Title: Thermodynamic Properties of CaTh(PO4)2 Synthetic Cheralite
Authors: MAZEINA L.COLINEAU EricWASTIN FranckKONINGS RudyNAVROTSKY A.POPA K.
Citation: AMERICAN MINERALOGIST vol. 93 no. 8-9 p. 1356-1362
Publisher: MINERALOGICAL SOC AMER
Publication Year: 2008
JRC N°: JRC50365
ISSN: 0003-004X
URI: http://ammin.geoscienceworld.org/cgi/content/citation/93/8-9/1356/F3
http://publications.jrc.ec.europa.eu/repository/handle/JRC50365
DOI: 10.2138/am.2008.2794
Type: Articles in Journals
Abstract: The mineral cheralite [CaTh(PO4)2] allows for the incorporation of tetravalent actinides in monazite-based crystalline phases. Experimental determination of its thermodynamic properties is crucial for defining its stability and subsequent long-term ability to immobilize radionuclides. Low-temperature heat capacity from 0.5 to 300 K, enthalpy increments from 485 to 1565 K, and the enthalpy of formation of cheralite from the oxides were measured and reported on for the first time.
JRC Institute:Institute for Transuranium Elements

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