Input file: H:\ntc\03\Monday\redox.pqi Output file: H:\ntc\03\Monday\redox.pqo Database file: C:\Program Files\USGS\Phreeqc Interactive 2.6\phreeqc.dat ------------------ Reading data base. ------------------ SOLUTION_MASTER_SPECIES SOLUTION_SPECIES PHASES EXCHANGE_MASTER_SPECIES EXCHANGE_SPECIES SURFACE_MASTER_SPECIES SURFACE_SPECIES RATES END ------------------------------------ Reading input data for simulation 1. ------------------------------------ DATABASE C:\Program Files\USGS\Phreeqc Interactive 2.6\phreeqc.dat SOLUTION 1 temp 25 pH 7 pe 4 redox pe units mmol/kgw density 1 Fe 1 S 1 water 1 # kg SOLUTION 2 temp 25 pH 7 pe 4 redox pe units mmol/kgw density 1 Fe(2) 1 S 1 water 1 # kg SOLUTION 3 temp 25 pH 7 pe 4 redox pe units mmol/kgw density 1 Fe(3) 1 S 1 water 1 # kg SOLUTION 4 temp 25 pH 7 pe 4 redox pe units mmol/kgw density 1 Fe 1 S(6) 1 water 1 # kg SOLUTION 5 temp 25 pH 7 pe 4 redox pe units mmol/kgw density 1 Fe 1 S(-2) 1 water 1 # kg SOLUTION 6 temp 25 pH 7 pe 4 redox Fe(2)/Fe(3) units mmol/kgw density 1 Fe(2) 1 Fe(3) 1 S 1 water 1 # kg END ------------------------------------------- Beginning of initial solution calculations. ------------------------------------------- Initial solution 1. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe 1.000e-003 1.000e-003 S 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 3.270e-003 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 1.436e-004 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = -3.993e-004 Percent error, 100*(Cat-|An|)/(Cat+|An|) = -11.99 Iterations = 4 Total H = 1.110131e+002 Total O = 5.551087e+001 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.066e-007 1.001e-007 -6.972 -7.000 -0.027 H+ 1.059e-007 1.000e-007 -6.975 -7.000 -0.025 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(2) 7.444e-004 Fe+2 6.740e-004 5.296e-004 -3.171 -3.276 -0.105 FeSO4 6.857e-005 6.862e-005 -4.164 -4.164 0.000 FeOH+ 1.782e-006 1.675e-006 -5.749 -5.776 -0.027 FeHSO4+ 4.801e-011 4.511e-011 -10.319 -10.346 -0.027 Fe(HS)2 0.000e+000 0.000e+000 -123.301 -123.301 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -185.724 -185.751 -0.027 Fe(3) 2.556e-004 Fe(OH)3 1.392e-004 1.393e-004 -3.856 -3.856 0.000 Fe(OH)2+ 1.151e-004 1.081e-004 -3.939 -3.966 -0.027 Fe(OH)4- 1.352e-006 1.270e-006 -5.869 -5.896 -0.027 FeOH+2 4.189e-008 3.265e-008 -7.378 -7.486 -0.108 FeSO4+ 4.300e-012 4.041e-012 -11.366 -11.394 -0.027 Fe+3 8.476e-013 5.058e-013 -12.072 -12.296 -0.224 Fe2(OH)2+4 7.774e-014 2.870e-014 -13.109 -13.542 -0.433 Fe(SO4)2- 6.855e-014 6.441e-014 -13.164 -13.191 -0.027 Fe3(OH)4+5 3.076e-015 6.483e-016 -14.512 -15.188 -0.676 FeHSO4+2 1.388e-018 1.082e-018 -17.858 -17.966 -0.108 H(0) 1.415e-025 H2 7.074e-026 7.079e-026 -25.150 -25.150 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -42.080 -42.080 0.000 S(-2) 0.000e+000 HS- 0.000e+000 0.000e+000 -64.460 -64.487 -0.027 H2S 0.000e+000 0.000e+000 -64.546 -64.546 0.000 S-2 0.000e+000 0.000e+000 -70.299 -70.405 -0.107 Fe(HS)2 0.000e+000 0.000e+000 -123.301 -123.301 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -185.724 -185.751 -0.027 S(6) 1.000e-003 SO4-2 9.314e-004 7.286e-004 -3.031 -3.137 -0.107 FeSO4 6.857e-005 6.862e-005 -4.164 -4.164 0.000 HSO4- 7.539e-009 7.084e-009 -8.123 -8.150 -0.027 FeHSO4+ 4.801e-011 4.511e-011 -10.319 -10.346 -0.027 FeSO4+ 4.300e-012 4.041e-012 -11.366 -11.394 -0.027 Fe(SO4)2- 6.855e-014 6.441e-014 -13.164 -13.191 -0.027 FeHSO4+2 1.388e-018 1.082e-018 -17.858 -17.966 -0.108 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT Fe(OH)3(a) 3.81 21.72 17.91 Fe(OH)3 FeS(ppt) -56.85 -94.41 -37.56 FeS Goethite 9.70 21.72 12.02 FeOOH H2(g) -22.00 -22.00 0.00 H2 H2O(g) -1.51 -0.00 1.51 H2O H2S(g) -63.55 -105.14 -41.59 H2S Hematite 21.42 43.45 22.03 Fe2O3 Mackinawite -56.12 -94.41 -38.30 FeS Melanterite -4.20 -6.41 -2.21 FeSO4:7H2O O2(g) -39.12 44.00 83.12 O2 Pyrite -91.77 -177.55 -85.78 FeS2 Sulfur -47.43 -83.14 -35.71 S Initial solution 2. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe(2) 1.000e-003 1.000e-003 S 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 3.643e-003 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 2.377e-006 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = -2.377e-006 Percent error, 100*(Cat-|An|)/(Cat+|An|) = -0.07 Iterations = 4 Total H = 1.110124e+002 Total O = 5.551022e+001 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.070e-007 1.001e-007 -6.971 -7.000 -0.029 H+ 1.062e-007 1.000e-007 -6.974 -7.000 -0.026 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(2) 1.000e-003 Fe+2 9.093e-004 7.060e-004 -3.041 -3.151 -0.110 FeSO4 8.835e-005 8.843e-005 -4.054 -4.053 0.000 FeOH+ 2.383e-006 2.232e-006 -5.623 -5.651 -0.028 FeHSO4+ 6.206e-011 5.813e-011 -10.207 -10.236 -0.028 Fe(HS)2 0.000e+000 0.000e+000 -123.206 -123.205 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -185.642 -185.671 -0.028 H(0) 1.415e-025 H2 7.074e-026 7.079e-026 -25.150 -25.150 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -42.080 -42.080 0.000 S(-2) 0.000e+000 HS- 0.000e+000 0.000e+000 -64.473 -64.502 -0.029 H2S 0.000e+000 0.000e+000 -64.561 -64.560 0.000 S-2 0.000e+000 0.000e+000 -70.308 -70.420 -0.112 Fe(HS)2 0.000e+000 0.000e+000 -123.206 -123.205 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -185.642 -185.671 -0.028 S(6) 1.000e-003 SO4-2 9.116e-004 7.044e-004 -3.040 -3.152 -0.112 FeSO4 8.835e-005 8.843e-005 -4.054 -4.053 0.000 HSO4- 7.312e-009 6.848e-009 -8.136 -8.164 -0.028 FeHSO4+ 6.206e-011 5.813e-011 -10.207 -10.236 -0.028 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT FeS(ppt) -56.74 -94.30 -37.56 FeS H2(g) -22.00 -22.00 0.00 H2 H2O(g) -1.51 -0.00 1.51 H2O H2S(g) -63.56 -105.15 -41.59 H2S Mackinawite -56.01 -94.30 -38.30 FeS Melanterite -4.09 -6.30 -2.21 FeSO4:7H2O O2(g) -39.12 44.00 83.12 O2 Pyrite -91.68 -177.46 -85.78 FeS2 Sulfur -47.44 -83.15 -35.71 S Initial solution 3. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe(3) 1.000e-003 1.000e-003 S 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 2.227e-003 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 5.574e-004 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = -1.557e-003 Percent error, 100*(Cat-|An|)/(Cat+|An|) = -63.48 Iterations = 7 Total H = 1.110150e+002 Total O = 5.551277e+001 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.055e-007 1.001e-007 -6.977 -7.000 -0.023 H+ 1.050e-007 1.000e-007 -6.979 -7.000 -0.021 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(3) 1.000e-003 Fe(OH)3 5.470e-004 5.473e-004 -3.262 -3.262 0.000 Fe(OH)2+ 4.476e-004 4.249e-004 -3.349 -3.372 -0.023 Fe(OH)4- 5.258e-006 4.991e-006 -5.279 -5.302 -0.023 FeOH+2 1.580e-007 1.283e-007 -6.801 -6.892 -0.090 FeSO4+ 1.869e-011 1.774e-011 -10.728 -10.751 -0.023 Fe+3 3.077e-012 1.987e-012 -11.512 -11.702 -0.190 Fe2(OH)2+4 1.019e-012 4.431e-013 -11.992 -12.353 -0.362 Fe(SO4)2- 3.329e-013 3.160e-013 -12.478 -12.500 -0.023 Fe3(OH)4+5 1.445e-013 3.933e-014 -12.840 -13.405 -0.565 FeHSO4+2 5.850e-018 4.750e-018 -17.233 -17.323 -0.090 H(0) 1.415e-025 H2 7.076e-026 7.079e-026 -25.150 -25.150 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -42.080 -42.080 0.000 S(-2) 0.000e+000 HS- 0.000e+000 0.000e+000 -64.416 -64.439 -0.023 H2S 0.000e+000 0.000e+000 -64.498 -64.498 0.000 S-2 0.000e+000 0.000e+000 -70.268 -70.357 -0.089 S(6) 1.000e-003 SO4-2 1.000e-003 8.141e-004 -3.000 -3.089 -0.089 HSO4- 8.338e-009 7.915e-009 -8.079 -8.102 -0.023 FeSO4+ 1.869e-011 1.774e-011 -10.728 -10.751 -0.023 Fe(SO4)2- 3.329e-013 3.160e-013 -12.478 -12.500 -0.023 FeHSO4+2 5.850e-018 4.750e-018 -17.233 -17.323 -0.090 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT Fe(OH)3(a) 4.41 9.30 4.89 Fe(OH)3 Goethite 10.30 9.30 -1.00 FeOOH H2(g) -22.00 -22.00 0.00 H2 H2O(g) -1.51 -0.00 1.51 H2O H2S(g) -63.50 -105.09 -41.59 H2S Hematite 22.60 18.60 -4.01 Fe2O3 O2(g) -39.12 44.00 83.12 O2 Sulfur -47.38 -83.09 -35.71 S Initial solution 4. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe 1.000e-003 1.000e-003 S(6) 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 3.270e-003 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 1.436e-004 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = -3.993e-004 Percent error, 100*(Cat-|An|)/(Cat+|An|) = -11.99 Iterations = 4 Total H = 1.110131e+002 Total O = 5.551087e+001 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.066e-007 1.001e-007 -6.972 -7.000 -0.027 H+ 1.059e-007 1.000e-007 -6.975 -7.000 -0.025 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(2) 7.444e-004 Fe+2 6.740e-004 5.296e-004 -3.171 -3.276 -0.105 FeSO4 6.857e-005 6.862e-005 -4.164 -4.164 0.000 FeOH+ 1.782e-006 1.675e-006 -5.749 -5.776 -0.027 FeHSO4+ 4.801e-011 4.511e-011 -10.319 -10.346 -0.027 Fe(3) 2.556e-004 Fe(OH)3 1.392e-004 1.393e-004 -3.856 -3.856 0.000 Fe(OH)2+ 1.151e-004 1.081e-004 -3.939 -3.966 -0.027 Fe(OH)4- 1.352e-006 1.270e-006 -5.869 -5.896 -0.027 FeOH+2 4.189e-008 3.265e-008 -7.378 -7.486 -0.108 FeSO4+ 4.300e-012 4.041e-012 -11.366 -11.394 -0.027 Fe+3 8.476e-013 5.058e-013 -12.072 -12.296 -0.224 Fe2(OH)2+4 7.774e-014 2.870e-014 -13.109 -13.542 -0.433 Fe(SO4)2- 6.855e-014 6.441e-014 -13.164 -13.191 -0.027 Fe3(OH)4+5 3.076e-015 6.483e-016 -14.512 -15.188 -0.676 FeHSO4+2 1.388e-018 1.082e-018 -17.858 -17.966 -0.108 H(0) 1.415e-025 H2 7.074e-026 7.079e-026 -25.150 -25.150 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -42.080 -42.080 0.000 S(6) 1.000e-003 SO4-2 9.314e-004 7.286e-004 -3.031 -3.137 -0.107 FeSO4 6.857e-005 6.862e-005 -4.164 -4.164 0.000 HSO4- 7.539e-009 7.084e-009 -8.123 -8.150 -0.027 FeHSO4+ 4.801e-011 4.511e-011 -10.319 -10.346 -0.027 FeSO4+ 4.300e-012 4.041e-012 -11.366 -11.394 -0.027 Fe(SO4)2- 6.855e-014 6.441e-014 -13.164 -13.191 -0.027 FeHSO4+2 1.388e-018 1.082e-018 -17.858 -17.966 -0.108 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT Fe(OH)3(a) 3.81 21.72 17.91 Fe(OH)3 Goethite 9.70 21.72 12.02 FeOOH H2(g) -22.00 -22.00 0.00 H2 H2O(g) -1.51 -0.00 1.51 H2O Hematite 21.42 43.45 22.03 Fe2O3 Melanterite -4.20 -6.41 -2.21 FeSO4:7H2O O2(g) -39.12 44.00 83.12 O2 Initial solution 5. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe 1.000e-003 1.000e-003 S(-2) 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 8.147e-004 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 1.056e-003 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = 7.851e-004 Percent error, 100*(Cat-|An|)/(Cat+|An|) = 90.01 Iterations = 7 Total H = 1.110139e+002 Total O = 5.550662e+001 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.034e-007 1.001e-007 -6.985 -7.000 -0.014 H+ 1.031e-007 1.000e-007 -6.987 -7.000 -0.013 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(2) 8.411e-004 Fe(HS)2 4.595e-004 4.595e-004 -3.338 -3.338 0.000 Fe+2 3.786e-004 3.335e-004 -3.422 -3.477 -0.055 Fe(HS)3- 2.032e-006 1.968e-006 -5.692 -5.706 -0.014 FeOH+ 1.089e-006 1.055e-006 -5.963 -5.977 -0.014 Fe(3) 1.589e-004 Fe(OH)3 8.769e-005 8.771e-005 -4.057 -4.057 0.000 Fe(OH)2+ 7.032e-005 6.809e-005 -4.153 -4.167 -0.014 Fe(OH)4- 8.261e-007 7.999e-007 -6.083 -6.097 -0.014 FeOH+2 2.339e-008 2.056e-008 -7.631 -7.687 -0.056 Fe+3 4.205e-013 3.185e-013 -12.376 -12.497 -0.121 Fe2(OH)2+4 1.907e-014 1.138e-014 -13.720 -13.944 -0.224 Fe3(OH)4+5 3.626e-016 1.619e-016 -15.441 -15.791 -0.350 H(0) 1.416e-025 H2 7.078e-026 7.079e-026 -25.150 -25.150 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -42.080 -42.080 0.000 S(-2) 1.000e-003 Fe(HS)2 4.595e-004 4.595e-004 -3.338 -3.338 0.000 HS- 4.062e-005 3.932e-005 -4.391 -4.405 -0.014 H2S 3.437e-005 3.438e-005 -4.464 -4.464 0.000 Fe(HS)3- 2.032e-006 1.968e-006 -5.692 -5.706 -0.014 S-2 5.397e-011 4.749e-011 -10.268 -10.323 -0.056 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT Fe(OH)3(a) 3.61 21.52 17.91 Fe(OH)3 FeS(ppt) 3.03 -0.88 -3.92 FeS Goethite 9.50 21.52 12.02 FeOOH H2(g) -22.00 -22.00 0.00 H2 H2O(g) -1.51 -0.00 1.51 H2O H2S(g) -3.47 -11.41 -7.94 H2S Hematite 21.01 43.05 22.03 Fe2O3 Mackinawite 3.77 -0.88 -4.65 FeS O2(g) -39.12 44.00 83.12 O2 Pyrite 28.19 9.71 -18.48 FeS2 Sulfur 12.65 10.59 -2.06 S Initial solution 6. -----------------------------Solution composition------------------------------ Elements Molality Moles Fe(2) 1.000e-003 1.000e-003 Fe(3) 1.000e-003 1.000e-003 S 1.000e-003 1.000e-003 ----------------------------Description of solution---------------------------- pH = 7.000 pe = 4.000 Activity of water = 1.000 Ionic strength = 3.876e-003 Mass of water (kg) = 1.000e+000 Total alkalinity (eq/kg) = 5.559e-004 Total carbon (mol/kg) = 0.000e+000 Total CO2 (mol/kg) = 0.000e+000 Temperature (deg C) = 25.000 Electrical balance (eq) = 4.441e-004 Percent error, 100*(Cat-|An|)/(Cat+|An|) = 10.82 Iterations = 7 Total H = 1.110150e+002 Total O = 5.551277e+001 ---------------------------------Redox couples--------------------------------- Redox couple pe Eh (volts) Fe(2)/Fe(3) 4.4691 0.2644 ----------------------------Distribution of species---------------------------- Log Log Log Species Molality Activity Molality Activity Gamma OH- 1.072e-007 1.001e-007 -6.970 -7.000 -0.030 H+ 1.064e-007 1.000e-007 -6.973 -7.000 -0.027 H2O 5.551e+001 1.000e+000 1.744 -0.000 0.000 Fe(2) 1.000e-003 Fe+2 9.103e-004 7.018e-004 -3.041 -3.154 -0.113 FeSO4 8.729e-005 8.736e-005 -4.059 -4.059 0.000 FeOH+ 2.374e-006 2.219e-006 -5.625 -5.654 -0.029 FeHSO4+ 6.143e-011 5.743e-011 -10.212 -10.241 -0.029 Fe(HS)2 0.000e+000 0.000e+000 -130.720 -130.719 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -196.911 -196.940 -0.029 Fe(3) 1.000e-003 Fe(OH)3 5.431e-004 5.436e-004 -3.265 -3.265 0.000 Fe(OH)2+ 4.514e-004 4.220e-004 -3.345 -3.375 -0.029 Fe(OH)4- 5.303e-006 4.958e-006 -5.275 -5.305 -0.029 FeOH+2 1.669e-007 1.274e-007 -6.778 -6.895 -0.117 FeSO4+ 1.621e-011 1.515e-011 -10.790 -10.820 -0.029 Fe+3 3.439e-012 1.974e-012 -11.464 -11.705 -0.241 Fe2(OH)2+4 1.285e-012 4.372e-013 -11.891 -12.359 -0.468 Fe(SO4)2- 2.482e-013 2.320e-013 -12.605 -12.634 -0.029 Fe3(OH)4+5 2.077e-013 3.855e-014 -12.683 -13.414 -0.731 FeHSO4+2 5.312e-018 4.057e-018 -17.275 -17.392 -0.117 H(0) 1.631e-026 H2 8.154e-027 8.161e-027 -26.089 -26.088 0.000 O(0) 0.000e+000 O2 0.000e+000 0.000e+000 -40.204 -40.204 0.000 S(-2) 0.000e+000 HS- 0.000e+000 0.000e+000 -68.228 -68.258 -0.030 H2S 0.000e+000 0.000e+000 -68.317 -68.316 0.000 S-2 0.000e+000 0.000e+000 -74.061 -74.176 -0.115 Fe(HS)2 0.000e+000 0.000e+000 -130.720 -130.719 0.000 Fe(HS)3- 0.000e+000 0.000e+000 -196.911 -196.940 -0.029 S(6) 1.000e-003 SO4-2 9.127e-004 7.000e-004 -3.040 -3.155 -0.115 FeSO4 8.729e-005 8.736e-005 -4.059 -4.059 0.000 HSO4- 7.280e-009 6.806e-009 -8.138 -8.167 -0.029 FeHSO4+ 6.143e-011 5.743e-011 -10.212 -10.241 -0.029 FeSO4+ 1.621e-011 1.515e-011 -10.790 -10.820 -0.029 Fe(SO4)2- 2.482e-013 2.320e-013 -12.605 -12.634 -0.029 FeHSO4+2 5.312e-018 4.057e-018 -17.275 -17.392 -0.117 ------------------------------Saturation indices------------------------------- Phase SI log IAP log KT Fe(OH)3(a) 4.40 9.30 4.89 Fe(OH)3 FeS(ppt) -60.50 6.10 66.59 FeS Goethite 10.30 9.30 -1.00 FeOOH H2(g) -22.94 3.10 26.04 H2 H2O(g) -1.51 -0.00 1.51 H2O H2S(g) -67.32 -4.75 62.57 H2S Hematite 22.60 18.59 -4.01 Fe2O3 Mackinawite -59.76 6.10 65.86 FeS Melanterite -4.10 -6.31 -2.21 FeSO4:7H2O O2(g) -37.24 -6.20 31.04 O2 Pyrite -98.25 -1.75 96.50 FeS2 Sulfur -50.26 -7.85 42.41 S ------------------ End of simulation. ------------------ ------------------------------------ Reading input data for simulation 2. ------------------------------------ ----------- End of run. -----------