Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 605 (1991), S. 117-123 
    ISSN: 0044-2313
    Keywords: Nickel, zinc dimanganese tetraoxide ; barium permanganate ; hexaaquanickel(II) permanganate ; hexaaquazinc(II)permanganate ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Ceramic Powders. IX. NiMn2O4 and ZnMn2O4 Formation by Decomposition of [Ni(H2O)6] (MnO4)2 and [Zn(H2O)6] (MnO4)2Improved preparation of Ba(MnO4)2 from BaMnO4 is reported. Thermal or hydrothermal decomposition of [Ni(H2O)6] (MnO4)2 yields intermediately an amorphous manganate(IV) which forms crystalline NiMnO3 and α-Mn2O3 in the range T 〉 400°C. NiMn2O4 is formed above 730°C in accordance with the phase diagram. On the other hand, ZnMn2O4 is already at 300°C obtained from [Zn(H2O)6](MnO4)2 at hydrothermal conditions.
    Notes: Es wird über eine verbesserte Präparation von Ba(MnO4)2 aus BaMnO4 berichtet. Die thermische bzw. hydrothermale Zersetzung von [Ni(H2O)6](MnO4)2 führt über amorphes Manganat (IV) im Temperaturbereich T 〉 400° C zur kristallinen Ausscheidung von NiMnO3 und α-Mn2O3, woraus sich in Übereinstimmung mit dem Phasendiagramm ab 730° C NiMn2O4 bildet. ZnMn2O4 kann aus [Zn(H2O)6](MnO4)2 unter hydrothermalen Bedingungen bereits bei 300° C erhalten werden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...