H2O + 420.0 mM   NaCl
+ 2.0 mM   NaHCO3

pH = 7.78

  (at 25 °C)
Electrical conductivity:   41316.0 µS/cm   (info)
Ionic strength:   421.8 mmol/L   (info)
Alkalinity:   2.0 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   2.0 meq/L   (info)
Redox potential (Eh):   618 mV  



Elements   (in mM)

C(4) DIC 2.00e+00
Na Na 4.22e+02
Cl Cl 4.20e+02
O(0) O(0) 1.07e-10

Aqueous Species   (in mM)

H+ 2.17e-05
OH- 9.12e-04
CO2 4.21e-02
HCO3- 1.73e+00
CO3-2 1.40e-02
NaOH 3.15e-05
Na+ 4.22e+02
NaHCO3 1.86e-01
NaCO3- 2.71e-02
Cl- 4.20e+02
O2 5.33e-11

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Halite NaCl -2.66 under-saturated
Nahcolite NaHCO3 -2.89 under-saturated
Trona NaHCO3:Na2CO3:2H2O -9.17 under-saturated
Natron Na2CO3:10H2O -5.26 under-saturated
Thermonatrite Na2CO3:H2O -6.64 under-saturated
NaMetal Na -56.81 under-saturated

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