H2O + 0.0499 mM   KHCO3
+ atmospheric CO2   (pCO2 = 3.408)

pH = 6.92

  (at 25 °C)
Electrical conductivity:   5.9 µS/cm   (info)
Ionic strength:   0.05 mmol/L   (info)
Alkalinity:   0.05 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.05 meq/L   (info)
Redox potential (Eh):   673 mV  

(NOTE: No   preselected minerals   precipitate.)


Elements   (in mM)

C(4) DIC 6.33e-02
K K 4.99e-02
O(0) O(0) 2.76e-10

Aqueous Species   (in mM)

H+ 1.20e-04
OH- 8.45e-05
CO2 1.33e-02
HCO3- 4.99e-02
CO3-2 2.01e-05
KOH 1.44e-09
K+ 4.99e-02
O2 1.38e-10

Minerals   (Ksp values)

Mineral Formula SI Saturation state
K2CO3:1.5H2O K2CO3:1.5H2O -19.37 under-saturated
KMetal K -65.14 under-saturated

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