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Pulse-radiolysis studies of americium ions in aqueous perchlorate media

Journal Article · · Inorg. Chem.; (United States)
DOI:https://doi.org/10.1021/ic50180a021· OSTI ID:5149050
The streak-camera technique was used to characterize the transient absorption spectra of Am(II) and Am(IV) in perchlorate media: lambda/sub max/(Am(II)) 312 nm, lambda/sub max/(Am(IV)) 320 to 340 nm. Second-order rate constants (M/sup -1/ s/sup -1/) were measured for the following reactions: Am(III) + e/sup -//sub aq/, (1.55 +- 0.04) x 10/sup 8/; Am(III) + OH, (4.1 +- 0.4) x 10/sup 8/; Am(IV) + Am(IV), (5 +- 1) x 10/sup 6/; Am(V) + e/sup -//sub aq/, (3.18 +- 0.08) x 10/sup 10/, pH 6.0; Am(VI) + e/sup -//sub aq/, (3.9 +- 0.9) x 10/sup 10/, pH 6.0.
Research Organization:
Argonne National Lab., IL
OSTI ID:
5149050
Journal Information:
Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 17:2; ISSN INOCA
Country of Publication:
United States
Language:
English