H2O + 1.0 mM   (NH4)2SO4
+ 1.0 mM   Al(NO3)3
+ 1.0 mM   Al(OH)3

pH = 5.59

  (at 25 °C)
Electrical conductivity:   482.4 µS/cm   (info)
Ionic strength:   6.459 mmol/L   (info)
Alkalinity:   3.0 meq/L   (info)
Total hardness:   6.0 meq/L   (info)
Carbonate hardness:   3.0 meq/L   (info)
Redox potential (Eh):   727 mV  



Elements   (in mM)

S S 1.00e+00
S(6) Sulfate 1.00e+00
Al Al 2.00e+00
Amm Ammonium 2.00e+00
N(5) Nitrate 3.00e+00
O(0) O(0) 5.39e-12

Aqueous Species   (in mM)

H+ 2.78e-03
OH- 4.24e-06
Al+3 1.70e-01
AlOH+2 4.60e-01
Al(OH)2+ 1.09e+00
Al(OH)3 5.76e-02
Al(OH)4- 4.59e-02
AlSO4+ 1.70e-01
Al(SO4)2- 3.12e-03
AlHSO4+2 5.02e-08
NH4+ 1.98e+00
NH3 4.04e-04
NH4SO4- 1.48e-02
HNO3 3.52e-07
NO3- 3.00e+00
HSO4- 1.58e-04
SO4-2 8.08e-01
O2 2.69e-12

Minerals   (Ksp values)

Mineral Formula SI Saturation state
Al(OH)3(a) Al(OH)3 1.90 super-saturated
Diaspore AlOOH 5.82 super-saturated
Boehmite AlOOH 4.12 super-saturated
Gibbsite Al(OH)3 4.59 super-saturated
Jurbanite AlOHSO4 1.51 super-saturated
Sulfur S -85.87 under-saturated
AlMetal Al -126.29 under-saturated

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