Ammonium
NH4 +
Nitrite
NO2 -
Nitrate
NO3 -
Sulfite
SO3 2-
Sulfate
SO4 2-
Hydrogen sulphate (bisulphate)
HSO4 -
Hydroxide
OH -
Cyanide
CN -
Phosphate
PO4 3-
Hydrogen phosphate
HPO4 2-
Dihydrogen phosphate
H2PO4 -
Carbonate
CO3 2-
Hydrogen carbonate (bicarbonate)
HCO3 -
Hypochlorite
ClO -
Chlorite
ClO2 -
Chlorate
ClO3 -
Perchlorate
ClO4 -
Acetate
C2H3O2 -
Permanganate
MnO4 -
Dichromate
Cr2O7 2-
Chromate
CrO4 2-
Peroxide
O2 2-