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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 466 (1980), S. 81-86 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tellur-Niob-OxideDie Reaktion zwischen TeO2 und Nb2O5 in Temperaturbereich von 500 bis 850°C wurde röntgenographisch untersucht. Folgende weiße Verbindungen wurden oberhalb etwa 525°C beobachtet: TeO2 · 3Nb2O5, 3TeO2 · Nb2O5 und 4TeO2 · Nb2O5. Das System TeO2—Nb2O5 ist von komplexerer Art als das einfache binäre System TeO2—V2O5, ist jedoch auch ganz verschieden von TeO2—Ta2O5. Keine isostrukturellen (Te, V)O-, (Te, Nb)O- und (Te, Ta)O-Verbindungen wurden beobachtet.
    Notes: The solid-state reaction between TeO2 and Nb2O5 was studied by means of X-ray powder diffraction, at room temperature, using samples prepared in the interval of 500°C to 850°C. Several whitish coloured stable mixed oxide phases have been found, corresponding to the formulas TeO2 · 3Nb2O5, 3TeO2 · Nb2O5 and 4TeO2 · Nb2O5. The phase distribution differs from that in TeO2—V2O5 and TeO2—Ta2O5 systems and no isomorphism relationships with phases in these oxide systems have been noticed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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