sulfate ion
SO4^2-
sulfite ion
SO3^2-
hydrogen sulfate ion
HSO4-
thiosulfate ion
S2O3^2-
nitrite ion
NO2-
chlorate ion
ClO3-
perchlorate ion
ClO4-
hydrogen phosphite ion
HPO3^2-
phosphate ion -
PO4^3-
hydrogen phosphate ion
HPO4^2-
dihydrogen phosphate ion
H2PO4-
carbonate ion
CO3^2-
hydrogen carbonate ion
or bicarbonate ion
HCO3-
acetate ion
CH3COO- or C2H3O2-
cyanide ion
CN-
chromate ion
CrO4^2-
dichromate ion
Cr2O7^2-
hydroxide ion
OH-
peroxide ion
O2^2-
permanganate ion
MnO4-
borate ion
BO3^3-
fluoride ion
F-
chloride ion
Cl-
bromide ion
Br-