H2O + 1.0 mM   Cu(OH)2
+ 2.0 mM   NaOH
+ 1.0 mM   Ca(OH)2
+ atmospheric CO2   (pCO2 = 3.408)

pH = 8.54

  (at 25 °C)
Electrical conductivity:   208.9 µS/cm   (info)
Ionic strength:   2.41 mmol/L   (info)
Alkalinity:   2.283 meq/L   (info)
Total hardness:   0.283 meq/L   (info)
Carbonate hardness:   2.283 meq/L   (info)
Redox potential (Eh):   518 mV  

NOTE:   Two  minerals  precipitate.


Elements   (in mM)

C(4) DIC 2.23e+00
Ca Ca 1.32e-01
Na Na 2.00e+00
Cu Cu 9.82e-03
Cu(1) Cu(I) 3.54e-12
Cu(2) Cu(II) 9.82e-03
O(0) O(0) 2.55e-14

Aqueous Species   (in mM)

H+ 3.04e-06
OH- 3.66e-03
CO2 1.33e-02
HCO3- 2.16e+00
CO3-2 4.11e-02
Ca+2 1.23e-01
CaCO3 5.55e-03
CaHCO3+ 2.74e-03
CaOH+ 6.03e-06
NaOH 1.16e-06
Na+ 2.00e+00
NaHCO3 2.18e-03
NaCO3- 1.23e-03
Cu+2 4.50e-06
CuOH+ 1.33e-05
Cu(OH)2 9.12e-03
Cu(OH)3- 2.01e-07
Cu(OH)4-2 1.63e-11
Cu2(OH)2+2 8.65e-08
CuCO3 6.50e-04
Cu(CO3)2-2 3.38e-05
CuHCO3+ 3.95e-06
Cu+ 3.54e-12
O2 1.27e-14

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Calcite CaCO3 0.00 8.68e-01 mM  precipitates
Portlandite Ca(OH)2 -9.72 under-saturated
Cu(OH)2 Cu(OH)2 -0.00 9.90e-01 mM  precipitates
Nahcolite NaHCO3 -4.86 under-saturated
Trona NaHCO3:Na2CO3:2H2O -14.54 under-saturated
Natron Na2CO3:10H2O -8.61 under-saturated
Thermonatrite Na2CO3:H2O -10.05 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
CuCO3 CuCO3 -3.29 under-saturated
Tenorite CuO 1.02 super-saturated
Malachite Cu2(OH)2CO3 0.90 super-saturated
Azurite Cu3(OH)2(CO3)2 -0.29 under-saturated
NaMetal Na -57.33 under-saturated
CuMetal Cu -14.47 under-saturated

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