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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 298 (1959), S. 152-163 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pure crystallizable dichlorophosphoric acid H[PO2Cl2] is prepared by reaction of dichlorophosphoric acid anhydride P2O3Cl4 with the calculated amount of water at temperatures below -30°C.When heated under reduced pressure (12 mm), and hydrogen chloride simultaneously is passed through, the dichlorophosphoric acid splits off water and is therefore again transformed into the dichlorophosphoric acid anhydride P2O3Cl4.Contrary to this the dichlorophosphoric acid decomposes, when heated under atmospheric pressure, mainly by splitting off HCl.
    Notes: Reine, kristallisierbare Dichlorphosphorsäure H[PO2Cl2] läßt sich durch Reaktion von Dichlorphosphorsäureanhydrid P2O3Cl4 mit der berechneten Menge Wasser bei Temperaturen unterhalb -30°C darstellen.Beim Erhitzen unter vermindertem Druck (12 mm) und gleichzeitigem Durchleiten von Chlorwasserstoff spaltet die Dichlorphosphorsäure Wasser ab und geht dadurch wieder in das Dichlorphosphorsäureanhydrid P2O3Cl4 über.Dagegen zersetzt sich die Dichlorphosphorsäure beim Erhitzen unter Atmosphärendruck vorwiegend unter HCl-Abspaltung.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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