Sulfate
SO4 (2-)
Hydroxide
OH (-)
Nitrate
NO3 (-)
Carbonate
CO3 (2-)
Hydrogencarbonate
HCO3 (-)
Ammonium
NH4 (+)
Nitrite
NO2 (-)
Sulfite
SO3 (2-)
Phosphate
PO4 (3-)
Hypochlorite
CIO (-)
Chromate
CrO4 (2-)
Dichromate
Cr2O7 (2-)
Permanganate or manganate (VII)
MnO4 (-)
Thiosulfate
S2O3 (2-)
Hydrogensulfate
HSO4 (-)
Chlorate
ClO3 (-)