H2O + 100.0 mM   Na2SO4

pH = 7.23

  (at 25 °C)
Electrical conductivity:   15594.3 µS/cm   (info)
Ionic strength:   261.315 mmol/L   (info)
Alkalinity:   0.0 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.0 meq/L   (info)
Redox potential (Eh):   660 mV  



Elements   (in mM)

Na Na 2.00e+02
S S 1.00e+02
S(6) Sulfate 1.00e+02
O(0) O(0) 5.63e-10

Aqueous Species   (in mM)

H+ 7.54e-05
OH- 2.45e-04
NaOH 3.94e-06
Na+ 1.81e+02
NaSO4- 1.93e+01
HSO4- 1.73e-04
SO4-2 8.07e+01
O2 2.82e-10

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Thenardite Na2SO4 -3.07 under-saturated
Mirabilite Na2SO4:10H2O -2.30 under-saturated
Sulfur S -90.64 under-saturated
NaMetal Na -57.89 under-saturated

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