Fusion properties and heat capacities of the eutectic LiF-NaF-KF melt

Journal Article · Thu Jul 01 04:00:00 EDT 1982 · J. Chem. Eng. Data; (United States)

DOI:https://doi.org/10.1021/je00029a041· OSTI ID:5961283

Rogers, D J; Janz, G J; Yoko, T

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), Journal Name: J. Chem. Eng. Data; (United States) Vol. 27:3; ISSN JCEAA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
CALORIMETRY
CRYSTALS
ENTHALPY
ENTROPY
EUTECTICS
FLUORIDES
FLUORINE COMPOUNDS
FUSION HEAT
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MELTING POINTS
PHYSICAL PROPERTIES
POLYCRYSTALS
POTASSIUM COMPOUNDS
POTASSIUM FLUORIDES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
TRANSITION TEMPERATURE