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Behavior of B in passivating gels formed on International Simple Glass in acid and basic pH

Journal Article · · Journal of Non-Crystalline Solids
 [1];  [2];  [2];  [2];  [2]
  1. University of Montpellier (France); Alternative Energies and Atomic Energy Commission (CEA), Cadarache (France); OSTI
  2. University of Montpellier (France); Alternative Energies and Atomic Energy Commission (CEA), Cadarache (France)

International Simple Glass altered for years in silica saturated conditions develops a passivating gel, which retains some mobile elements such as B and Ca in its inner region. It has been suggested that the retention of these elements impacts the dissolution rate of the glass. However, the elements' retention mechanism, speciation, and diffusion properties are still unknown. This study finds that simultaneous presence of B and Ca in the solution can dramatically slow down glass alteration. However, splitting the B and Ca into two different solutions with other glass elements did not give similar protection against glass alteration. These experiments along with other experiments conducted in basic or acid pH, in which isotopically tagged B can diffuse in gels revealed that (i) water diffusion is not dramatically affected by the retention of B and Ca in passivating gels, and (ii) slow diffusion and high retention of B is observed only in gels developed in basic pH during the tracing experiments. Finally, this last mechanism therefore appears as one of the many mechanisms controlling the glass dissolution rate in the residual regime.

Research Organization:
The Ohio State Univ., Columbus, OH (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Performance and Design of Nuclear Waste Forms and Containers (WastePD)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0016584
OSTI ID:
2420562
Alternate ID(s):
OSTI ID: 1893555
Journal Information:
Journal of Non-Crystalline Solids, Journal Name: Journal of Non-Crystalline Solids Vol. 598; ISSN 0022-3093
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (37)

Glassy Wasteforms for Nuclear Waste Immobilization journal November 2010
11B NMR investigation of boron interaction with mineral surfaces: Results for boehmite, silica gel and illite journal July 2006
Atom-Probe Tomography, TEM and ToF-SIMS study of borosilicate glass alteration rim: A multiscale approach to investigating rate-limiting mechanisms journal April 2017
The pH dependence of the isotopic composition of boron adsorbed on amorphous silica journal September 2021
On the dissolution of a borosilicate glass with the use of isotopic tracing – Insights into the mechanism for the long-term dissolution rate journal February 2022
Monte Carlo simulations of borosilicate glass corrosion: predictions for morphology and kinetics journal October 2004
Investigation of gel porosity clogging during glass leaching journal November 2008
Effect of composition on the short-term and long-term dissolution rates of ten borosilicate glasses of increasing complexity from 3 to 30 oxides journal September 2012
Water diffusion in the simulated French nuclear waste glass SON 68 contacting silica rich solutions: Experimental and modeling journal September 2006
Dissolution mechanism of the SON68 reference nuclear waste glass: New data in dynamic system in silica saturation conditions journal August 2011
A mechanistic model for long-term nuclear waste glass dissolution integrating chemical affinity and interfacial diffusion barrier journal April 2017
Effect of pH on the stability of passivating gel layers formed on International Simple Glass journal October 2019
An international initiative on long-term behavior of high-level nuclear waste glass journal June 2013
Recent Advances in Corrosion Science Applicable To Disposal of High-Level Nuclear Waste journal July 2021
New Insights about the Importance of the Alteration Layer/Glass Interface journal April 2020
Molecular Dynamics Simulations of Water Structure and Diffusion in a 1 nm Diameter Silica Nanopore as a Function of Surface Charge and Alkali Metal Counterion Identity journal July 2018
A General Mechanism for Gel Layer Formation on Borosilicate Glass under Aqueous Corrosion journal February 2020
Acidity measurements at elevated temperatures. VI. Boric acid equilibriums journal March 1972
Origin and consequences of silicate glass passivation by surface layers journal February 2015
Insight into silicate-glass corrosion mechanisms journal October 2008
Dynamics of self-reorganization explains passivation of silicate glasses journal June 2018
Structure of International Simple Glass and properties of passivating layer formed in circumneutral pH conditions journal February 2018
Chemical durability of peraluminous glasses for nuclear waste conditioning journal March 2018
Impacts of glass composition, pH, and temperature on glass forward dissolution rate journal August 2018
Comparative effect of alkaline elements and calcium on alteration of International Simple Glass journal March 2019
ToF-SIMS depth profiling of altered glass journal April 2019
Hydrogen bonding interactions of H2O and SiOH on a boroaluminosilicate glass corroded in aqueous solution journal January 2020
Review of corrosion interactions between different materials relevant to disposal of high-level nuclear waste journal November 2020
Insights into the mechanisms controlling the residual corrosion rate of borosilicate glasses journal December 2020
Aqueous alteration of silicate glass: state of knowledge and perspectives journal August 2021
Forty years of durability assessment of nuclear waste glass by standard methods journal December 2021
Formation of a Eu( iii ) borate solid species from a weak Eu( iii ) borate complex in aqueous solution journal January 2014
First-Principles Study of Hydrolysis Reaction Barriers in a Sodium Borosilicate Glass journal November 2013
Impact of aqueous solution pH on network structure of corrosion‐induced surface layers of boroaluminosilicate glass journal June 2022
Nuclear Waste Glasses - How Durable? journal December 2006
An Assessment of Initial Leaching Characteristics of Alkali-Borosilicate Glasses for Nuclear Waste Immobilization journal May 2019
Equilibrium Studies of Polyanions. 8. On the First Equilibrium Steps in the Hydrolysis of Boric Acid, a Comparison between Equilibria in 0.1 M and 3.0 M NaClO4. journal January 1962

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