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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 390 (1972), S. 311-315 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es werden die Darstellung und die Eigenschaften der Salze M3IVO2F4 (M = NH4+, Na+, K+, 1/2 Ni2+ 1/3 [Co(NH3)6]3+) beschrieben. Aus Leitfähigkeitsmessungen von Na3VO2F4 in verschiedener Konzentration wird auf eine Dissoziation in 3 Na+- und VO2F43--Ionen geschlossen. Der Ionenaustausch von (NH4)3VO2F4-Lösung am Kationenaustauscher (H+-Form) zeigt, daß die entsprechende Säure zum Teil zu V2O5 zerfällt. (NH4)3VO2F4, reagiert mit BaCl2- und AgNO3- Lösungen unter Bildung von BaVO2F3 bzw. AgVO3. Röntgen-Untersuchungen sind an (NH4) VO2F4- und Na3VO2F4-Pulvern durchgeführt worden.
    Notes: Preparation and properties of the salts of the series MI3VO2F4, where M = NH4+, Na+, K+, 1/2 Ni2+, and 1/3 [Co(NH3)6]3+ are described. Molecular conductivity of Na3VO2F4 at different dilutions indicates that Na3VO2F4 dissociates into 3 Na+ and VOaF43- ions. Ion exchange study of (NH4)3VO2F4 solution through cation exchange resin (H+ form) suggests that the corresponding acid decomposes partly to vanadium pentoxide. Reaction between (NH4)3VO2F4 with BaCl2 and AgNO3 solutions shows the formation of BaVO2F3 and AgVO3 respectively. Thermogravimetric study of (NH4)3VO2F4 shows the formation of impure vanadium pentoxide as the ultimate product on heating up to 450°C. X-ray powder diffraction data are given for (NH4)3VO2F4 and Na3VO2F4.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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