Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 22: Issue 1
Thermal and X-ray diffraction investigations of vanadium(V) oxide-alkali persulfate binary systems
Authors:
F. Jasim Department of Chemistry, College of Science University of Baghdad Baghdad Iraq

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H. J. Jaffer Department of Chemistry, College of Science University of Baghdad Baghdad Iraq

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M. M. Barbooti Department of Chemistry, College of Science University of Baghdad Baghdad Iraq

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Pages:
33–40
Online Publication Date:
25 Jul 2005
Publication Date:
01 Oct 1981
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01915693
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Thermoanalytical investigations of the V2O5-K2S2O8 system have revealed that, in the presence of excess amounts of V2O5, the initial decomposition temperature is lowered compared to that of the pure salt. An explanation for this lowering is based on the interaction between V2O5 and the peroxo group of the persulfate ion. The reaction however, is, not unimolecular. The presence of an unknown potassium sulfate complex of V(V) with a catalytic character is indicated by XRD patterns obtained for samples heated up to 410°. It has been found that the formation of K3VO8, KV(SO4)2, K3V5O14 and K4V10O27 depends on whether V2O5 or K2SO4 is present in excess during thermal decomposition.

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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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