Thermal treatment of moolooite

Frost, Ray L., Erickson, Kristy L., & Weier, Matt L. (2004) Thermal treatment of moolooite. Journal of Thermal Analysis and Calorimetry, 77(3), pp. 851-861.

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Evidence for the existence of primitive life forms such as lichens and fungi can be based upon the formation of oxalates. These oxalates form as a film like deposit on rocks and other host matrices. Moolooite as the natural copper (II) oxalate mineral is a classic example. High resolution thermogravimetry coupled to evolved gas mass spectrometry shows decomposition takes place at 260 degrees Celsius. Evolved gas mass spectrometry shows the gas lost at this temperature is carbon dioxide. No water evolution was observed, thus indicating the moolooite is the anhydrous copper (II)oxalate as compared to the synthetic compound which is the dihydrate. The high resolution thermogravimetry was complimented with hot stage Raman spectroscopy. The temperature at which no intensity remains in the bands assigned to the oxalate vibrations is the upper limit of the stability of the moolooite.

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25 citations in Scopus
24 citations in Web of Science®
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ID Code: 822
Item Type: Journal Article
Refereed: Yes
Keywords: oxalate, moolooite, copper(II) oxalate, Raman spectroscopy, high resolution thermogravimetry, evolved gas mass spectrometry
DOI: 10.1023/B:JTAN.0000041664.69521.0b
ISSN: 1572-8943
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2004 Springer
Copyright Statement: The original publication is available at SpringerLink.
Deposited On: 11 Mar 2005 00:00
Last Modified: 29 Feb 2012 13:08

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