Raman spectroscopy of synthetic CaHPO4•2H2O– and in comparison with the cave mineral brushite

Frost, Ray L., Xi, Yunfei, Pogson, Ross E., Millar, Graeme J., Tan, Keqin, & Palmer, Sara J. (2012) Raman spectroscopy of synthetic CaHPO4•2H2O– and in comparison with the cave mineral brushite. Journal of Raman Spectroscopy, 43(4), pp. 571-576.

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The mineral brushite has been synthesised by mixing calcium ions and hydrogen phosphate anions to mimic the reactions in a Cave. The vibrational spectra of the synthesised brushite were compared with that of the natural Cave mineral. Bands attributable to the PO43- and HPO42- anions are observed. Brushite, both synthetic and natural, is characterised by an intense sharp band at 985 cm-1 with a shoulder at 1000 cm-1. Characteristic bending modes are observed in the 300 to 600 cm-1 region. The spectra of the synthesised brushite matches very well the spectrum of brushite from the Moorba Cave, Western Australia.

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ID Code: 49789
Item Type: Journal Article
Refereed: Yes
Keywords: brushite, monetite, phosphate, Raman spectroscopy, infrared spectroscopy
DOI: 10.1002/jrs.3063
ISSN: 0377-0486
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright © 2011 John Wiley & Sons, Ltd.
Deposited On: 19 Apr 2012 22:53
Last Modified: 06 May 2014 21:27

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