Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 214: Issue 6
Mössbauer studies on thermal decomposition of some alkali tris (malonato) ferrate (III) tetrahydrates
Authors:
B. Randhawa Guru Nanak Dev University Department of Chemistry 143 005 Amritsar India

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Sandeep Kaur Guru Nanak Dev University Department of Chemistry 143 005 Amritsar India

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P. Bassi Guru Nanak Dev University Department of Chemistry 143 005 Amritsar India

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Pages:
469–478
Online Publication Date:
27 Jul 2005
Publication Date:
17 Dec 1996
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02163561
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Abstract  

Thermal decomposition of some alkali tris (malonato) ferrate (III) tetrahydrates, i. e. M3 [Fe(CH2C2O4)3]·4H2O (M=Na, K) has been studied in the temperature range of 433–973 K in static air atmosphere using Mössbauer, IR and TG-DTG-DTA techniques. Mössbauer spectra are reported at different stages to study the mechanism of decomposition. The anhydrous complex decomposed into -Fe2O3 of varying particle sizes and alkali metal malonate/carbonate in successive stages. In the final stage of remixing of cations, a solid state reaction between -Fe2O3 and alkali metal carbonate/oxide gives fine particles of the respective ferrites at temperatures lower than for oxalate precursor or even for ceramic method. Thermal stability obeys the order: sodium > potassium > lithium tris(malonato) ferrate (III).

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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