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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 298 (1959), S. 316-336 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: In paper chromatography of condensed phosphates in acid medium the presence of little quantities of ammonia is necessary. For the explanation of this fact, which was not previously understood, it has been shown that ammonia can be replaced by other monovalent cations. The dependence of chromatographic separation on the cation type and cation concentration has been, therefore, investigated. Furthermore, it has been demonstrated that cations migrate independent of the phosphate anions. However, the presence of cations is necessary in order to differentiate between the solubilities of condensed phosphates by virtue of their molecular weight and their constitution.
    Notes: Bei der Papierchromatographie kondensierter Phosphate in saurem Medium erwies sich die Anwesenheit kleiner Mengen von Ammoniak als notwendig. Zur Aufklärung dieser bisher unverstandenen Tatsache wird gezeigt, daß das Ammoniak durch andere einwertige Kationen ersetzt werden kann, die Trennwirkung in Abhängigkeit von Kationenart und -menge untersucht und außerdem nachgewiesen, daß die Kationen unabhängig von den Phosphatanionen wandern. Die Gegenwart der Kationen ist aber notwendig, um die Löslichkeit der kondensierten Phosphate in Abhängigkeit von ihrem Molekulargewicht und ihrer Konstitution zu differenzieren.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
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