ammonium
NH4+
nitrite
NO2-
nitrate
NO3-
sulfite
SO32-
sulfate
SO42-
hydrogen sulfate (bisulfate)
HSO4+
hydroxide
OH-
cyanide
CN-
phosphate
PO43-
hydrogen phosphate
HPO42-
dihydrogen phosphate
H2PO4-
carbonate
CO32-
hydrogen carbonate (bicarbonate)
HCO3-
hypochlorite
ClO-
chlorite
ClO2-
chlorate
ClO3-
perchlorate
ClO4-
acetate
C2H3O2-
permanganate
MnO4-
dichromate
Cr2O72-
chromate
CrO42-
peroxide
O22-