Characterization of the Sulfur-Saturated Melt Versions of the LAW Phase 4 Glasses
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
In this report, results are provided from the analyses of a series of sulfur-saturated melt versions of simulated nuclear waste glasses, and chemical analysis of the wash solution resulting from the preparation of these glasses. The glasses were selected and fabricated by the Pacific Northwest National Laboratory as part of a broader study of the influence of glass composition on chemical durability, sulfur retention, and other properties. The resulting data will be used in the development of enhanced property/composition models for waste vitrification at Hanford. Chemical analyses were performed on a representative sample of each of the sulfur-saturated versions of the quenched glasses to allow for comparisons with the targeted compositions, as well as the measured compositions of the quenched glasses. The measured concentrations of chlorine, and fluorine were below the targeted values for most of the study glasses, likely because of volatility during the multiple melting steps. The measured concentrations of B2O3, K20, and Li20 were generally low relative to the targeted values. As expected, the measured concentrations of SO3 in most of the glasses were higher than targeted due to the use of the sulfur saturation method in fabricating these glasses. The wash solutions contained mainly sodium and sulfur, with moderate concentrations of potassium.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC09-08SR22470
- OSTI ID:
- 1776685
- Report Number(s):
- SRNL-STI-2020-00591; TRN: US2215458
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of the Sulfur-Saturated Melt Versions of the EMHQ LAW Glasses
Characterization of the Sulfur-Saturated Melt Versions of the HLW HAlG Glasses