Enthalpic analysis of the CaTiSiO5 system

Nerád, I., Kosa, L., Mikšíková, E. and Adamkovičová, K. Enthalpic analysis of the CaTiSiO5 system Chemical Papers, Vol.60, No. 4, 2006, 274-278

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Nerád, I.
Kosa, L.
Mikšíková, E.
Adamkovičová, K.
Title Enthalpic analysis of the CaTiSiO5 system
Journal name Chemical Papers
Publication date 2006
Year available 2006
Volume number 60
Issue number 4
ISSN 0366-6352
Start page 274
End page 278
Place of publication Poland
Publisher Versita
Collection year 2006
Language english
Subject 250000 Chemical Sciences
250200 Inorganic Chemistry
Abstract/Summary The relative enthalpy of titanite and enthalpy of CaTiSiO5 melt have been measured using drop calorimetry between 823 K and 1843 K. Enthalpies of solution of titanite and CaTiSiO5 glass have been measured by the use of hydrofluoric acid solution calorimetry at 298 K. Enthalpy of vitrification at 298 K, δvitr H(298 K) = (80.7 ± 3.4) kJ mol−1, and enthalpy of fusion at the temperature of fusion 1656 K, δfus H(1656 K) = (139 ± 3) kJ mol−1, of titanite have been determined from experimental data. The obtained enthalpy of fusion is considerably higher than up to the present published values of this quantity.
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