H2O + 97.0 mM   K2HPO4
+ 45.7 mM   KH2PO4
+ atmospheric CO2   (pCO2 = 3.408)

pH = 7.0

  (at 25 °C)
Electrical conductivity:   18332.2 µS/cm   (info)
Ionic strength:   319.726 mmol/L   (info)
Alkalinity:   97.0 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   97.0 meq/L   (info)
Redox potential (Eh):   -83 mV  



Elements   (in mM)

C(4) DIC 9.42e-02
K K 2.40e+02
P P 1.43e+02

Aqueous Species   (in mM)

H+ 1.29e-04
OH- 1.48e-04
CO2 1.24e-02
HCO3- 8.17e-02
CO3-2 1.03e-04
KOH 5.38e-06
K+ 2.31e+02
KHPO4- 8.45e+00
H3PO4 4.50e-04
H2PO4- 4.58e+01
HPO4-2 8.85e+01
PO4-3 2.66e-03
H2 4.12e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
K2CO3:1.5H2O K2CO3:1.5H2O -12.23 under-saturated
KMetal K -48.87 under-saturated

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