The areas of the fusion and crystallization peaks of K3TaF8 and K3TaOF6 have been measured using the DSC mode of the high-temperature calorimeter (SETARAM 1800 K). On the basis of these quantities and the temperature dependence of the used calorimetric method sensitivity, the values of the enthalpy of fusion of K3TaF8 at temperature of fusion 1039 K: fusHm(K3TaF8; 1039 K) = (52+-2) kJ mol-1 and of K3TaOF6 at temperature of fusion 1055 K: fusHm(K3TaOF6; 1055 K) = (62+-3) kJ mol-1 have been determined.
Compounds
#
Formula
Name
1
F8K3Ta
tripotasium octafluorotantalate
2
F6K3OTa
potassium hexafluorooxotantalate(3-)
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
1
Molar enthalpy of transition or fusion, kJ/mol ; Crystal
Crystal
Liquid
Air at 1 atmosphere
DSC
1
POMD
1
Normal melting temperature, K ; Crystal
Crystal
Liquid
Air at 1 atmosphere
DTA:corrimp
1
POMD
2
Molar enthalpy of transition or fusion, kJ/mol ; Crystal