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Density and surface tension of mixtures of molten fluorides of lithium, beryllium, thorium, and uranium

Journal Article · · Sov. At. Energy (Engl. Transl.); (United States)
OSTI ID:5355113
The authors studied the density rho and the surface tension rho of the four-component LiF-BeF/sub 2/-ThF/sub 4/-UF/sub 4/ system in a wide temperature range. The concentration range of the molten salts corresponds to salt compositions with a low melting point and a rather high concentration of fissile materials. In the three-component LiF-BeF/sub 2/-ThF/sub 4/ system, compositions in the following concentration range were selected (expressed as molar fraction, %): ThF/sub 4/ ( less than or equal to 20) and BeF/sub 2/ (less than or equal to 40). Uranium tetrafluoride was added up to a maximum concentration of 40% to the melts. The results of the rho and sigma measurements were evaluated with the least-square method. The temperature dependencies of the properties studied in the 32 compositions examined are quite adequately described by linear equations.
OSTI ID:
5355113
Journal Information:
Sov. At. Energy (Engl. Transl.); (United States), Journal Name: Sov. At. Energy (Engl. Transl.); (United States) Vol. 61:6; ISSN SATEA
Country of Publication:
United States
Language:
English