Easily oxidizable polysulfide anion occluded in the interlayer space of Mg/Al layered double hydroxide

Makoto Ogawa, Fumihiro Saito

Research output: Contribution to journalArticle

17 Citations (Scopus)


Magnesium-aluminum layered double hydroxide containing polysulfide anions was prepared by a hydrothermal reaction from magnesium and aluminum hydroxides. Thioacetamide was used as the sulfide source. The product exhibits light green color corresponding to the S2 - and S3 - ions and turns to colorless when the sample was stored in air for several days or heat treated in air at 120°C. The color change showed that the occluded polysulfide anions were oxidized to sulfate anion by atmospheric oxygen.

Original languageEnglish
Pages (from-to)1030-1031
Number of pages2
JournalChemistry Letters
Issue number8
Publication statusPublished - 2004 Aug 5


ASJC Scopus subject areas

  • Chemistry(all)

Cite this