H2O + 400.0 mM   NiSO4
+ 16.5 mM   NaOH

pH = 6.07

  (at 25 °C)
Electrical conductivity:   22451.5 µS/cm   (info)
Ionic strength:   639.288 mmol/L   (info)
Alkalinity:   0.005 meq/L   (info)
Total hardness:   783.505 meq/L   (info)
Carbonate hardness:   0.005 meq/L   (info)
Redox potential (Eh):   704 mV  

NOTE:   One  mineral  precipitates.


Elements   (in mM)

Na Na 1.65e+01
S S 4.00e+02
S(6) Sulfate 4.00e+02
Ni Ni 3.92e+02
O(0) O(0) 1.05e-11

Aqueous Species   (in mM)

H+ 1.13e-03
OH- 1.89e-05
NaOH 2.08e-08
Na+ 1.43e+01
NaSO4- 2.21e+00
HSO4- 3.80e-03
SO4-2 1.59e+02
Ni+2 1.55e+02
NiOH+ 1.01e-02
Ni(OH)2 5.45e-06
Ni(OH)3- 9.81e-11
NiSO4 2.36e+02
Ni(SO4)2-2 1.42e+00
O2 5.25e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Ni(OH)2 Ni(OH)2 0.00 8.25e+00 mM  precipitates
Thenardite Na2SO4 -5.16 under-saturated
Mirabilite Na2SO4:10H2O -4.41 under-saturated
Millerite NiS -104.84 under-saturated
Sulfur S -85.64 under-saturated
NaMetal Na -59.75 under-saturated

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