Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 24: Issue 1
Kinetic parameters of the thermal decompositions of nitritonickelates(II)
Authors:
K. Bogusławska Institute of General Chemistry Technical University Lódz Poland

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A. Cygaňski Institute of General Chemistry Technical University Lódz Poland

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Pages:
15–21
Online Publication Date:
25 Jul 2005
Publication Date:
01 Jun 1982
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01914795
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Kinetic parameters of thermal decomposition of compounds of general formulaM2IMII[Ni(NO2)6], whereMI= K+, Rb+ or Cs+ andMII= Ca2+, Sr2+ or Ba2+, were investigated on the basis of the respective thermal curves. Calculations of the reaction order and activation energy carried out by the Coats-Redfern method and by Doyle's method (modified by Zsakó) gave similar results, The reaction order is 2 for all the compounds investigated. In the group of potassium salts the activation energy increases fromMII=Ca2+ toMII=Ba2+. In the groups of rubidium and caesium salts, the lowest activation energy is observed whenMII=Sr2+. Such behaviour of the nitritonickelates is explained in terms of structures and the principle of maximum density.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
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 1388-6150 (Print)
ISSN 1588-2926 (Online)

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