QUT ePrints

Thermal decomposition of peisleyite: a thermogravimetry and hot stage Raman spectroscopic study

Frost, Ray L., Mills, Stuart J., & Erickson, Kristy L. (2004) Thermal decomposition of peisleyite: a thermogravimetry and hot stage Raman spectroscopic study. Thermochimica Acta, 419(1-2), pp. 109-114.

View at publisher

Abstract

High resolution thermogravimetric analysis coupled with a gas evolution mass spectrometer was used to study the decomposition of peisleyite Na3 Al16(SO4)(PO4)10(OH)17•20H2O. Peisleyite, a hydrated hydroxylated multianion mineral, shows thermal decomposition in 5 stages, indicative of a loss of water, hydroxyl units and sulphate. Thermal analysis shows the loss of water and hydroxyl units occurs in 3 distinct stages; at 36 degrees Celsius, 105 degrees Celsius and 162 degrees Celsius. The high resolution thermogravimetry was complimented with hot stage Raman spectroscopy, which follows the dehydration of peisleyite. This dehydration can be followed by the decrease in intensity of the OH stretching vibrations which occur between 4000 and 2500cm-1 and by the shift in the sulphate and phosphate peaks which occur due to changes in the mineral structure.

Impact and interest:

11 citations in Scopus
Search Google Scholar™
10 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

364 since deposited on 14 Mar 2005
20 in the past twelve months

Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 820
Item Type: Journal Article
Additional Information: Note: Co-author Stuart Mills is affiliated with Geosciences, Museum Victoria & CSIRO
Keywords: peisleyite, sulphate, phosphate, high resolution thermogravimetric analysis, hot stage Raman spectroscopy, Tom’s phosphate quarry
DOI: 10.1016/j.tca.2004.02.002
ISSN: 0040-6031
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 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 14 Mar 2005
Last Modified: 29 Feb 2012 23:04

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page