H2O + 0.9642 mM   NaHCO3
+ 0.0875 mM   NaOH
+ 0.7035 mM   H2SO4

pH = 3.49

  (at 25 °C)
Electrical conductivity:   267.7 µS/cm   (info)
Ionic strength:   2.069 mmol/L   (info)
Alkalinity:   -0.355 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.0 meq/L   (info)
Redox potential (Eh):   163 mV  



Elements   (in mM)

C(4) DIC 9.64e-01
Na Na 1.05e+00
S S 7.04e-01
S(6) Sulfate 7.04e-01
S(4) Sulfite 2.54e-13
S(-2) Sulfide 3.15e-17

Aqueous Species   (in mM)

H+ 3.38e-01
OH- 3.26e-08
CO2 9.63e-01
HCO3- 1.39e-03
CO3-2 2.35e-10
NaOH 5.50e-12
Na+ 1.05e+00
NaHCO3 7.44e-07
NaCO3- 3.76e-12
NaSO4- 2.94e-03
HSO4- 1.84e-02
SO4-2 6.82e-01
H2S 3.15e-17
H2SO3 5.53e-15
HSO3- 2.49e-13
SO3-2 6.05e-17
H2 2.36e-13

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Thenardite Na2SO4 -8.90 under-saturated
Mirabilite Na2SO4:10H2O -8.10 under-saturated
Nahcolite NaHCO3 -8.33 under-saturated
Trona NaHCO3:Na2CO3:2H2O -26.80 under-saturated
Natron Na2CO3:10H2O -17.41 under-saturated
Thermonatrite Na2CO3:H2O -18.84 under-saturated
Sulfur S -11.86 under-saturated
NaMetal Na -51.60 under-saturated

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