Interim Report - Hanford Site

Appendix A
Table A.1. The logK Values for Uranium Species at 25°C within the EQ3/6 Code V8.0 Database
Aqueous Species Solid Species Auxiliary Basis Set Gaseous Species
Formula
logK
(25°C) Formula
logK
(25°C) Formula
logK
(25°C) Formula
logK
(25°C)
+2
(UO 2 ) 11 (CO 3 ) 6 (OH) 12 25.8549 (UO 2 ) 2 As 2 O 7 7.7285 U +3 62.8818 U 294.0076
(UO 2 ) 2 (OH) +2 2 5.6565 (UO 2 ) 2 Cl 3 12.7453 38.2257 U 2 Cl 10 82.7628
-6
(UO 2 ) 2 (PuO 2 )(CO 3 ) 6 9.3821 (UO 2 ) 2 P 2 O 7 -14.6607 U +4 32.5032 U 2 Cl 8 82.4214
(UO 2 ) 2 CO 3 (OH) -1 3 11.2448 (UO 2 ) 3 (AsO 4 ) 2 9.3507 23.115 U 2 F 10 -12.288
-6
(UO 2 ) 2 NpO 2 (CO 3 ) 6 8.4965 (UO 2 ) 3 (PO 4 ) 2 -13.9912 UO +2 -13.2003 UBr 221.9432
(UO 2 ) 2 OH +3 2.7291 (UO 2 ) 3 (PO 4 ) 2 : 4 H 2 O -27.0022 -12.1542 UBr 2 189.7405
-6
(UO 2 ) 3 (CO 3 ) 6 8.093 (UO 2 ) 3 (PO 4 ) 2 : 6 H 2 O -27.8204 UBr 3 67.6501
+2
(UO 2 ) 3 (OH) 4 11.9618 Ba 2 U 2 O 7 36.4643 UBr 4 54.3003
+1
(UO 2 ) 3 (OH) 5 15.6191 Ba 3 UO 6 94.382 UBr 5 61.4276
-1
(UO 2 ) 3 (OH) 7 31.0836 BaU 2 O 7 21.9795 UCl 218.8907
(UO 2 ) 3 O(OH) 2 (HCO 3 ) +1 9.7457 BaUO 4 18.2117 UCl 2 180.9038
+1
(UO 2 ) 4 (OH) 7 21.9946 Be 13 U 1549.9856 UCl 3 58.3918
HUO 2 (aq) 21.2025 CaUO 4 15.953 UCl 4 46.4066
+1
HUO 2 5.0031 Cs 2 U 2 O 7 31.0483 UCl 5 54.5315
-1
HUO 3 16.5756 CS 2 U 4 O 12 18.9686 UCl 6 63.4902
-1
HUO 4 19.2454 Cs 2 UO 4 35.9038 UF 203.3704
-4
U(CO 3 ) 4 6.2611 Li 2 UO 4 27.8531 UF 2 169.4689
U(CO 3 ) 5 -6 17.8247 MgUO 4 23.0133 UF 3 47.0125
+2
U(NO 3 ) 2 -2.2533 Na 2 U 2 O 7 22.6135 UF 4 14.6056
+2
U(SCN) 2 -4.2585 Na 2 UO 4 30.0341 UF 5 6.3805
U(SO 4 ) 2 (aq) -10.3431 Na 3 UO 4 56.2577 UF 6 18.2645
UBr +3 -1.4163 Na 4 UO 2 (CO 3 ) 3 4.0504 UI 227.9182
UCl +3 -1.6997 NaUO 3 8.3374 UI 2 191.6521
UF +3 -9.2327 Rb 2 UO 4 34.0198 UI 3 75.3615
+2
UF 2 -16.1429 UO 3 : 2H 2 O
4.8443 UI 4 64.3349
(Schoepite)
UF +1 3 -21.4731 SrUO 4 (alpha) 19.176 UO 208.7712
UF 4 (aq) -25.4332 Uranium 208.4445 UO 2 124.1645
-1
UF 5 -26.8034 U(HPO 4 ) 2 :4H 2 O -32.8574 UO 2 Cl 2 47.974
UF -2 -28.8336 U(OH) 2 SO 4 -3.0654 UO 2 F 2 34.6784
UI +3 -1.2074 U(SO 3 ) 2 -36.7421 UO 3 70.9589
+3
UNO 3 -1.4429 U(SO 4 ) 2 -11.9785 UOF 4 24.2957
UO +1 12.7087 U(SO 4 ) 2 :4H 2 O -11.5208
UO +2 2.0068 U(SO 4 ) 2 :8H 2 O -12.5479
-2
UO 2 (CO 3 ) 2 3.7577 U 2 C 3 441.7818
UO 2 (CO 3 ) -5 3 23.6245 U 2 F 9 -45.4942
-4
UO 2 (CO 3 ) 3 9.4411 U 2 O 2 Cl 5 19.2832
UO 2 (H 2 PO 4 )(H 3 PO 4 ) +1 -22.7428 U 2 O 3 F 6 -2.4845
UO 2 (H 2 PO 4 ) 2 (aq) -21.7328 U 2 S 3 10.4341
UO 2 (IO 3 ) 2 (aq) -2.986 U 2 Se 3 234.5112
A.1