{"title":"High-Entropy Melt of Lithium, Sodium, and Potassium Fluorides and Chlorides as a Possible Coolant for Molten-Salt Reactors","authors":"D. O. Zakiryanov, N. K. Tkachev","doi":"10.1134/S1066362224060031","DOIUrl":null,"url":null,"abstract":"<p>Suggestions are made for potentially promising coolants for molten salt reactors from a mixture of six lithium, sodium, and potassium fluoride and chloride salts having high entropy of mixing. These compositions, which contain less lithium salts, should have higher thermodynamic stability than FLiNaK or FLiBe because of their high entropy. The chemical formula of the maximum high-entropy solution, Li<sub>1/6</sub>Na<sub>1/6</sub>K<sub>1/6</sub>F<sub>1/4</sub>Cl<sub>1/4</sub>, may result from mixing the variety of alkali halides like MX (M = Li, Na, K and X = F, Cl) taken in an equimolar ratio. Molecular dynamic estimations of the density, heat conductivity, and viscosity demonstrate reasonable values of these properties between those of the fluorides and chlorides.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 6","pages":"805 - 809"},"PeriodicalIF":0.9000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1066362224060031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
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Abstract
Suggestions are made for potentially promising coolants for molten salt reactors from a mixture of six lithium, sodium, and potassium fluoride and chloride salts having high entropy of mixing. These compositions, which contain less lithium salts, should have higher thermodynamic stability than FLiNaK or FLiBe because of their high entropy. The chemical formula of the maximum high-entropy solution, Li1/6Na1/6K1/6F1/4Cl1/4, may result from mixing the variety of alkali halides like MX (M = Li, Na, K and X = F, Cl) taken in an equimolar ratio. Molecular dynamic estimations of the density, heat conductivity, and viscosity demonstrate reasonable values of these properties between those of the fluorides and chlorides.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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