H2O + 0.4717 mM   Na2CO3

pH = 10.33

  (at 25 °C)
Electrical conductivity:   131.6 µS/cm   (info)
Ionic strength:   1.187 mmol/L   (info)
Alkalinity:   0.943 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.943 meq/L   (info)
Redox potential (Eh):   446 mV  



Elements   (in mM)

C(4) DIC 4.72e-01
Na Na 9.43e-01
O(0) O(0) 4.61e-12

Aqueous Species   (in mM)

H+ 4.88e-08
OH- 2.21e-01
CO2 2.25e-05
HCO3- 2.21e-01
CO3-2 2.47e-01
NaOH 3.42e-05
Na+ 9.40e-01
NaHCO3 1.08e-04
NaCO3- 3.71e-03
O2 2.31e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Nahcolite NaHCO3 -6.17 under-saturated
Trona NaHCO3:Na2CO3:2H2O -15.68 under-saturated
Natron Na2CO3:10H2O -8.45 under-saturated
Thermonatrite Na2CO3:H2O -9.89 under-saturated
NaMetal Na -56.43 under-saturated

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