Stress corrosion cracking of candidate waste container materials; Final report Page: 66 of 86
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58
Table 21. pH25 C of Effluent Water
and pH93*C in Vessel
during SSRTs in
Simulated J-13 Waters
Test pH at p-I at
No. 25 C 93OCb
W-1 9.21 -
W-2 7.82
W-3 7.35 --
W-4 7.33 -
W-5 7.32 -
W-6 6.86 -
W-7 6.89 -
W-8 8.88 -
W-9 9.11
W-10 8.51 7.70
W-11 7.98 6.90
W-12 7.76 6.95
W-13 8.33 7.25
W-14 8.34 7.10
W-15 8.31 7.30
W-16 8.26 7.20
W-17 8.10 7.10
W-18 8.39 7.15
W-19 8.36 7.25
W-20 8.24 7.30
W-21 8.35 7.25
W-22 8.31 6.95
W-23 8.26 6.85
W-24 8.35 6.95
W-25 8.18 6.90
W-26 8.28 6.90
W-27 8.23 6.85
W-28 8.12 6.80
W-29 8.11 6.80
W-30 8.22 6.85
W-31 8.11 6.90
W-32 8.01 6.55
W-33 7.97 6.35
a Water chemistries are given in Tables
17-20; nominally the same concentra-
tions of ionic species were present in
Tests W-10 to W-33.
b Neutral pH at 93 C is 6.18.a.
w
0E
2
a-
C),
LI
N
C1o
50
0
-50
-100
-150
-200100
50
0
-50
-100
-150
20I0f9a
S200 400 600
Elapsed Time (Ii)
(a)
. ,
-
0 2 0 904000 0
.lapsed ......(h
(a)00
200
400
Elapsed Time (h)
(b)
Fig. 54. Electrochemical Potential of (a)
Incoloy 825 and (b) Cu-7%AI Alloy
SSRT Specimens at 93 C versus an
External 2 x 10-4 M KCL/AgCI/Ag
Reference Electrode as a Function of
Time during Tests W-13 and W-15soo
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Park, J. Y.; Maiya, P. S.; Soppet, W. K.; Diercks, D. R.; Shack, W. J. & Kassner, T. F. Stress corrosion cracking of candidate waste container materials; Final report, report, June 1, 1992; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc625520/m1/66/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.