H2O + 0.0001 mM   Na2CO3
+ 0.027 mM   NaHCO3

pH = 7.9

  (at 25 °C)
Electrical conductivity:   2.7 µS/cm   (info)
Ionic strength:   0.027 mmol/L   (info)
Alkalinity:   0.027 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.027 meq/L   (info)
Redox potential (Eh):   614 mV  



Elements   (in mM)

C(4) DIC 2.72e-02
Na Na 2.73e-02
O(0) O(0) 2.16e-10

Aqueous Species   (in mM)

H+ 1.27e-05
OH- 7.95e-04
CO2 7.45e-04
HCO3- 2.63e-02
CO3-2 9.93e-05
NaOH 3.81e-09
Na+ 2.73e-02
NaHCO3 3.99e-07
NaCO3- 4.93e-08
O2 1.08e-10

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Nahcolite NaHCO3 -8.60 under-saturated
Trona NaHCO3:Na2CO3:2H2O -24.50 under-saturated
Natron Na2CO3:10H2O -14.84 under-saturated
Thermonatrite Na2CO3:H2O -16.27 under-saturated
NaMetal Na -60.80 under-saturated

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