The Solubility of Amorphous and Crystalline Schoepite in Neutral to Alkaline Aqueous Solutions-Reference-Cited by-同舟云学术

The Solubility of Amorphous and Crystalline Schoepite in Neutral to Alkaline Aqueous Solutions

Published:1988 Issue: Volume:127 Page:
ISSN:0272-9172
Container-title:MRS Proceedings
language:en
Short-container-title:MRS Proc.

Author:

Bruno Jordi,Sandino Amaia

Abstract

ABSTRACTThe solubility of schoepite, UO2(OH)2 H2O, has been investigated by potentiometric titration at 25 °C in 0.5 mol dm.−3 NaClO4 solution. The data indicates the predominance of the species (UO2)3(OH)5+ and either UO2(OH)3− or (UO2)3(OH)7− in the pH range studied. The formation constants of these species as well as the solubility product of the amorphous and microcrystalline schoepite have been determined. The consequences of these data on the hypothesis of schoepite as the solubility limiting phase in spent fuel dissolution studies is discussed.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

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4. 26. Tasker I. R. , O'Hare P. A. G. , Lewis B.M. , Johnson G.K. , and Cordfunke E.H.P. , LLNL Report No. UCRL-21055, 1987.

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