Ammonium
NH₄⁺
acetate
C₂H₃O₂⁻
bicarbonate (hydrogen carbonate)
HCO₃⁻
bisulfate (hydrogen sulfate)
HSO₄⁻
Bromate
BrO₃⁻
Perchlorate
ClO₄⁻
Chlorate
ClO₃⁻
Chlorite
ClO₂⁻
Hypochlorite
ClO⁻
Cyanide
CN⁻
Thiocyanate
SCN⁻
Hydroxide
OH⁻
Periodate
IO₄⁻
Iodate
IO₃⁻
Nitrate
NO₃⁻
Nitrite
NO₂⁻
Permanganate
MnO₄⁻
biphosphate (hydrogen phosphate)
HPO₄⁻²
Carbonate
CO₃⁻²
Chromate
CrO₄⁻²
Dichromate
Cr₂O₇⁻²
Oxalate
C₂O₄⁻²
Peroxide
O₂⁻²
Sulfate
SO₄⁻²
Sulfite
SO₃⁻²
Thiosulfate
S₂O₃⁻²
Phosphate
PO₄⁻³
Phosphite
PO₃⁻³
Silicate
SiO₃⁻²
Chromium 2&3
Cr Cr
Cobalt 2&3
Co Co
Copper 1&2
Cu Cu
Iron 2&3
Fe Fe
Lead 2&4
Pb Pb
Manganese 2&3
Mn Mn
Mercury 1&2
Hg Hg
Nickel 2&3
Ni Ni
Tin 2&4
Sn Sn
Gold 1&3
Au Au