Hydrolysis of Hydroxamic Acid Complexants in the Presence of Non-Oxidizing Metal Ions

Boxall, Colin and Andrieux, Fabrice and Edwards, Scott and Taylor, Robin J. and Woodhead, Dave (2012) Hydrolysis of Hydroxamic Acid Complexants in the Presence of Non-Oxidizing Metal Ions. MRS Online Proceedings Library, 1383. ISSN 0272-9172

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Abstract

Simple Hydroxamic acids (XHAs) are salt free, organic compounds with affinities for hard cations such as Fe3+, Np4+, Pu4+ and have been identified as suitable reagents for the control of Pu and Np in advanced nuclear fuel reprocessing. Building upon previous work on the neptunium(IV)-formohydroxamic(FHA) acid system [1], a model that describes the hydrolysis of the acetohydroxamate moiety has been extended to include hydrolysis of bishydroxamatoneptunium(IV) complex. The model has been used to determine the rate constants for hydrolysis of mono- and bis-acetohydroxamatoneptunium(IV) at 25 °C, which were found to be 1.0×10-5 dm3 mol-1 s-1 and 5.0×10-5 dm3 mol-1 s-1, respectively.

Item Type:
Journal Article
Journal or Publication Title:
MRS Online Proceedings Library
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
ID Code:
52726
Deposited By:
Deposited On:
23 Feb 2012 14:27
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2020 03:20