Sulfite
SO3 -2
Ferrocyanide
Fe(CN)6 -4
Phosphite
PO3 -3
Phosphate
PO4 -3
Ferricyanide
Fe(CN)6 -3
Arsenate
AsO4 -4
Thiosulfate
S2O3 -2
Sulfate
SO4 -2
Silicate
SiO3 -2
Peroxide
O2 -2
Oxalate
C2O4 -2
Hydrogen Phosphate
HPO4 -2
Dichromate
Cr2O7 -2
Chromate
CrO4 -2
Carbonate
CO3 -2
Ammonium
NH4 +1
Acetate (Ethanoate)
C2H3O2 -1
Bicarbonate (Hydrogen Carbonate)
HCO3 -1
Bisulfate (Hydrogen Sulfate)
HSO4 -1
Bisulfite (Hydrogen Sulfite)
HSO3 -1
Bromate
BrO3 -1
Bromite
BrO2 -1
Chlorate
ClO3 -1
Chlorite
ClO2 -1
Cyanide
CN -1
Dihydrogen Phosphate
H2PO4 -1
Hydroxide
OH -1
Hypochlorite
ClO -1
Iodate
IO3 -1
Nitrate
NO3 -1
Nitrite
NO2 -1
Perchlorate
ClO4 -1
Permanganate
MnO4 -1
Thiocynate
SCN -1