H2O + 1.1547 mM   NaHCO3
+ 0.6831 mM   H2SO4
+ 0.6748 mM   Ca(OH)2

pH = 7.94

  (at 25 °C)
Electrical conductivity:   261.3 µS/cm   (info)
Ionic strength:   3.651 mmol/L   (info)
Alkalinity:   1.138 meq/L   (info)
Total hardness:   1.35 meq/L   (info)
Carbonate hardness:   1.138 meq/L   (info)
Redox potential (Eh):   582 mV  

(NOTE: No   preselected minerals   precipitate.)


Elements   (in mM)

C(4) DIC 1.15e+00
Ca Ca 6.75e-01
Na Na 1.15e+00
S S 6.83e-01
S(6) Sulfate 6.83e-01
O(0) O(0) 2.11e-12

Aqueous Species   (in mM)

H+ 1.21e-05
OH- 9.40e-04
CO2 2.67e-02
HCO3- 1.11e+00
CO3-2 5.55e-03
Ca+2 6.18e-01
CaSO4 4.66e-02
CaCO3 3.44e-03
CaHSO4+ 3.32e-09
CaHCO3+ 6.77e-03
CaOH+ 7.43e-06
NaOH 1.69e-07
Na+ 1.15e+00
NaHCO3 6.32e-04
NaCO3- 9.20e-05
NaSO4- 2.82e-03
HSO4- 5.78e-07
SO4-2 6.34e-01
O2 1.05e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 -0.21 under-saturated
Gypsum CaSO4:2H2O -2.05 under-saturated
Portlandite Ca(OH)2 -10.23 under-saturated
Thenardite Na2SO4 -8.89 under-saturated
Mirabilite Na2SO4:10H2O -8.09 under-saturated
Nahcolite NaHCO3 -5.40 under-saturated
Trona NaHCO3:Na2CO3:2H2O -16.46 under-saturated
Natron Na2CO3:10H2O -9.99 under-saturated
Thermonatrite Na2CO3:H2O -11.43 under-saturated
Aragonite CaCO3 -0.35 under-saturated
Vaterite CaCO3 -0.77 under-saturated
CaCO3(a) CaCO3 -2.29 under-saturated
Ikaite CaCO3:6H2O -2.07 under-saturated
Anhydrite CaSO4 -2.27 under-saturated
Glauberite Na2Ca(SO4)2 -10.41 under-saturated
Sulfur S -90.04 under-saturated
NaMetal Na -58.65 under-saturated

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