nitrate
NO2 -
nitrate
NO3 -
CHLORITE
ClO2 -
chlorate
ClO3 -
hydroxide
OH -
acetate
C2H3O2 -CH3CO2
carbonate
co3 2-
hydrogen carbonate (bicarbonate)
HCO3
sulfate
SO4 2-
phosphate
PO4 3-
monohydrogen phosphate
HPO4 2-
dihydrogen phosphate
H2PO4 -
ammonium
NH4 +