H2O + 15.0 mM   MgSO4
+ 30.9 mM   NaOH

pH = 10.9

  (at 25 °C)
Electrical conductivity:   3196.0 µS/cm   (info)
Ionic strength:   43.954 mmol/L   (info)
Alkalinity:   0.984 meq/L   (info)
Total hardness:   0.084 meq/L   (info)
Carbonate hardness:   0.984 meq/L   (info)
Redox potential (Eh):   404 mV  

NOTE:   One  mineral  precipitates.


Elements   (in mM)

Mg Mg 4.21e-02
Na Na 3.09e+01
S S 1.50e+01
S(6) Sulfate 1.50e+01
O(0) O(0) 1.34e-12

Aqueous Species   (in mM)

H+ 1.45e-08
OH- 9.77e-01
Mg+2 2.16e-02
MgOH+ 3.72e-03
MgSO4 1.68e-02
NaOH 3.54e-03
Na+ 2.99e+01
NaSO4- 9.97e-01
HSO4- 9.81e-09
SO4-2 1.40e+01
O2 6.70e-13

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Brucite Mg(OH)2 0.00 1.50e+01 mM  precipitates
Thenardite Na2SO4 -5.03 under-saturated
Mirabilite Na2SO4:10H2O -4.23 under-saturated
Epsomite MgSO4:7H2O -5.00 under-saturated
Sulfur S -94.54 under-saturated
MgMetal Mg -98.10 under-saturated
NaMetal Na -54.28 under-saturated

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