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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 429 (1977), S. 25-33 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemical Transport of Fe2O3 by TeCl4The behaviour of the transport of Fe2O3 by TeCl4 is calculated by the aid of the solubulities in the gas phase. TeOCl2 existing in the gas phase is the essential species for the transport of oxygen. According to the calculations a reversion of the transport direction appears in the temperature range of about 800°C, which was confirmed experimentally. Stoichiometric single crystals of α-Fe2O3 were obtained showing in most cases rhombic plates of maximum dimensions 15° 10 · 1 mm.
    Notes: Das Transportverhalten von Fe2O3 mit TeCl4 wird über die Gasphasenlöslichkeiten berechnet. Das in der Gasphase existierende Spezies TeOCl2 ist für den Sauerstofftransport im System entscheidend. Im Temperaturbereich um 800°C wird eine Umkehr der Transportrichtung berechnet und experimentell beobachtet. Stöchiometrische α-Fe2O3-Kristalle wurden bevorzugt als rhomboedrische Platten bis zu 15 · 10 · 1 mm mit sehr guten Flächen erhalten.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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