H2O + 15.73 mM   Na2CO3

pH = 11.04

  (at 25 °C)
Electrical conductivity:   2900.8 µS/cm   (info)
Ionic strength:   39.835 mmol/L   (info)
Alkalinity:   31.461 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   31.461 meq/L   (info)
Redox potential (Eh):   399 mV  



Elements   (in mM)

C(4) DIC 1.57e+01
Na Na 3.15e+01
O(0) O(0) 2.28e-12

Aqueous Species   (in mM)

H+ 1.06e-08
OH- 1.33e+00
CO2 2.25e-05
HCO3- 1.32e+00
CO3-2 1.14e+01
NaOH 4.64e-03
Na+ 2.84e+01
NaHCO3 1.47e-02
NaCO3- 3.00e+00
O2 1.14e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Nahcolite NaHCO3 -4.03 under-saturated
Trona NaHCO3:Na2CO3:2H2O -9.28 under-saturated
Natron Na2CO3:10H2O -4.18 under-saturated
Thermonatrite Na2CO3:H2O -5.62 under-saturated
NaMetal Na -54.22 under-saturated

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