A fifth OH-stretching band in IR spectra of kaolinites

S. Shoval, S. Yariv, K. H. Michaelian, I. Lapides, M. Boudeuille, G. Panczer

Research output: Contribution to journalArticlepeer-review


Transmission infrared spectra of different kaolinites were studied by curve fitting. These spectra generally exhibit four hydroxyl stretching bands. In this article we show that a fifth OH band (already identified in Raman and photoacoustic IR spectra of kaolinites) is also observed in transmission IR spectra of hydrothermal and authigenic kaolinites, which have a high degree of crystallinity. This additional band is weak or undetectable for kaolinites with a low degree of crystallinity.

Original languageEnglish
Pages (from-to)523-529
Number of pages7
JournalJournal of Colloid and Interface Science
Issue number2
StatePublished - 15 Apr 1999


  • Band Z
  • Hydroxyl-stretching bands
  • Infrared spectra
  • Kaolinite
  • Raman spectra


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