A kinetic model for the dissolution of borosilicate glass
Abstract
A kinetic model for the dissolution of borosilicate glass, incorporated into the EQ3/6 geochemical modeling code, is used to predict the dissolution rate of a nuclear waste glass. The glass dissolution rate is controlled by the rate of dissolution of an alkali-depleted amorphous surface gel layer. The good agreement between predicted and observed dissolution behavior suggests that the experimentally obtained non-linear glass release rates are not diffusion controlled, as previously believed, but are instead controlled by dissolution affinity. The model predicts that the long-term rate of glass dissolution will depend mainly on ion concentrations in solution, and therefore the secondary phases which precipitate and control ion concentrations.
Fields of Study & Subjects
Glass properties and applications
Nuclear materials and radiation effects
Zeolite Catalysis and Synthesis
Publication details
- Journal / source
- Water-Rock Interaction (WRI-6)
- Publisher
- CRC Press
- Pages
- 107–110
- Publication date
- 20 February 2026
- Language
- EN
- Document type
- Book chapter