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Samarium Oxide at High Temperatures: Sublimation and Thermodynamics

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Abstract

Vaporization processes and thermodynamic properties of samarium oxide over the temperature range 2265–2668 K have been studied by means of high-temperature mass spectrometry. The values of vaporization enthalpy of Sm2O3 and enthalpy of formation of samarium monoxide at 298 K have been determined. Dependencies of partial pressures of SmO and Sm over Sm2O3 as functions of temperature have been obtained over the above-mentioned range.

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Funding

This study was financially supported by the Russian Foundation for Basic Research (project no. 19-03-00721). Authors are grateful to F.N. Karachentsev for identification of the Sm2O3 sample.

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Authors and Affiliations

  1. St. Petersburg State University, 190034, St. Petersburg, Russia

    V. L. Stolyarova, V. A. Vorozhtcov, S. I. Lopatin & S. M. Shugurov

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  1. V. L. Stolyarova
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  2. V. A. Vorozhtcov
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  3. S. I. Lopatin
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  4. S. M. Shugurov
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Correspondence to V. L. Stolyarova.

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Stolyarova, V.L., Vorozhtcov, V.A., Lopatin, S.I. et al. Samarium Oxide at High Temperatures: Sublimation and Thermodynamics. Russ J Gen Chem 90, 874–876 (2020). https://doi.org/10.1134/S1070363220050199

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  • DOI: https://doi.org/10.1134/S1070363220050199

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