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Experimental Speciation of Plutonium(IV) in Natural Seawater
Author(s) -
Dumas Thomas,
Guigue Mireille,
Moisy Philippe,
ColinaRuiz Roberto,
Mustre de Leon Jose,
MataraAho Minja,
Solari Pier Lorenzo,
Monfort Marguerite,
Moulin Christophe,
Beccia Maria Rosa,
Auwer Christophe Den
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702762
Subject(s) - seawater , plutonium , genetic algorithm , colloid , hydroxide , valence (chemistry) , chemistry , bioavailability , environmental chemistry , inorganic chemistry , nuclear chemistry , geology , oceanography , biology , ecology , bioinformatics , organic chemistry
Solubility, migration, and bioavailability of plutonium is lacunar because experimental evidences are missing. We report here on X‐ray Absorption Spectroscopy of plutonium in natural seawater. The observed valence state is +IV and its speciation corresponds to PuO 2 type colloids. Furthermore, aging of the solution shows a gradient of ordering from hydroxide colloidal species to more crystalline PuO 2 colloids.