H2O + 100.0 mM   Fe(NO3)3
+ 75.0 mM   NH3
+ 75.0 mM   HF

pH = 1.99

  (at 25 °C)
Electrical conductivity:   24288.4 µS/cm   (info)
Ionic strength:   446.815 mmol/L   (info)
Alkalinity:   -200.049 meq/L   (info)
Total hardness:   300.074 meq/L   (info)
Carbonate hardness:   0.0 meq/L   (info)
Redox potential (Eh):   1046 mV  



Elements   (in mM)

Fe Fe 1.00e+02
Fe(2) Fe(II) 1.33e-04
Fe(3) Fe(III) 1.00e+02
Amm Ammonium 7.50e+01
N(5) Nitrate 3.00e+02
F F 7.50e+01
O(0) O(0) 6.67e-05

Aqueous Species   (in mM)

H+ 1.35e+01
OH- 1.49e-09
Fe+2 1.33e-04
FeOH+ 1.52e-12
FeF+ 2.75e-09
Fe+3 1.69e+01
FeOH+2 4.34e+00
Fe(OH)2+ 4.41e-02
Fe(OH)3 3.43e-07
Fe(OH)4- 4.75e-14
Fe2(OH)2+4 3.80e+00
Fe3(OH)4+5 4.09e-01
FeF+2 6.50e+01
FeF2+ 4.92e+00
FeF3 2.83e-02
NH4+ 7.50e+01
NH3 3.02e-06
HNO3 9.64e-02
NO3- 3.00e+02
F- 9.11e-03
HF 8.19e-02
HF2- 3.17e-06
O2 3.34e-05

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Fe(OH)3(a) Fe(OH)3 -1.75 under-saturated
Fe(OH)2 Fe(OH)2 -17.40 under-saturated
Goethite FeOOH 4.14 super-saturated
Hematite Fe2O3 10.30 super-saturated
Magnetite Fe3O4 -0.94 under-saturated
FeO FeO -17.02 under-saturated
FeMetal Fe -58.80 under-saturated

Disclaimer:   The pH calculator has been tested with great care. Nevertheless, the results are provided without warranty.