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  • Inorganic Chemistry  (5)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 352 (1967), S. 184-191 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A method is given for the preparation of crystalline tungstates MeWO4 by recrystallization, or by chemical reactions, in molten salt solutions. Remarks are made upon the mechanism of formation, solubility and other characteristic properties of these tungstates.
    Notes: Die Darstellung kristalliner Wolframate MeWO4 (Me = Ba, Ca, Cd, Co, Mg, Mn, Ni, Pb, Sr, Zn) durch Umkristallisieren oder chemische Reaktionen in Schmelzlösungen wird beschrieben. Es werden Angaben zum Bildungsmechanismus, zur Löslichkeit und einigen weiteren Eigenschaften der Wolframate gemacht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 380 (1971), S. 37-40 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Borates of the compositions formulated above are prepared in crystalline form by cooling their molten solutions in the corresponding borate M2+O · xB2O3. Some properties of the compounds are reported.
    Notes: Die Borate M2+Sn(BO3)2 (M = Mg, Ca, Sr, Ba, Cd, Mn, Co), M2+Zr · (BO3)2 (M = Ca, Sr, Ba, Cd) und BaTi(BO3)2 werden durch Abkühlen einer schmelzflüssigen Lösung in einem Überschuß des jeweiligen Borates M2+O · xB2O3 in kristalliner Form dargestellt. Einige Eigenschaften der Verbindungen werden mitgeteilt.
    Additional Material: 2 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 386 (1971), S. 288-296 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition metal manganates with spinel structure are prepared by joint decomposition of MnSO4 and MeSO4 (Me = Co, Zn, Cu, Ni) about 1000°C in the fused sodium potassium sulfate eutectic. Complete series of mixed oxides MexMn3-xO4+γ have been observed within the limits: Co: 0 〈 x 〈 3; Zn: 0 〈 x 〈 1,5; Cu: 0 〈 x 〈 1; Ni: 0 〈 x 〈 1. The compounds Co2.2Mn0.8O4 to Co1.9Mn1.1O4, ZnMn2O4, Zn1.25Mn1.75O4 may be prepared in high yield and as single-phase compounds. The oxygen deficit of the manganates has the limits 0,02 〉 γ 〉 -0.08. The lattice constants of the spinels are compared with literature dates.
    Notes: Durch gemeinsame Zersetzung von MnSO4 und MeSO4 (Me = Co, Zn, Cu, Ni) in der eutektischen K—Na-Sulfat-Schmelze bei Temperaturen um 1000°C sind grobkristalline Übergangsmetall-Manganate darstellbar. Dabei wurden lückenlose Reihen im Spinellgitter kristallisierender Mischoxide MexMn3-xO4+γ in folgenden Grenzen erhalten: Co: 0 〈 x 〈 3; Zn: 0 〈 x 〈 1,5; Cu: 0 〈 x 〈 1; Ni: 0 〈 x 〈 1. Folgende Verbindungen lassen sich mit definierter Zusammensetzung in guter Ausbeute darstellen: Co2,2Mn0,8O4 bis Co1,9Mn1,1O4, ZnMn2O4 und Zn1,25Mn1,75O4. Das Sauerstoffdefizit der Manganate lag zwischen 0,02 〉 γ 〉 -0,08. Die Gitterkonstanten der Spinelle werden mit Literaturangaben verglichen.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 330 (1964), S. 164-169 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A preparation method for high-melting crystalline metal oxides using thermally instable metal compounds which are decomposed in a fused alkali salt is described. Details of several decomposition reactions are briefly discussed.
    Notes: Es wird eine Darstellungsmöglichkeit für hochshmelzende kristalline Metalloxide durch thermischen Zerfall bei höherer Temperature instabiler Verbindungen beschrieben. Die Zersctzunggsreaktionen spielen sich hierbei in einer zweikomponentigen schmelzfüssigen Lösung ab, die aus der instabilen Verbindung und eimen Alkalisalz. Auf Einzelheiten des Reaktionsablaufs wird eingegangen.
    Additional Material: 3 Ill.
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  • 5
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and crystal growth of halogenotungstates and halogenomolybdates from molten salt solutions are described. Characteristic properties of this new class of compounds are communicated.
    Notes: Darstellung und Züchtung größerer Kristalle der Halogenowolframate und Halogenomolybdate MeO · MeAO4 · nMeX2 (Me = Ca, Sr, Ba; A = Mo, W; n = 1, 1,5; 2; X = Cl, Br) aus Schmelzlösungen werden beschrieben. Einige charakteristische Eigenschaften dieser neuen Klasse von Verbindungen werden angegeben.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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