H2O + 0.016 mM   Na2CO3

pH = 9.17

  (at 25 °C)
Electrical conductivity:   5.4 µS/cm   (info)
Ionic strength:   0.033 mmol/L   (info)
Alkalinity:   0.032 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.032 meq/L   (info)
Redox potential (Eh):   526 mV  



Elements   (in mM)

C(4) DIC 1.60e-02
Na Na 3.21e-02
O(0) O(0) 3.03e-11

Aqueous Species   (in mM)

H+ 6.76e-07
OH- 1.50e-02
CO2 2.24e-05
HCO3- 1.50e-02
CO3-2 1.06e-03
NaOH 8.44e-08
Na+ 3.21e-02
NaHCO3 2.66e-07
NaCO3- 6.19e-07
O2 1.51e-11

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Nahcolite NaHCO3 -8.78 under-saturated
Trona NaHCO3:Na2CO3:2H2O -23.51 under-saturated
Natron Na2CO3:10H2O -13.67 under-saturated
Thermonatrite Na2CO3:H2O -15.10 under-saturated
NaMetal Na -59.24 under-saturated

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