H2O + 27.0 mM   H2SO4
+ 34.0 mM   Ca(OH)2
+ 25.0 mM   Ba(OH)2
+ atmospheric CO2   (pCO2 = 3.408)

pH = 7.97

  (at 25 °C)
Electrical conductivity:   459.6 µS/cm   (info)
Ionic strength:   7.61 mmol/L   (info)
Alkalinity:   0.63 meq/L   (info)
Total hardness:   4.624 meq/L   (info)
Carbonate hardness:   0.63 meq/L   (info)
Redox potential (Eh):   580 mV  

NOTE:   Two  minerals  precipitate.


Elements   (in mM)

C(4) DIC 6.34e-01
Ca Ca 2.31e+00
S S 2.00e+00
S(6) Sulfate 2.00e+00
Ba Ba 1.85e-04
O(0) O(0) 1.89e-12

Aqueous Species   (in mM)

H+ 1.17e-05
OH- 1.02e-03
CO2 1.33e-02
HCO3- 6.01e-01
CO3-2 3.42e-03
Ca+2 1.97e+00
CaSO4 3.22e-01
CaCO3 5.54e-03
CaHSO4+ 2.23e-08
CaHCO3+ 1.06e-02
CaOH+ 2.33e-05
HSO4- 1.34e-06
SO4-2 1.67e+00
Ba+2 1.31e-04
BaOH+ 3.15e-10
BaCO3 1.13e-07
BaHCO3+ 5.29e-07
BaSO4 5.36e-05
O2 9.46e-13

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 0.00 3.17e+01 mM  precipitates
Gypsum CaSO4:2H2O -1.21 under-saturated
Portlandite Ca(OH)2 -9.72 under-saturated
Barite BaSO4 0.00 2.50e+01 mM  precipitates
Witherite BaCO3 -4.10 under-saturated
Ba(OH)2:8H2O Ba(OH)2:8H2O -15.59 under-saturated
Aragonite CaCO3 -0.14 under-saturated
Vaterite CaCO3 -0.57 under-saturated
CaCO3(a) CaCO3 -2.08 under-saturated
Ikaite CaCO3:6H2O -1.86 under-saturated
Anhydrite CaSO4 -1.43 under-saturated
BaS BaS -134.62 under-saturated
Sulfur S -89.64 under-saturated

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