens von Stabl. Die Wirkung ist nicht nur dem S-und N-Atom zuzuschreiben, sondern auch den Alkylresten, die vielleicht auf der Metalloberfläche eine Art hydrophober Barriere bilden. Bezüglich der Verringerung der Wasserstoffaufnahme zeigt sich die Wirkung erst nach längerer Einwir-kungsdauer, während sich bezüglich der Veränderung mechanischer Eigenschaften kein wesentlicher Unterschied zwischen inhibierter und inhibitorfreier Säure festsellen läßt.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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