The surface tension and density of molten KF NaF AlF3-based electrolytes were determined as a function of the melting composition and temperature by the Archimedean method and maximum bubble-pressure method, respectively. The investigated temperatures range from (1013 to 1103) K, and the total cryolite molar ratio (CRt = ([KF] + [NaF])/[AlF3]) is 1.3 to 1.41; the mole fraction of NaF ranges from 0.15 to 0.4. The effects of temperature and the content of CaF2 and Al2O3 on surface tension and density were also investigated. The results indicate that the density and the surface tension tend to increase with the NaF content and CRt. The density and the surface tension fit the linear relationship with temperature.
Compounds
#
Formula
Name
1
FK
potassium fluoride
2
FNa
sodium fluoride
3
AlF3
aluminum fluoride
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
2
3
1
Surface tension liquid-gas, N/m ; Liquid
Mass fraction - 2; Liquid
Mass fraction - 1; Liquid
Temperature, K; Liquid
Liquid
Air at 1 atmosphere
Maximum bubble pressure
14
POMD
2
3
1
Mass density, kg/m3 ; Liquid
Temperature, K; Liquid
Mass fraction - 2; Liquid
Mass fraction - 1; Liquid
Pressure, kPa; Liquid
Liquid
Buoyancy - hydrostatic balance with magnetic suspension - one sinker