Thermal decomposition of agardites (REE) –relationship between dehydroxylation temperature and electronegativity
Frost, Ray L., Erickson, Kristy L., Weier, Matt L., McKinnon, Adam R., Williams, Peter A., & Leverett, Peter (2005) Thermal decomposition of agardites (REE) –relationship between dehydroxylation temperature and electronegativity. Thermochimica Acta, 427(1-2), pp. 167-170.
The thermal decomposition of a suite of synthetic agardites of formula ACu6(AsO4)2(OH)6.3H2O where A is given by a rare earth element has been studied using thermogravimetric analysis techniques. Dehydration of the agardites occurs at low temperatures and over an extended temperature range from ambient to around 60 degrees Celsius. This loss of water is attributed to the loss of zeolitic water. The mass loss of water indicates 3 moles of zeolitic water in the structure. Dehydroxylation occurs in steps over a wide range of temperatures from 235 to 456 degrees Celsius. The mass loss during dehydroxylation shows the number of moles of hydroxyl units is six. There is a linear relationship between the first dehydroxylation temperature and the electronegativity of the REE.
Impact and interest:
Citation counts are sourced monthly from and 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 theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads displays 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.
|Item Type:||Journal Article|
|Keywords:||agardite, goudeyite, mixite, petersite, thermal analysis, mass spectrometry, electronegativity|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2005 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||14 Feb 2006 00:00|
|Last Modified:||29 Feb 2012 13:15|
Repository Staff Only: item control page