Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Measurement of the glass dissolution rate in the presence of alteration phases

Conference ·
OSTI ID:274137
;  [1];  [2]
  1. Argonne National Lab., Idaho Falls, ID (United States)
  2. Pacific Northwest Lab., Richland, WA (United States)
The dissolution rate of LD6-5412 glass was measured at 90{circ}C in the presence of its alteration phases with the Product Consistency Test (PCT) Method B, the Vapor Hydration Test (VHT), and the Accelerated Dissolution Test (ADT). Alteration phases formed during the PCTs and VHTs, but variations in the time required for their nucleation resulted in large uncertainties in the measured rates. The alteration phases are generated separately for use in the SDTs, so the measured rates are not affected by the kinetics of alteration phase nucleation. The rates measured in the PCTs, VHTs, and ADTs were 0.4 g/(m{sup 2}{sm_bullet}d) (a lower bound), 2 g/(m{sup 2}{sm_bullet}d) (extrapolated from the results of tests run at high temperatures), and 1.4 g/(m{sup 2}{sm_bullet}d), respectively. The solution pHs were about 12 in all the tests.
Research Organization:
Argonne National Lab., Idaho Falls, ID (United States); Pacific Northwest Lab., Richland, WA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
274137
Report Number(s):
ANL/CMT/CP--88456; CONF-960804--40; ON: DE96012694
Country of Publication:
United States
Language:
English