H2O + 20.0 mM   NaHCO3
+ 20.0 mM   CaCl2
+ 3.0 mM   HCl

pH = 6.95

  (at 25 °C)
Electrical conductivity:   5865.3 µS/cm   (info)
Ionic strength:   76.711 mmol/L   (info)
Alkalinity:   16.999 meq/L   (info)
Total hardness:   39.998 meq/L   (info)
Carbonate hardness:   16.999 meq/L   (info)
Redox potential (Eh):   648 mV  



Elements   (in mM)

C(4) DIC 2.00e+01
Ca Ca 2.00e+01
Na Na 2.00e+01
Cl Cl 4.30e+01
O(0) O(0) 6.74e-12

Aqueous Species   (in mM)

H+ 1.36e-04
OH- 1.13e-04
CO2 3.08e+00
HCO3- 1.52e+01
CO3-2 1.21e-02
Ca+2 1.84e+01
CaCO3 6.46e-02
CaHCO3+ 1.50e+00
CaOH+ 1.40e-05
NaOH 2.48e-07
Na+ 1.99e+01
NaHCO3 1.07e-01
NaCO3- 1.86e-03
Cl- 4.30e+01
O2 3.37e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 1.07 super-saturated
Portlandite Ca(OH)2 -11.02 under-saturated
Halite NaCl -4.85 under-saturated
Nahcolite NaHCO3 -3.16 under-saturated
Trona NaHCO3:Na2CO3:2H2O -11.81 under-saturated
Natron Na2CO3:10H2O -7.59 under-saturated
Thermonatrite Na2CO3:H2O -9.02 under-saturated
Aragonite CaCO3 0.93 super-saturated
Vaterite CaCO3 0.51 super-saturated
CaCO3(a) CaCO3 -1.01 under-saturated
Ikaite CaCO3:6H2O -0.79 under-saturated
Hydrophilite CaCl2 -16.80 under-saturated
Antarcticite CaCl2:6H2O -9.15 under-saturated
NaMetal Na -58.61 under-saturated

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