H2O + 0.0749 mM   CaCO3
+ 0.0699 mM   CaCO3
+ 0.0799 mM   CaCO3

pH = 10.09

  (at 25 °C)
Electrical conductivity:   63.5 µS/cm   (info)
Ionic strength:   0.688 mmol/L   (info)
Alkalinity:   0.45 meq/L   (info)
Total hardness:   0.45 meq/L   (info)
Carbonate hardness:   0.45 meq/L   (info)
Redox potential (Eh):   460 mV  



Elements   (in mM)

C(4) DIC 2.25e-01
Ca Ca 2.25e-01
O(0) O(0) 4.61e-12

Aqueous Species   (in mM)

H+ 8.47e-08
OH- 1.25e-01
CO2 2.25e-05
HCO3- 1.25e-01
CO3-2 7.81e-02
Ca+2 2.03e-01
CaCO3 2.10e-02
CaHCO3+ 2.89e-04
CaOH+ 3.75e-04
O2 2.31e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 0.58 super-saturated
Portlandite Ca(OH)2 -6.37 under-saturated
Aragonite CaCO3 0.43 super-saturated
Vaterite CaCO3 0.01 super-saturated
CaCO3(a) CaCO3 -1.50 under-saturated
Ikaite CaCO3:6H2O -1.28 under-saturated

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