Nitrate
(NO3)-
Nitrite
(NO2)-
Hydroxide
(OH)-
Bromate
(BrO3)-
Perchlorate
(ClO4)-
Chlorate
(ClO3)-
Chlorite
(ClO2)-
Hypochlorite
(ClO)-
Cyanide
(CN)-
Permangate
(MnO4)-
Hydrogen Sulfate
(HSO4)-
Hydrogen Carbonate
Bicarbonate
(HCO3)-
Acetate
(C2H3O2)-
(CH3COO)-
Sulfate
(SO4)2-
Sulfite
(SO3)2-
Carbonate
(CO3)2-
Chromate
(CrO4)2-
Dichromate
(Cr2O7)2-
Oxalate
(C2O4)2-
Peroxide
(O2)2-
Hydrogen Phosphate
(HPO4)2-
Phosphate
(PO4)3-
Arsenate
(AsO4)3-
Ammonium
(NH4)+