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Title: Enthalpies of formation of rare earths and actinide(III) hydroxides: Their acid-base relationships and estimation of their thermodynamic properties

Abstract

This paper reviews the literature on rare earth(III) and actinide(III) hydroxide thermodynamics, in particular the determination of their enthalpies of formation at 25{degree}C. The hydroxide unit-cell volumes, lanthanide/actinide ion sizes, and solid-solution stability trends have been correlated with a generalized acid-base strength model for oxides to estimate properties for heterogeneous equilibria that are relevant to nuclear waste modeling and to characterization of potential actinide environmental interactions. Enthalpies of formation and solubility-product constants of actinide(III) hydroxides are estimated.

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10111965
Report Number(s):
ANL/CP-74763; CONF-911109-7
ON: DE92005235
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Fall meeting of the European Materials Research Society (EMRS),Strasbourg (France),5-8 Nov 1991; Other Information: PBD: [1991]
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 36 MATERIALS SCIENCE; HYDROXIDES; THERMODYNAMIC PROPERTIES; PH VALUE; REVIEWS; TRANSITION ELEMENT COMPOUNDS; ACTINIDE COMPOUNDS; FORMATION HEAT; SOLUBILITY; TRIGONAL LATTICES; 400201; 400702; 360204; CHEMICAL AND PHYSICOCHEMICAL PROPERTIES; PROPERTIES OF RADIOACTIVE MATERIALS; PHYSICAL PROPERTIES

Citation Formats

Morss, L R, and Williams, C W. Enthalpies of formation of rare earths and actinide(III) hydroxides: Their acid-base relationships and estimation of their thermodynamic properties. United States: N. p., 1991. Web.
Morss, L R, & Williams, C W. Enthalpies of formation of rare earths and actinide(III) hydroxides: Their acid-base relationships and estimation of their thermodynamic properties. United States.
Morss, L R, and Williams, C W. 1991. "Enthalpies of formation of rare earths and actinide(III) hydroxides: Their acid-base relationships and estimation of their thermodynamic properties". United States. https://www.osti.gov/servlets/purl/10111965.
@article{osti_10111965,
title = {Enthalpies of formation of rare earths and actinide(III) hydroxides: Their acid-base relationships and estimation of their thermodynamic properties},
author = {Morss, L R and Williams, C W},
abstractNote = {This paper reviews the literature on rare earth(III) and actinide(III) hydroxide thermodynamics, in particular the determination of their enthalpies of formation at 25{degree}C. The hydroxide unit-cell volumes, lanthanide/actinide ion sizes, and solid-solution stability trends have been correlated with a generalized acid-base strength model for oxides to estimate properties for heterogeneous equilibria that are relevant to nuclear waste modeling and to characterization of potential actinide environmental interactions. Enthalpies of formation and solubility-product constants of actinide(III) hydroxides are estimated.},
doi = {},
url = {https://www.osti.gov/biblio/10111965}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1991},
month = {Tue Dec 31 00:00:00 EST 1991}
}

Conference:
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