Abstract
Hydrogen profiles in two hydrated soda-lime glasses were measured with a resonant nuclear reaction. In a glass with a transformed, hydrated layer, reliable hydrogen analyses could be obtained only by cooling the sample rapidly from the hydrating temperature to well below 0 ° C, and holding it at this temperature before and during analysis. If the glass was held at room temperature in a vacuum or in ambient air, it lost substantial amounts of hydrogen from the hydrated layer. A commercial soda-lime glass showed little difference between measured hydrogen levels in cooled samples and samples held and measured at room temperature, confirming that this glass does not have a transformed hydrated layer. The ratio of hydrogen to exchanged sodium in both of these glasses was three (within experimental error), suggesting hydronium for sodium ion exchange. The interdiffusion model for this exchange is the most successful.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
