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Synthesis and Ultrapurification of Tin Diiodide

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Abstract—

This paper presents results of a study aimed at developing physicochemical principles of tin diiodide (SnI2) synthesis and ultrapurification by high-temperature fractional distillation. SnI2 samples were synthesized by different processes: in solution, from elemental mixtures at atmospheric pressure, and in a vacuum. Next, the samples were purified by fractional distillation in a plate column. Separation factors of difficult-to-remove impurities in the SnI2-based liquid–vapor system have been determined experimentally. We have prepared and characterized extrapure-grade SnI2 containing 10 ppm by weight of trace impurities

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ACKNOWLEDGMENTS

In this study, we used equipment at the Shared Physical Characterization Facilities Center, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.

Funding

This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, basic research).

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Correspondence to M. N. Brekhovskikh.

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Brekhovskikh, M.N., Mastryukov, M.V., Kornev, P.V. et al. Synthesis and Ultrapurification of Tin Diiodide. Inorg Mater 55, 974–978 (2019). https://doi.org/10.1134/S0020168519090012

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  • DOI: https://doi.org/10.1134/S0020168519090012

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