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Synthesis and Ultrapurification of Tin Diiodide

Authors
  • Brekhovskikh, M. N.1
  • Mastryukov, M. V.1
  • Kornev, P. V.2
  • Gasanov, A. A.2
  • Kovalenko, A. E.3
  • Fedorov, V. A.1
  • 1 Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia , Moscow (Russia)
  • 2 State Research and Design Institute for the Rare-Metals Industry, Elektrodnaya ul. 2, Moscow, 111524, Russia , Moscow (Russia)
  • 3 Specialty Chemistry Research Center, Krasnobogatyrskaya ul. 42, Moscow, 107564, Russia , Moscow (Russia)
Type
Published Article
Journal
Inorganic Materials
Publisher
Pleiades Publishing
Publication Date
Sep 16, 2019
Volume
55
Issue
9
Pages
974–978
Identifiers
DOI: 10.1134/S0020168519090012
Source
Springer Nature
Keywords
License
Yellow

Abstract

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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