The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis
Abstract Selecting appropriate buffers is crucial for evaluating the chemical durability of glass under controlled conditions such as in the EPA 1313 test designed to measure elemental release as a function of pH. The efficacy of two alkali-metal free buffers, TRIS (NH2C(CH2OH)3) and ammonium chlori...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-025-00552-3 |
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| author | Ramya Ravikumar Clare L. Thorpe Claire L. Corkhill Sam A. Walling James J. Neeway Carolyn I. Pearce Albert A. Kruger David S. Kosson Jose Marcial Russell J. Hand |
| author_facet | Ramya Ravikumar Clare L. Thorpe Claire L. Corkhill Sam A. Walling James J. Neeway Carolyn I. Pearce Albert A. Kruger David S. Kosson Jose Marcial Russell J. Hand |
| author_sort | Ramya Ravikumar |
| collection | DOAJ |
| description | Abstract Selecting appropriate buffers is crucial for evaluating the chemical durability of glass under controlled conditions such as in the EPA 1313 test designed to measure elemental release as a function of pH. The efficacy of two alkali-metal free buffers, TRIS (NH2C(CH2OH)3) and ammonium chloride—ammonia (NH3/NH4Cl), was investigated during EPA 1313 testing of a simulated Hanford low-activity waste borosilicate glass in the alkaline regime (pH 8.5–10.5) at varying temperatures (RT, 40 °C, and 60 °C). While both buffers maintained the desired pH at room temperature, and up to 40 °C, the effectiveness of TRIS decreased at elevated temperatures, particularly at pH 10.5. Although 11B NMR showed evidence of TRIS-B complexation, its effect on the rate of elemental release was found to be negligible under the test conditions. With ammonium buffer, the release of alkali cations was slightly elevated when compared to the same conditions with TRIS at early time points. |
| format | Article |
| id | doaj-art-68f0939c10aa49b298ecedd015cdf196 |
| institution | Kabale University |
| issn | 2397-2106 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj-art-68f0939c10aa49b298ecedd015cdf1962025-01-19T12:33:51ZengNature Portfolionpj Materials Degradation2397-21062025-01-019111210.1038/s41529-025-00552-3The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysisRamya Ravikumar0Clare L. Thorpe1Claire L. Corkhill2Sam A. Walling3James J. Neeway4Carolyn I. Pearce5Albert A. Kruger6David S. Kosson7Jose Marcial8Russell J. Hand9School of Chemical, Materials and Biological Engineering, University of SheffieldSchool of Chemical, Materials and Biological Engineering, University of SheffieldSchool of Earth Sciences, University of BristolSchool of Chemical, Materials and Biological Engineering, University of SheffieldPacific Northwest National LaboratoryPacific Northwest National LaboratoryOffice of River Protection, U.S. Department of EnergyDepartment of Civil and Environmental Engineering, Vanderbilt University and CRESP NashvillePacific Northwest National LaboratorySchool of Chemical, Materials and Biological Engineering, University of SheffieldAbstract Selecting appropriate buffers is crucial for evaluating the chemical durability of glass under controlled conditions such as in the EPA 1313 test designed to measure elemental release as a function of pH. The efficacy of two alkali-metal free buffers, TRIS (NH2C(CH2OH)3) and ammonium chloride—ammonia (NH3/NH4Cl), was investigated during EPA 1313 testing of a simulated Hanford low-activity waste borosilicate glass in the alkaline regime (pH 8.5–10.5) at varying temperatures (RT, 40 °C, and 60 °C). While both buffers maintained the desired pH at room temperature, and up to 40 °C, the effectiveness of TRIS decreased at elevated temperatures, particularly at pH 10.5. Although 11B NMR showed evidence of TRIS-B complexation, its effect on the rate of elemental release was found to be negligible under the test conditions. With ammonium buffer, the release of alkali cations was slightly elevated when compared to the same conditions with TRIS at early time points.https://doi.org/10.1038/s41529-025-00552-3 |
| spellingShingle | Ramya Ravikumar Clare L. Thorpe Claire L. Corkhill Sam A. Walling James J. Neeway Carolyn I. Pearce Albert A. Kruger David S. Kosson Jose Marcial Russell J. Hand The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis npj Materials Degradation |
| title | The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis |
| title_full | The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis |
| title_fullStr | The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis |
| title_full_unstemmed | The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis |
| title_short | The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis |
| title_sort | effectiveness of tris and ammonium buffers in glass dissolution studies a comparative analysis |
| url | https://doi.org/10.1038/s41529-025-00552-3 |
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