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Solubility of potassium, rubidium, and cesium in liquid lithium at high temperatures

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Thermophysics and Aeromechanics Aims and scope

Abstract

The solubility of heavy alkali metals in liquid lithium was investigated at temperatures from the melting point of Li to ∼1200 K by the method of gamma-raying of liquid samples by a narrow beam of gamma radiation. Even at high temperatures, the solubility of K, Rb, and Cs in liquid lithium has been found to be very insignificant. The potassium content in the lithium-rich phase is 0.2 at. % at 850 K and 3.4 at. % at 1212 K. The solubility of rubidium in liquid lithium, within the measurement error, is zero at temperatures from 453 K (melting point of Li) to 800 K and reaches only 0.5 at. % at 1172 K. Cesium is practically insoluble in liquid lithium up to a temperature of 1150 K.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia

    R. A. Khairulin, R. N. Abdullaev & S. V. Stankus

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  1. R. A. Khairulin
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  2. R. N. Abdullaev
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  3. S. V. Stankus
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Correspondence to R. A. Khairulin.

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This work was supported by the Russian Foundation for Basic Research (Grant No. 18-08-00389).

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Khairulin, R.A., Abdullaev, R.N. & Stankus, S.V. Solubility of potassium, rubidium, and cesium in liquid lithium at high temperatures. Thermophys. Aeromech. 28, 147–151 (2021). https://doi.org/10.1134/S0869864321010145

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  • DOI: https://doi.org/10.1134/S0869864321010145

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