Ammonium
NH4+
Nitrite
NO2-
Nitrate
NO3-
Sulfite
SO3 2-
Sulfate
SO4 2-
Hydrogen sulfate
HSO4-
Hydroxide
OH-
Cyanide
Cn-
Phosphate
PO4 3-
Hydrogen Phosphate
HPO4 2-
Dihydrogen Phosphate
H2PO4-
Thiocyanate
NCS-
Carbonate
CO3 2-
Hydrogen carbonate
HCO3 -
Hypochlorite
CLO-
Chlorite
CLO2-
Chlorate
CLO3 -
Perchlorate
CLO4-
Acetate
C2H3O2-
Permanganate
MnO4-
Dichromate
Cr2O7 2-
Chromate
CrO4 2-
Peroxide
O2 2-
Oxalate
C2O4 2-