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An Investigation of Evaporation of Lithium

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Abstract

The Knudsen effusion method with mass-spectrometric analysis of evaporation products is used to determine the composition and pressure of saturated vapor over liquid lithium in the temperature range from 627 to 893 K. The Li(l) = Li(g), 2Li(l) = Li2(g), and Li2(g) = 2Li(g) reactions are investigated. The measured values of partial pressure for Li and Li2are used to calculate the values of enthalpy for these reactions at 0 K by the second, Δ r H 0 0(II), and third, Δ r H 0 0(III), laws of thermodynamics: Δ r H 0 0(II) = 157.9 ± 0.5, 214.2 ± 0.6, and 101.4 ± 1.1 kJ/mol, and Δ r H 0 0(III) = 157.5 ± 0.3, 213.9 ± 0.3, and 101.1 ± 0.6 kJ/mol, respectively.

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Authors and Affiliations

  1. Bardin Central Research Institute of Ferrous Metallurgy, Moscow, 107005, Russia

    A. I. Zaitsev, A. D. Litvina, B. M. Mogutnov & N. E. Shelkova

  2. All-Russia Institute of Aviation Materials, Moscow, 107005, Russia

    I. N. Fridlyander

Authors
  1. A. I. Zaitsev
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  2. A. D. Litvina
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  3. B. M. Mogutnov
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  4. I. N. Fridlyander
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  5. N. E. Shelkova
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Zaitsev, A.I., Litvina, A.D., Mogutnov, B.M. et al. An Investigation of Evaporation of Lithium. High Temperature 39, 507–510 (2001). https://doi.org/10.1023/A:1017975904782

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