pitzer.dat
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SOLUTION_MASTER_SPECIES
H H+ -1. H 1.008
H(1) H+ -1. 0.0
E e- 0.0 0.0 0.0
O H2O 0.0 O 16.00
O(-2) H2O 0.0 0.0
Ca Ca+2 0.0 Ca 40.08
Mg Mg+2 0.0 Mg 24.305
Na Na+ 0.0 Na 22.9898
K K+ 0.0 K 39.0983
Fe Fe+2 0.0 Fe 55.847
Mn Mn+2 0.0 Mn 54.938
Ba Ba+2 0.0 Ba 137.33
Sr Sr+2 0.0 Sr 87.62
Cl Cl- 0.0 Cl 35.453
C CO3-2 2.0 HCO3 12.0111
C(4) CO3-2 2.0 HCO3 12.0111
Alkalinity CO3-2 1.0 Ca0.5(CO3)0.5 50.05
S SO4-2 0.0 SO4 32.064
S(6) SO4-2 0.0 SO4
B B(OH)3 0.0 B 10.81
Li Li+ 0.0 Li 6.941
Br Br- 0.0 Br 79.904
SOLUTION_SPECIES
H+ = H+
log_k 0.000
-dw 9.31e-9
e- = e-
log_k 0.000
H2O = H2O
log_k 0.000
Ca+2 = Ca+2
log_k 0.000
-dw 0.793e-9
-millero -19.69 0.1058 -0.001256 1.617 -0.075 0.0008262
Mg+2 = Mg+2
log_k 0.000
-dw 0.705e-9
-millero -22.32 0.0868 -0.0016 2.017 -0.125 0.001457
Na+ = Na+
log_k 0.000
-dw 1.33e-9
-millero -3.46 0.1092 -0.000768 2.698 -0.106 0.001651
K+ = K+
log_k 0.000
-dw 1.96e-9
-millero 7.26 0.0892 -0.000736 2.722 -0.101 0.00151
Fe+2 = Fe+2
log_k 0.000
-dw 0.719e-9
Mn+2 = Mn+2
log_k 0.000
-dw 0.688e-9
Ba+2 = Ba+2
log_k 0.000
-dw 0.848e-9
Sr+2 = Sr+2
log_k 0.000
-dw 0.794e-9
-millero -18.44 0.0082 -0.0006 1.727 -0.067 0.00084
Cl- = Cl-
log_k 0.000
-dw 2.03e-9
-millero 16.37 0.0896 -0.001264 -1.494 0.034 -0.000621
CO3-2 = CO3-2
log_k 0.000
-dw 0.955e-9
-millero -8.74 0.300 -0.004064 5.65; # d is value for 25 oC, e and f not reported by Millero, 2000
SO4-2 = SO4-2
log_k 0.000
-dw 1.07e-9
-millero 9.26 0.284 -0.003808 0.4348 -0.0099143 -8.4762e-05
B(OH)3 = B(OH)3
log_k 0.000
-dw 1.1e-9
-millero 36.56 0.130 -0.00081 # d, e and f not reported by Millero, 2000
Li+ = Li+
log_k 0.000
-dw 1.03e-9
Br- = Br-
log_k 0.000
-dw 2.01e-9
-millero 22.98 0.0934 -0.000968 -1.675 0.05 -0.001105
H2O = OH- + H+
log_k -13.998
delta_h 13.345 kcal
# -analytic -283.971 -0.05069842 13323.0 102.24447 -1119669.0
-dw 5.27e-9
CO3-2 + H+ = HCO3-
log_k 10.3393
delta_h -3.561 kcal
-analytic 107.8975 0.03252849 -5151.79 -38.92561 563713.9
-dw 1.18e-9
-millero 21.07 0.185 -0.002248 2.29 -0.006644 -3.667E-06
CO3-2 + 2 H+ = CO2 + H2O
log_k 16.6767
delta_h -5.738 kcal
-analytic 464.1925 0.09344813 -26986.16 -165.75951 2248628.9
-dw 1.92e-9
#CO3-2 + 2 H+ = CO2 + H2O
# log_k 16.681
# delta_h -5.738 kcal
# -analytic 464.1965 0.09344813 -26986.16 -165.75951 2248628.9
SO4-2 + H+ = HSO4-
log_k 1.979
delta_h 4.91 kcal
-analytic -5.3585 0.0183412 557.2461
-dw 1.33e-9
B(OH)3 + H2O = B(OH)4- + H+
log_k -9.239
delta_h 0 kcal
3B(OH)3 = B3O3(OH)4- + 2H2O + H+
log_k -7.528
delta_h 0 kcal
4B(OH)3 = B4O5(OH)4-2 + 3H2O + 2H+
log_k -16.134
delta_h 0 kcal
Ca+2 + B(OH)3 + H2O = CaB(OH)4+ + H+
log_k -7.589
delta_h 0 kcal
Mg+2 + B(OH)3 + H2O = MgB(OH)4+ + H+
log_k -7.840
delta_h 0 kcal
Ca+2 + CO3-2 = CaCO3
log_k 3.151
delta_h 3.547 kcal
-analytic -1228.806 -0.299440 35512.75 485.818
-dw 4.46e-10 # complexes: calc'd with the Pikal formula
Mg+2 + H2O = MgOH+ + H+
log_k -11.809
delta_h 15.419 kcal
Mg+2 + CO3-2 = MgCO3
log_k 2.928
delta_h 2.535 kcal
-analytic -32.225 0.0 1093.486 12.72433
-dw 4.21e-10
PHASES
Anhydrite
CaSO4 = Ca+2 + SO4-2
log_k -4.362
-analytic 422.950 0.0 -18431. -147.708
Aragonite
CaCO3 = CO3-2 + Ca+2
log_k -8.336
delta_h -2.589 kcal
-analytic -171.8607 -.077993 2903.293 71.595
Arcanite
K2SO4 = + 1.0000 SO4-- + 2.0000 K+
log_k -1.776
-analytic 2.823 0.0 -1371.2
Bischofite
MgCl2:6H2O = + 1.0000 Mg++ + 2.0000 Cl- + 6.0000 H2O
log_k 4.455
-analytic 3.524 0.0 277.6
Bloedite
Na2Mg(SO4)2:4H2O = + 1.0000 Mg++ + 2.0000 Na+ + 2.0000 SO4-- + 4.0000 H2O
log_k -2.347
-delta_H 0 # Not possible to calculate enthalpy of reaction Bloedite
Brucite
Mg(OH)2 = + 1.0000 Mg++ + 2.0000 OH-
log_k -10.88
-delta_H 4.85 kcal/mol
# -analytic -1.0280e+002 -1.9759e-002 9.0180e+003 3.8282e+001 1.4075e+002
# -Range: 0-300
Burkeite
Na6CO3(SO4)2 = + 1.0000 CO3-2 + 2.0000 SO4-- + 6.0000 Na+
log_k -0.772
Calcite
CaCO3 = CO3-2 + Ca+2
log_k -8.406
delta_h -2.297 kcal
-analytic -171.8329 -0.077993 2839.319 71.595
Carnallite
KMgCl3:6H2O = K+ + Mg++ + 3Cl- + 6H2O
log_k 4.330
Celestite
SrSO4 = Sr+2 + SO4-2
log_k -6.630
-analytic 35.3106 -0.00422837 0. -14.99586 -318312.
Dolomite
CaMg(CO3)2 = Ca+2 + Mg+2 + 2 CO3-2
log_k -17.083
delta_h -9.436 kcal
Epsomite
MgSO4:7H2O = Mg+2 + SO4-2 + 7 H2O
log_k -1.881
-analytical 1.718 0.0 -1073.
Gaylussite
CaNa2(CO3)2:5H2O = Ca+2 + 2 CO3-2 + 2 Na+ + 5 H2O
log_k -9.421
Glaserite
NaK3(SO4)2 = Na+ + 3K+ + 2SO4-2
log_k -3.803
Glauberite
Na2Ca(SO4)2 = Ca+2 + 2 Na+ + 2 SO4-2
log_k -5.245
Gypsum
CaSO4:2H2O = Ca+2 + SO4-2 + 2 H2O
log_k -4.581
delta_h -0.109 kcal
-analytic 90.318 0.0 -4213. -32.641
Halite
NaCl = Cl- + Na+
log_k 1.570
-analytic -713.4616 -.1201241 37302.21 262.4583 -2106915.
Hexahydrite
MgSO4:6H2O = Mg+2 + SO4-2 + 6 H2O
log_k -1.635
-analytic -62.666 0.0 1828. 22.187
Kainite
KMgClSO4:3H2O = Cl- + K+ + Mg+2 + SO4-2 + 3 H2O
log_k -0.193
Kalicinite
KHCO3 = K+ + H+ + CO3-2
log_k -10.058
Kieserite
MgSO4:H2O = Mg+2 + SO4-2 + H2O
log_k -0.123
Labile_S
Na4Ca(SO4)3:2H2O = 4Na+ + Ca+2 + 3SO4-2 + 2H2O
log_k -5.672
Leonhardite
MgSO4:4H2O = Mg+2 + SO4-2 + 4H2O
log_k -0.887
Leonite
K2Mg(SO4)2:4H2O = Mg+2 + 2 K+ + 2 SO4-2 + 4 H2O
log_k -3.979
Magnesite
MgCO3 = CO3-2 + Mg+2
log_k -7.834
delta_h -6.169
Mirabilite
Na2SO4:10H2O = SO4-2 + 2 Na+ + 10 H2O
log_k -1.214
-analytic -3862.234 -1.19856 93713.54 1577.756 0.
Misenite
K8H6(SO4)7 = 6 H+ + 7 SO4-2 + 8 K+
log_k -10.806
Nahcolite
NaHCO3 = CO3-2 + H+ + Na+
log_k -10.742
Natron
Na2CO3:10H2O = CO3-2 + 2 Na+ + 10.0000 H2O
log_k -0.825
Nesquehonite
MgCO3:3H2O = CO3-2 + Mg+2 + 3 H2O
log_k -5.167
CO2(g)
CO2 = CO2
log_k -1.468
-analytic 108.3865 0.01985076 -6919.53 -40.45154 669365.0
Pentahydrite
MgSO4:5H2O = Mg+2 + SO4-2 + 5 H2O
log_k -1.285
Pirssonite
Na2Ca(CO3)2:2H2O = 2Na+ + Ca+2 + 2CO3-2 + 2 H2O
log_k -9.234
Polyhalite
K2MgCa2(SO4)4:2H2O = 2K+ + Mg+2 + 2 Ca+2 + 4SO4-2 + 2 H2O
log_k -13.744
Portlandite
Ca(OH)2 = Ca+2 + 2 OH-
log_k -5.190
Schoenite
K2Mg(SO4)2:6H2O = 2K+ + Mg+2 + 2 SO4-2 + 6H2O
log_k -4.328
Sylvite
KCl = K+ + Cl-
log_k 0.900
-analytic 3.984 0.0 -919.55
Syngenite
K2Ca(SO4)2:H2O = 2K+ + Ca+2 + 2SO4-2 + H2O
log_k -7.448
Trona
Na3H(CO3)2:2H2O = 3 Na+ + H+ + 2CO3-2 + 2H2O
log_k -11.384
Borax
Na2(B4O5(OH)4):8H2O + 2 H+ = 4 B(OH)3 + 2 Na+ + 5 H2O
log_k 12.464
Boric_acid,s
B(OH)3 = B(OH)3
log_k -0.030
KB5O8:4H2O
KB5O8:4H2O + 3H2O + H+ = 5B(OH)3 + K+
log_k 4.671
K2B4O7:4H2O
K2B4O7:4H2O + H2O + 2H+ = 4B(OH)3 + 2K+
log_k 13.906
NaBO2:4H2O
NaBO2:4H2O + H+ = B(OH)3 + Na+ + 3H2O
log_k 9.568
NaB5O8:5H2O
NaB5O8:5H2O + 2H2O + H+ = 5B(OH)3 + Na+
log_k 5.895
Teepleite
Na2B(OH)4Cl + H+ = B(OH)3 + 2Na+ + Cl- + H2O
log_k 10.840
H2O(g)
H2O = H2O
log_k 1.51
delta_h -44.03 kJ
# Stumm and Morgan, from NBS and Robie, Hemmingway, and Fischer (1978)
PITZER
-B0
Na+ Cl- 0.0765 -777.03 -4.4706 0.008946 -3.3158E-6
K+ Cl- 0.04835 0 0 5.794E-4
Mg+2 Cl- 0.35235 0 0 -1.943E-4
Ca+2 Cl- 0.3159 0 0 -1.725E-4
MgOH+ Cl- -0.1
H+ Cl- 0.1775 0 0 -3.081E-4
Li+ Cl- 0.1494 0 0 -1.685E-4
Sr+2 Cl- 0.2858 0 0 0.717E-3
Fe+2 Cl- 0.335925
Mn+2 Cl- 0.327225
Ba+2 Cl- 0.2628 0 0 0.6405E-3
CaB(OH)4+ Cl- 0.12
MgB(OH)4+ Cl- 0.16
Na+ Br- 0.0973 0 0 7.692E-4
K+ Br- 0.0569 0 0 7.39E-4
H+ Br- 0.1960 0 0 -2.049E-4
Mg+2 Br- 0.4327 0 0 -5.625E-5
Ca+2 Br- 0.3816 0 0 -5.2275E-4
Li+ Br- 0.1748 0 0 -1.819E-4
Sr+2 Br- 0.331125 0 0 -0.32775E-3
Ba+2 Br- 0.31455 0 0 -0.33825E-3
Na+ SO4-2 0.01958 0 0 2.367E-3
K+ SO4-2 0.04995 0 0 1.44E-3
Mg+2 SO4-2 0.221 0 0 -0.69E-3
Ca+2 SO4-2 0.2
H+ SO4-2 0.0298
Li+ SO4-2 0.136275 0 0 0.5055E-3
Sr+2 SO4-2 0.200 0 0 -2.9E-3
Fe+2 SO4-2 0.2568
Mn+2 SO4-2 0.2065
Na+ HSO4- 0.0454
K+ HSO4- -0.0003
Mg+2 HSO4- 0.4746
Ca+2 HSO4- 0.2145
H+ HSO4- 0.2065
Fe+2 HSO4- 0.4273
Na+ OH- 0.0864 0 0 7.00E-4
K+ OH- 0.1298
Ca+2 OH- -0.1747
Li+ OH- 0.015
Ba+2 OH- 0.17175
Na+ HCO3- 0.0277 0 0 1.00E-3
K+ HCO3- 0.0296 0 0 0.996E-3
Mg+2 HCO3- 0.329
Ca+2 HCO3- 0.4
Sr+2 HCO3- 0.12
Na+ CO3-2 0.0399 0 0 1.79E-3
K+ CO3-2 0.1488 0 0 1.788E-3
Na+ B(OH)4- -0.0427
Na+ B3O3(OH)4- -0.056
Na+ B4O5(OH)4-2 -0.11
K+ B(OH)4- 0.035
K+ B3O3(OH)4- -0.13
K+ B4O5(OH)4-2 -0.022
-B1
Na+ Cl- 0.2664 0 0 6.1608E-5 1.0715E-6
K+ Cl- 0.2122 0 0 10.71E-4
Mg+2 Cl- 1.6815 0 0 3.6525E-3
Ca+2 Cl- 1.614 0 0 3.9E-3
MgOH+ Cl- 1.658
H+ Cl- 0.2945 0 0 1.419E-4
Li+ Cl- 0.3074 0 0 5.366E-4
Sr+2 Cl- 1.667 0 0 2.8425E-3
Fe+2 Cl- 1.53225
Mn+2 Cl- 1.55025
Ba+2 Cl- 1.49625 0 0 3.2325E-3
Na+ Br- 0.2791 0 0 10.79E-4
K+ Br- 0.2212 0 0 17.40E-4
H+ Br- 0.3564 0 0 4.467E-4
Mg+2 Br- 1.753 0 0 3.8625E-3
Ca+2 Br- 1.613 0 0 6.0375E-3
Li+ Br- 0.2547 0 0 6.636E-4
Sr+2 Br- 1.7115 0 0 6.5325E-3
Ba+2 Br- 1.56975 0 0 6.78E-3
Na+ SO4-2 1.113 0 0 5.6325E-3
K+ SO4-2 0.7793 0 0 6.6975E-3
Mg+2 SO4-2 3.343 0 0 1.53E-2
Ca+2 SO4-2 3.1973 0 0 5.46E-2
Li+ SO4-2 1.2705 0 0 1.41E-3
Sr+2 SO4-2 3.1973 0 0 27.0E-3
Fe+2 SO4-2 3.063
Mn+2 SO4-2 2.9511
Na+ HSO4- 0.398
K+ HSO4- 0.1735
Mg+2 HSO4- 1.729
Ca+2 HSO4- 2.53
H+ HSO4- 0.5556
Fe+2 HSO4- 3.48
Na+ OH- 0.253 0 0 1.34E-4
K+ OH- 0.32
Ca+2 OH- -0.2303
Li+ OH- 0.14
Ba+2 OH- 1.2
Na+ HCO3- 0.0411 0 0 1.10E-3
K+ HCO3- -0.013 0 0 1.104E-3
Mg+2 HCO3- 0.6072
Ca+2 HCO3- 2.977
Na+ CO3-2 1.389 0 0 2.05E-3
K+ CO3-2 1.43 0 0 2.051E-3
Na+ B(OH)4- 0.089
Na+ B3O3(OH)4- -0.910
Na+ B4O5(OH)4-2 -0.40
K+ B(OH)4- 0.14
-B2
Mg+2 SO4-2 -37.23 0 0 -0.253
Ca+2 SO4-2 -54.24 0 0 -0.516
Sr+2 SO4-2 -54.24 0 0 -0.42
Fe+2 SO4-2 -42.0
Mn+2 SO4-2 -40.0
Ca+2 OH- -5.72
-C0
Na+ Cl- 0.00127 33.317 0.09421 -4.655E-5
K+ Cl- -0.00084 0 0 -5.095E-5
Mg+2 Cl- 0.00519 0 0 -1.64933E-4
Ca+2 Cl- -0.00034
H+ Cl- 0.0008 0 0 6.213E-5
Li+ Cl- 0.00359 0 0 -4.520E-5
Sr+2 Cl- -0.00130
Fe+2 Cl- -0.00860725
Mn+2 Cl- -0.0204972
Ba+2 Cl- -0.0193782 0 0 -1.53796E-4
Na+ Br- 0.00116 0 0 -9.30E-5
K+ Br- -0.00180 0 0 -7.004E-5
H+ Br- 0.00827 0 0 -5.685E-5
Mg+2 Br- 0.00312
Ca+2 Br- -0.00257
Li+ Br- 0.0053 0 0 -2.813E-5
Sr+2 Br- 0.00122506
Ba+2 Br- -0.0159576
Na+ SO4-2 0.00497 0 0 -4.87904E-4
Mg+2 SO4-2 0.025 0 0 0.523E-3
H+ SO4-2 0.0438
Li+ SO4-2 -0.00399338 0 0 -2.33345E-4
Fe+2 SO4-2 0.0209
Mn+2 SO4-2 0.01636
Na+ OH- 0.0044 0 0 -18.94E-5
K+ OH- 0.0041
K+ HCO3- -0.008
Na+ CO3-2 0.0044
K+ CO3-2 -0.0015
Na+ B(OH)4- 0.0114
-THETA
K+ Na+ -0.012
Mg+2 Na+ 0.07
Ca+2 Na+ 0.07
Sr+2 Na+ 0.051
H+ Na+ 0.036
Ca+2 K+ 0.032
H+ K+ 0.005
Ca+2 Mg+2 0.007
H+ Mg+2 0.1
H+ Ca+2 0.092
SO4-2 Cl- 0.02
HSO4- Cl- -0.006
OH- Cl- -0.05
HCO3- Cl- 0.03
CO3-2 Cl- -0.02
B(OH)4- Cl- -0.065
B3O3(OH)4- Cl- 0.12
B4O5(OH)4-2 Cl- 0.074
OH- Br- -0.065
OH- SO4-2 -0.013
HCO3- SO4-2 0.01
CO3-2 SO4-2 0.02
B(OH)4- SO4-2 -0.012
B3O3(OH)4- SO4-2 0.10
B4O5(OH)4-2 SO4-2 0.12
CO3-2 OH- 0.1
CO3-2 HCO3- -0.04
B3O3(OH)4- HCO3- -0.10
B4O5(OH)4-2 HCO3- -0.087
-LAMDA
Na+ CO2 0.1
K+ CO2 0.051
Mg+2 CO2 0.183
Ca+2 CO2 0.183
Cl- CO2 -0.005
SO4-2 CO2 0.097
HSO4- CO2 -0.003
Na+ B(OH)3 -0.097
K+ B(OH)3 -0.14
Cl- B(OH)3 0.091
SO4-2 B(OH)3 0.018
B3O3(OH)4- B(OH)3 -0.20
-ZETA
H+ Cl- B(OH)3 -0.0102
Na+ SO4-2 B(OH)3 0.046
-PSI
Na+ K+ Cl- -0.0018
Na+ K+ Br- -0.0022
Na+ K+ SO4-2 -0.010
Na+ K+ HCO3- -0.003
Na+ K+ CO3-2 0.003
Na+ Ca+2 Cl- -0.007
Na+ Sr+2 Cl- -0.0021
Na+ Ca+2 SO4-2 -0.055
Na+ Mg+2 Cl- -0.012
Na+ Mg+2 SO4-2 -0.015
Na+ H+ Cl- -0.004
Na+ H+ Br- -0.012
Na+ H+ HSO4- -0.0129
K+ Ca+2 Cl- -0.025
K+ Mg+2 Cl- -0.022
K+ Mg+2 SO4-2 -0.048
K+ H+ Cl- -0.011
K+ H+ Br- -0.021
K+ H+ SO4-2 0.197
K+ H+ HSO4- -0.0265
Ca+2 Mg+2 Cl- -0.012
Ca+2 Mg+2 SO4-2 0.024
Ca+2 H+ Cl- -0.015
Mg+2 MgOH+ Cl- 0.028
Mg+2 H+ Cl- -0.011
Mg+2 H+ HSO4- -0.0178
Cl- Br- K+ 0.0000
Cl- SO4-2 Na+ 0.0014
Cl- SO4-2 Ca+2 -0.018
Cl- SO4-2 Mg+2 -0.004
Cl- HSO4- Na+ -0.006
Cl- HSO4- H+ 0.013
Cl- OH- Na+ -0.006
Cl- OH- K+ -0.006
Cl- OH- Ca+2 -0.025
Cl- HCO3- Na+ -0.015
Cl- HCO3- Mg+2 -0.096
Cl- CO3-2 Na+ 0.0085
Cl- CO3-2 K+ 0.004
Cl- B(OH)4- Na+ -0.0073
Cl- B3O3(OH)4- Na+ -0.024
Cl- B4O5(OH)4-2 Na+ 0.026
SO4-2 HSO4- Na+ -0.0094
SO4-2 HSO4- K+ -0.0677
SO4-2 HSO4- Mg+2 -0.0425
SO4-2 OH- Na+ -0.009
SO4-2 OH- K+ -0.050
SO4-2 HCO3- Na+ -0.005
SO4-2 HCO3- Mg+2 -0.161
SO4-2 CO3-2 Na+ -0.005
SO4-2 CO3-2 K+ -0.009
OH- CO3-2 Na+ -0.017
OH- CO3-2 K+ -0.01
OH- Br- Na+ -0.018
OH- Br- K+ -0.014
HCO3- CO3-2 Na+ 0.002
HCO3- CO3-2 K+ 0.012
EXCHANGE_MASTER_SPECIES
X X-
EXCHANGE_SPECIES
X- = X-
log_k 0.0
Na+ + X- = NaX
log_k 0.0
K+ + X- = KX
log_k 0.7
delta_h -4.3 # Jardine & Sparks, 1984
Li+ + X- = LiX
log_k -0.08
delta_h 1.4 # Merriam & Thomas, 1956
Ca+2 + 2X- = CaX2
log_k 0.8
delta_h 7.2 # Van Bladel & Gheyl, 1980
Mg+2 + 2X- = MgX2
log_k 0.6
delta_h 7.4 # Laudelout et al., 1968
Sr+2 + 2X- = SrX2
log_k 0.91
delta_h 5.5 # Laudelout et al., 1968
Ba+2 + 2X- = BaX2
log_k 0.91
delta_h 4.5 # Laudelout et al., 1968
Mn+2 + 2X- = MnX2
log_k 0.52
Fe+2 + 2X- = FeX2
log_k 0.44
SURFACE_MASTER_SPECIES
Hfo_s Hfo_sOH
Hfo_w Hfo_wOH
SURFACE_SPECIES
# All surface data from
# Dzombak and Morel, 1990
#
#
# Acid-base data from table 5.7
#
# strong binding site--Hfo_s,
Hfo_sOH = Hfo_sOH
log_k 0.0
Hfo_sOH + H+ = Hfo_sOH2+
log_k 7.29 # = pKa1,int
Hfo_sOH = Hfo_sO- + H+
log_k -8.93 # = -pKa2,int
# weak binding site--Hfo_w
Hfo_wOH = Hfo_wOH
log_k 0.0
Hfo_wOH + H+ = Hfo_wOH2+
log_k 7.29 # = pKa1,int
Hfo_wOH = Hfo_wO- + H+
log_k -8.93 # = -pKa2,int
###############################################
# CATIONS #
###############################################
#
# Cations from table 10.1 or 10.5
#
# Calcium
Hfo_sOH + Ca+2 = Hfo_sOHCa+2
log_k 4.97
Hfo_wOH + Ca+2 = Hfo_wOCa+ + H+
log_k -5.85
# Strontium
Hfo_sOH + Sr+2 = Hfo_sOHSr+2
log_k 5.01
Hfo_wOH + Sr+2 = Hfo_wOSr+ + H+
log_k -6.58
Hfo_wOH + Sr+2 + H2O = Hfo_wOSrOH + 2H+
log_k -17.60
# Barium
Hfo_sOH + Ba+2 = Hfo_sOHBa+2
log_k 5.46
Hfo_wOH + Ba+2 = Hfo_wOBa+ + H+
log_k -7.2 # table 10.5
#
# Derived constants table 10.5
#
# Magnesium
Hfo_wOH + Mg+2 = Hfo_wOMg+ + H+
log_k -4.6
# Manganese
Hfo_sOH + Mn+2 = Hfo_sOMn+ + H+
log_k -0.4 # table 10.5
Hfo_wOH + Mn+2 = Hfo_wOMn+ + H+
log_k -3.5 # table 10.5
# Iron
# Hfo_sOH + Fe+2 = Hfo_sOFe+ + H+
# log_k 0.7 # LFER using table 10.5
# Hfo_wOH + Fe+2 = Hfo_wOFe+ + H+
# log_k -2.5 # LFER using table 10.5
# Iron, strong site: Appelo, Van der Weiden, Tournassat & Charlet, subm.
Hfo_sOH + Fe+2 = Hfo_sOFe+ + H+
log_k -0.95
# Iron, weak site: Liger et al., GCA 63, 2939, re-optimized for D&M
Hfo_wOH + Fe+2 = Hfo_wOFe+ + H+
log_k -2.98
Hfo_wOH + Fe+2 + H2O = Hfo_wOFeOH + 2H+
log_k -11.55
###############################################
# ANIONS #
###############################################
#
# Anions from table 10.6
#
#
# Anions from table 10.7
#
# Borate
Hfo_wOH + B(OH)3 = Hfo_wH2BO3 + H2O
log_k 0.62
#
# Anions from table 10.8
#
# Sulfate
Hfo_wOH + SO4-2 + H+ = Hfo_wSO4- + H2O
log_k 7.78
Hfo_wOH + SO4-2 = Hfo_wOHSO4-2
log_k 0.79
#
# Carbonate: Van Geen et al., 1994 reoptimized for HFO
# 0.15 g HFO/L has 0.344 mM sites == 2 g of Van Geen's Goethite/L
#
# Hfo_wOH + CO3-2 + H+ = Hfo_wCO3- + H2O
# log_k 12.56
#
# Hfo_wOH + CO3-2 + 2H+= Hfo_wHCO3 + H2O
# log_k 20.62
END
MEAN GAM
CaCl2
CaSO4
CaCO3
Ca(OH)2
MgCl2
MgSO4
MgCO3
Mg(OH)2
NaCl
Na2SO4
NaHCO3
Na2CO3
NaOH
KCl
K2SO4
KHCO3
K2CO3
KOH
HCl
H2SO4
HBr
END
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