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Filtering by: Creator Vian, Alex M. Academic Affiliation Chemistry

Aqueous complexation of citric acid and DTPA with selected trivalent and tetravalent f-elements

Creator:

Brown, M. Alex

Abstract:

Carboxylic acids have played an important role in the field of actinide (An) and lanthanide (Ln) separations and the reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3-hydroxypentanedioic acid (citric acid) is a promising aqueous complexant that can effectively aid in the separation of transition metals from...

Resource Type:

Dissertation

Full Text:

ABSTRACT OF THE DISSERTATION OF M. Alex Brown for the degree of Doctor of Philosophy in Chemistry
Aqueous Complexation of Thorium(IV), Uranium(IV), Neptunium(IV), Plutonium(III/IV), and Cerium(III/IV) with DTPA

Creator:

Brown, M. Alex, Paulenova, Alena, and Gelis, Artem V.

Abstract:

Aqueous complexation of Th(IV), U(IV), Np(IV), Pu(III/IV), and Ce(III/IV) with DTPA was studied by potentiometry, absorption spectrophotometry, and cyclic voltammetry at 1 M ionic strength and 25 °C. The stability constants for the 1:1 complex of each trivalent and tetravalent metal were calculated. From the potentiometric data, we report stability...

Resource Type:

Article

Full Text:

), Neptunium(IV), Plutonium(III/IV), and Cerium(III/IV) with DTPA M. Alex Brown,† Alena Paulenova,‡ and Artem V