Reactions of iodate with iodine in concentrated sulfuric acid. Formation of I(+3) and I(+1) compounds

Guy Schmitz, Zoltan Noszticzius, Gabor Hollo, Maria Wittmann, Stanley D. Furrow

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The absorption spectra in a large range of concentrations show that the reactions of iodate with iodine in 96% sulfuric acid produce (IO)HSO4, I3+ and I5+, just like in the pure 100% acid. We discovered that, in 96% H2SO4, these reactions also produce I2O which is not formed in the pure acid. I2O is an important intermediate of reactions in diluted sulfuric acid, including the Bray-Liebhafsky reaction, but it had never been observed directly because of its very high reactivity. The equilibrium constants of the reactions producing these four compounds were determined.

Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalChemical Physics Letters
Volume691
DOIs
Publication statusPublished - Jan 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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