Long-Term Experimental Determination of Solubilities of Micro-Crystalline Nd(III) Hydroxide in High Ionic Strength Solutions: Applications to Nuclear Waste Management [A Pitzer Model for Am(III)/Nd(III) hydroxide solubility in NaCl-H2O at 298.15 K to high ionic strengths: Experimental validation and model applications]

Xiong, Yongliang; Kirkes, Leslie Dawn; Marrs, Cassandra

doi:10.1007/s10498-017-9326-6

Long-Term Experimental Determination of Solubilities of Micro-Crystalline Nd(III) Hydroxide in High Ionic Strength Solutions: Applications to Nuclear Waste Management [A Pitzer Model for Am(III)/Nd(III) hydroxide solubility in NaCl-H₂O at 298.15 K to high ionic strengths: Experimental validation and model applications]

Journal Article · Thu Nov 30 23:00:00 EST 2017 · Aquatic Geochemistry

DOI:https://doi.org/10.1007/s10498-017-9326-6· OSTI ID:1324611

Xiong, Yongliang ^[1]; Kirkes, Leslie Dawn ^[1]; Marrs, Cassandra ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Carlsbad Programs Group

In this paper, the experimental results from long-term solubility experiments on micro crystalline neodymium hydroxide, Nd(OH)₃(micro cr), in high ionic strength solutions at 298.15 K under well-constrained conditions are presented. The starting material was synthesized according to a well-established method in the literature. In contrast with the previous studies in which hydrogen ion concentrations in experiments were adjusted with addition of either an acid or a base, the hydrogen ion concentrations in our experiments are controlled by the dissolution of Nd(OH)₃(micro cr), avoiding the possibility of phase change.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1324611

Report Number(s):: SAND2016-5527J; 641757

Journal Information:: Aquatic Geochemistry, Journal Name: Aquatic Geochemistry Journal Issue: 5-6 Vol. 23; ISSN 1380-6165

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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