Fusion properties and heat capacities of the eutectic LiF-NaF-KF melt
The fusion properties (melting point, enthalpy and entropy of fusion) of the eutectic LiF-NaF-KF and the heat capacity of this system in the polycrystalline state and in the molten state have been investigated by the technique of high-temperature differential scanning calorimetry. The fusion properties and heat capacities may be summarized as follows: mp 462 + or - 2/sup 0/C; ..delta..H /SUB fus/ = 3.98 kcal mol/sup -1/; ..delta..S /SUB fus/ = 5.42 eu; C /SUB p/ (solid) = 12.8218 - (9.651 X 10/sup -3/)T + (1.513 X 10/sup -5/)T/sup 2/ and C /SUB p/ (melt) = 9.6360 + (10.487 X 10/sup -3/)T, both in cal mol/sup -1/K/sup -1/, respectively. The heat capacity temperature ranges are 57-450/sup 0/C (solid) and 475-590/sup 0/C (melt), and the accuracy limits for both the enthalpy and the heat capacities are + or -2.0%. For conversion to SI units, 1 cal = 4.184 J.
- Research Organization:
- Molten Salts Data Center, Cogswell Laboratory, Rensselaer Polytechnic Institute, Troy, New York 12181
- OSTI ID:
- 5961283
- Journal Information:
- J. Chem. Eng. Data; (United States), Vol. 27:3
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LITHIUM FLUORIDES
EUTECTICS
SPECIFIC HEAT
POTASSIUM FLUORIDES
SODIUM FLUORIDES
CALORIMETRY
ENTROPY
FUSION HEAT
HIGH TEMPERATURE
MELTING POINTS
POLYCRYSTALS
ALKALI METAL COMPOUNDS
CRYSTALS
ENTHALPY
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
TRANSITION TEMPERATURE
360603* - Materials- Properties
400201 - Chemical & Physicochemical Properties