Research Article

Raman spectroscopic study of the sulfite-bearing minerals scotlandite, hannebachite and orschallite: implications for the desulfation of soils

  1. Ray L. Frost*,
  2. Eloise C. Keeffe

Article first published online: 11 NOV 2008

DOI: 10.1002/jrs.2089

Issue

Journal of Raman Spectroscopy

Journal of Raman Spectroscopy

Volume 40, Issue 3, pages 244–248, March 2009

Additional Information

How to Cite

Frost, R. L. and Keeffe, E. C. (2009), Raman spectroscopic study of the sulfite-bearing minerals scotlandite, hannebachite and orschallite: implications for the desulfation of soils. Journal of Raman Spectroscopy, 40: 244–248. doi: 10.1002/jrs.2089

Author Information

  1. Inorganic Materials Research Program, School of Physical and Chemical Sciences, Queensland University of Technology, Brisbane Queensland, Australia

*Inorganic Materials Research Program, School of Physical and Chemical Sciences, Queensland University of Technology, Brisbane Queensland 4001, Australia.

Publication History

  1. Issue published online: 6 MAR 2009
  2. Article first published online: 11 NOV 2008
  3. Manuscript Accepted: 14 JUL 2008
  4. Manuscript Received: 5 MAY 2008

Funded by

  • Australian Research Council (ARC)

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Keywords:

  • sulfite;
  • scotlandite;
  • hannebachite;
  • Raman spectroscopy;
  • gravegliaite;
  • orschallite

Graphical Abstract

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The structures of the naturally occurring sulfite-bearing minerals scotlandite, hannebachite and orschallite has been studied by Raman spectroscopy. Raman bands are observed for scotlandite PbSO3 at 935, 880, 622 and 474 cm−1 and are assigned to the (SO3)2−ν1(A1), ν3(E), ν2(A1) and ν4(E) vibrational modes.

Abstract

The structures of the naturally occurring sulfite-bearing minerals scotlandite, hannebachite and orschallite have been studied by Raman spectroscopy. Raman bands are observed for scotlandite PbSO3 at 935, 880, 622 and 474 cm−1 and are assigned to the (SO3)2−ν1(A1), ν3(E), ν2(A1) and ν4(E) vibrational modes, respectively. For hannebachite (CaSO3)2·H2O these bands are observed at 1005, 969 and 655 cm−1 with multiple bands for the ν4(E) mode at 444, 492 and 520 cm−1. The Raman spectrum of hannebachite is very different from that of the compound CaSO3·2H2O. It is proposed, on the basis of Raman spectroscopy, that in the mineral hannebachite, the sulfite anion bonds to Ca through the sulfur atom. The Raman spectrum of the mineral orschallite Ca3[SO4](SO3)2·12H2O is complex resulting from the overlap of sulfate and sulfite bands. Raman bands at 1005 cm−1, 1096 and 1215 cm−1 are assigned to the (SO4)2−ν1 symmetric and ν3 asymmetric stretching modes. The two Raman bands at 971 and 984 cm−1 are attributed to the (SO3)2−ν3(E) and ν1(A1) stretching vibrations. The formation of sulfite compounds in nature offers a potential mechanism for the removal of sulfates and sulfites from soils. Copyright © 2008 John Wiley & Sons, Ltd.

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