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Title: 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 · · Aquatic Geochemistry
 [1];  [1];  [1]
  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.

Research Organization:
Sandia National Lab. (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, Vol. 23, Issue 5-6; ISSN 1380-6165
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

References (23)

Interaction of Nd( iii ) and Cm( iii ) with borate in dilute to concentrated alkaline NaCl, MgCl 2 and CaCl 2 solutions: solubility and TRLFS studies journal January 2015
Thermodynamics of trivalent actinides and neodymium in NaCl, MgCl2, and CaCl2 solutions: Solubility, hydrolysis, and ternary Ca-M(III)-OH complexes journal August 2009
An Aqueous Thermodynamic Model for the Solubility of Potassium Ferrate in Alkaline Solutions to High Ionic Strengths from 283.15 to 333.15 K journal July 2013
The aqueous geochemistry of Zr and the solubility of some Zr-bearing minerals journal November 1995
Solubilities and Speciation of Selected Transuranium Ions. A Comparison of a Non-Complexing Solution with a Groundwater from the Nevada Tuff Site journal January 1985
New modification procedure of zinc powder in neodymium nitrate solution for improving the electrochemical properties of alkaline zinc electrodes journal January 2009
Actinide speciation in the environment journal June 2007
Experimental determination of solubilities of sodium tetraborate (borax) in NaCl solutions, and a thermodynamic model for the Na-B(OH)3-Cl-SO4 system to high-ionic strengths at 25  C journal November 2013
A thermodynamic model for silica and aluminum in alkaline solutions with high ionic strength at elevated temperatures up to 100  C: Applications to zeolites journal December 2012
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Effects of lanthanum and neodymium hydroxides on secondary alkaline zinc electrode journal November 1997
Coupled modeling of cement/claystone interactions and radionuclide migration journal February 2004
Experimental determination of lead carbonate solubility at high ionic strengths: a Pitzer model description journal May 2015
Modeling of Near Field Actinide Concentrations in Radioactive Waste Repositories in Salt Formations: Effect of Buffer Materials journal January 2000
Experimental determination of the solubility constant for magnesium chloride hydroxide hydrate (Mg3Cl(OH)5·4H2O, phase 5) at room temperature, and its importance to nuclear waste isolation in geological repositories in salt formations journal August 2010
Neodymium conversion layers formed on zinc powder for improving electrochemical properties of zinc electrodes journal October 2008
Nd(III) Hydrolysis Constants and Solubilities of Nd(III) Hydroxide. journal January 1993
Thermodynamic Properties of Brucite Determined by Solubility Studies and Their Significance to Nuclear Waste Isolation journal July 2008
Experimental determination of solubilities of lead oxalate (PbC2O4(cr)) in a NaCl medium to high ionic strengths, and the importance of lead oxalate in low temperature environments journal March 2013
A Pitzer model for the Na–Al(OH)4–Cl–OH system and solubility of boehmite (AlOOH) to high ionic strength and to 250°C journal May 2014
Geochemical and isotopic evidence for a genetic link between Canadian Shield brines, dolomitization in the Western Canada Sedimentary Basin, and Devonian calcium-chloridic seawater journal November 2005
Experimental investigations of the reaction path in the MgO–CO2–H2O system in solutions with various ionic strengths, and their applications to nuclear waste isolation journal June 2008
Effect of neodymium on microstructure and corrosion resistance of AZ91 magnesium alloy journal February 2007