H2O + 0.0004 mM   H3PO4

pH = 6.33

  (at 25 °C)
Electrical conductivity:   0.2 µS/cm   (info)
Ionic strength:   0.001 mmol/L   (info)
Alkalinity:   -0.0 meq/L   (info)
Total hardness:   0.0 meq/L   (info)
Carbonate hardness:   0.0 meq/L   (info)
Redox potential (Eh):   682 mV  



Elements   (in mM)

P P 4.03e-04
O(0) O(0) 4.68e-12

Aqueous Species   (in mM)

H+ 4.71e-04
OH- 2.13e-05
H3PO4 2.31e-08
H2PO4- 3.56e-04
HPO4-2 4.66e-05
PO4-3 4.46e-11
O2 2.34e-12

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