Determination of the enthalpy of fusion of K3TaO2F4 and KTaF6

Areas of fusion and crystallization peaks of K 3 TaO 2 F 4 and KTaF 6 were measured using the DSC mode of a high-temperature calorimeter (SETARAM 1800 K). On the basis of these quantities, considering the temperature dependence of the calorimeter sensitivity, values of the fusion enthalpy of K 3 TaO...

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Bibliographic Details
Published in:Chemical papers 2009-08, Vol.63 (4), p.493-496
Main Authors: Kosa, Ladislav, Macková, Iveta, Netriová, Zuzana
Format: Article
Language:English
Subjects:
Biochemistry
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
enthalpy of fusion
high-temperature calorimeter
Industrial Chemistry/Chemical Engineering
K3TaO2F4
KTaF6
Materials Science
Medicinal Chemistry
Short Communication
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Summary:Areas of fusion and crystallization peaks of K 3 TaO 2 F 4 and KTaF 6 were measured using the DSC mode of a high-temperature calorimeter (SETARAM 1800 K). On the basis of these quantities, considering the temperature dependence of the calorimeter sensitivity, values of the fusion enthalpy of K 3 TaO 2 F 4 at the fusion temperature of 1181 K of (43 ± 4) kJ mol −1 and of KTaF 6 at the fusion temperature of 760 K of (8 ± 1) kJ mol −1 were determined.
ISSN:0366-6352
1336-9075
1336-9075
DOI:10.2478/s11696-009-0039-1