The effects of the glass surface area/solution volume ratio on glass corrosion: A critical review
- Argonne National Lab., IL (United States). Chemical Technology Div.
This report reviews and summarizes the present state of knowledge regarding the effects of the glass surface area/solution volume (SA/V) ratio on the corrosion behavior of borosilicate waste glasses. The SA/V ratio affects the rate of glass corrosion through the extent of dilution of corrosion products released from the glass into the leachate solution: glass corrosion products are diluted more in tests conducted at low SA/V ratios than they are in tests conducted at high SA/V ratios. Differences in the solution chemistries generated in tests conducted at different SA/V ratios then affect the observed glass corrosion behavior. Therefore, any testing parameter that affects the solution chemistry will also affect the glass corrosion rate. The results of static leach tests conducted to assess the effects of the SA/V are discussed with regard to the effects of SA/V on the solution chemistry. Test results show several remaining issues with regard to the long-term glass corrosion behavior: can the SA/V ratio be used as an accelerating parameter to characterize the advanced stages of glass corrosion relevant to long disposal times; is the alteration of the glass surface the same in tests conducted at different SA/V, and in tests conducted with monolithic and crushed glass samples; what are the effects of the SA/V and the extent of glass corrosion on the disposition of released radionuclides? These issues will bear on the prediction of the long-term performance of waste glasses during storage. The results of an experimental program conducted at ANL to address these and other remaining issues regarding the effects of SA/V on glass corrosion are described. 288 refs., 59 figs., 16 tabs.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 67461
- Report Number(s):
- ANL--94/34; ON: DE95011008
- Country of Publication:
- United States
- Language:
- English
Similar Records
A comparison of glass reaction at high and low glass surface/solution volume
Laboratory testing of waste glass aqueous corrosion; effects of experimental parameters
Laboratory testing of LITCO glasses
Journal Article
·
Tue Nov 30 23:00:00 EST 1993
· Nuclear Technology; (United States)
·
OSTI ID:5624737
Laboratory testing of waste glass aqueous corrosion; effects of experimental parameters
Conference
·
Thu Dec 30 23:00:00 EST 1993
·
OSTI ID:10110498
Laboratory testing of LITCO glasses
Technical Report
·
Thu Jun 01 00:00:00 EDT 1995
·
OSTI ID:80967