H2O + 1000.0 mM   H2O
+ 1000.0 mM   FeHPO4

pH = 7.87

  (at 25 °C)
Electrical conductivity:   6762.5 µS/cm   (info)
Ionic strength:   241.239 mmol/L   (info)
Alkalinity:   943.68 meq/L   (info)
Total hardness:   1926.687 meq/L   (info)
Carbonate hardness:   943.68 meq/L   (info)
Redox potential (Eh):   -311 mV  

NOTE:   Two  minerals  precipitate.


Elements   (in mM)

Fe Fe 9.63e+02
Fe(2) Fe(II) 9.63e+02
Fe(3) Fe(III) 9.85e-07
P P 9.83e+02

Aqueous Species   (in mM)

H+ 1.70e-05
OH- 1.06e-03
Fe+2 4.76e+01
Fe(OH)3- 7.87e-07
FeOH+ 4.68e-01
Fe(OH)2 2.00e-04
FeH2PO4+ 3.50e+01
FeHPO4 8.80e+02
Fe+3 6.48e-17
FeOH+2 1.32e-11
Fe(OH)2+ 1.21e-07
Fe(OH)3 7.89e-07
Fe(OH)4- 7.55e-08
FeH2PO4+2 2.51e-14
FeHPO4+ 4.52e-14
H3PO4 6.48e-06
H2PO4- 4.80e+00
HPO4-2 6.29e+01
PO4-3 1.21e-02
H2PO3- 1.45e-14
H2 3.95e-06

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Fe(OH)3(a) Fe(OH)3 -1.41 under-saturated
Fe(OH)2 Fe(OH)2 -0.00 2.00e+01 mM  precipitates
Strengite FePO4:2H2O -0.00 7.04e-06 mM  precipitates
Goethite FeOOH 4.49 super-saturated
Hematite Fe2O3 10.99 super-saturated
Magnetite Fe3O4 17.15 super-saturated
FeO FeO 0.38 super-saturated
FeMetal Fe -7.30 under-saturated

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