H2O + 990.0 mM   H2SO4
+ 2000.0 mM   NaHCO3
+ atmospheric CO2   (pCO2 = 3.408)

pH = 8.86

  (at 25 °C)
Electrical conductivity:   80126.5 µS/cm   (info)
Ionic strength:   1907.6 mmol/L   (info)
Alkalinity:   19.309 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   19.309 meq/L   (info)
Redox potential (Eh):   540 mV  

(NOTE: No   preselected minerals   precipitate.)


Elements   (in mM)

C(4) DIC 1.38e+01
Na Na 1.93e+03
S S 9.56e+02
S(6) Sulfate 9.56e+02
O(0) O(0) 8.60e-12

Aqueous Species   (in mM)

H+ 1.91e-06
OH- 1.30e-02
CO2 8.58e-03
HCO3- 6.55e+00
CO3-2 9.07e-01
NaOH 1.38e-03
Na+ 1.44e+03
NaHCO3 1.67e+00
NaCO3- 4.63e+00
NaSO4- 4.87e+02
HSO4- 1.24e-05
SO4-2 4.69e+02
O2 4.30e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Thenardite Na2SO4 -0.81 under-saturated
Mirabilite Na2SO4:10H2O -0.19 under-saturated
Nahcolite NaHCO3 -1.79 under-saturated
Trona NaHCO3:Na2CO3:2H2O -5.34 under-saturated
Natron Na2CO3:10H2O -2.63 under-saturated
Thermonatrite Na2CO3:H2O -3.90 under-saturated
Sulfur S -91.01 under-saturated
NaMetal Na -54.93 under-saturated

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