H2O + 34.0 mM   Na2B4O7:10H2O
+ 50.0 mM   H3PO4
+ 20.0 mM   CoCO3

pH = 6.69

  (at 25 °C)
Electrical conductivity:   4299.6 µS/cm   (info)
Ionic strength:   88.435 mmol/L   (info)
Alkalinity:   24.169 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   24.169 meq/L   (info)
Redox potential (Eh):   659 mV  

NOTE:   One  mineral  precipitates.


Elements   (in mM)

C(4) DIC 3.11e+00
Na Na 6.78e+01
P P 4.98e+01
B B 1.36e+02
Co Co 3.11e+00
Co(2) Co(2) 3.11e+00
Co(3) Co(3) 1.43e-16
O(0) O(0) 3.46e-12

Aqueous Species   (in mM)

H+ 2.44e-04
OH- 6.39e-05
CO2 7.90e-01
HCO3- 2.22e+00
CO3-2 1.02e-03
NaOH 4.62e-07
Na+ 6.69e+01
NaHCO3 5.13e-02
NaCO3- 5.05e-04
NaHPO4- 8.81e-01
H3PO4 6.27e-04
H2PO4- 2.85e+01
HPO4-2 1.84e+01
PO4-3 1.43e-04
H3BO3 1.35e+02
H2BO3- 5.19e-01
Co+2 1.04e+00
CoOH+ 3.59e-04
Co(OH)2 9.96e-07
Co(OH)3- 1.40e-12
Co2OH+3 7.53e-08
Co4(OH)4+4 2.19e-13
CoOOH- 3.52e-13
CoOH+2 1.43e-16
CoCO3 1.77e-03
CoHCO3+ 4.99e-02
O2 1.73e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Nahcolite NaHCO3 -3.48 under-saturated
Trona NaHCO3:Na2CO3:2H2O -12.18 under-saturated
Natron Na2CO3:10H2O -7.65 under-saturated
Thermonatrite Na2CO3:H2O -9.07 under-saturated
Co(OH)2 Co(OH)2 -3.30 under-saturated
CoCO3 CoCO3 0.00 1.69e+01 mM  precipitates
Na3PO4(cr) Na3PO4 -15.61 under-saturated
Co(OH)3 Co(OH)3 -2.47 under-saturated
CoHPO4 CoHPO4 0.95 super-saturated
Co3(PO4)2 Co3(PO4)2 8.27 super-saturated
NaMetal Na -58.27 under-saturated

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