H2O + 4.1063 mM   CaCO3
+ atmospheric CO2   (pCO2 = 3.408)

pH = 8.22

  (at 25 °C)
Electrical conductivity:   103.3 µS/cm   (info)
Ionic strength:   1.571 mmol/L   (info)
Alkalinity:   1.06 meq/L   (info)
Total hardness:   1.06 meq/L   (info)
Carbonate hardness:   1.06 meq/L   (info)
Redox potential (Eh):   570 mV  

NOTE:   One  mineral  precipitates.


Elements   (in mM)

C(4) DIC 1.06e+00
Ca Ca 5.30e-01
O(0) O(0) 4.10e-12

Aqueous Species   (in mM)

H+ 6.30e-06
OH- 1.73e-03
CO2 1.33e-02
HCO3- 1.02e+00
CO3-2 9.05e-03
Ca+2 5.19e-01
CaCO3 5.55e-03
CaHCO3+ 5.68e-03
CaOH+ 1.25e-05
O2 2.05e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 0.00 3.58e+00 mM  precipitates
Portlandite Ca(OH)2 -9.72 under-saturated
Aragonite CaCO3 -0.14 under-saturated
Vaterite CaCO3 -0.57 under-saturated
CaCO3(a) CaCO3 -2.08 under-saturated
Ikaite CaCO3:6H2O -1.86 under-saturated

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