Acetate
C₂H₃O₂⁻
Ammonium
NH₄⁺
Bicarbonate
HCO₃⁻
Bisulfate
HSO₄⁻
Bisulfide
HS⁻
Bisulfite
HSO₃⁻
Bromate
BrO₃⁻
Bromite
BrO₂⁻
Carbonate
CO₃⁻²
Chlorate
ClO₃⁻
Chlorite
ClO₂⁻
Chromate (yellow)
CrO₄⁻²
Cyanide
CN⁻
Dichromate (orange)
Cr₂O₇²⁻
Hydronium
H₃O⁺
Hydroxide
OH⁻
Hypobromite
BrO⁻
Hypochlorite
ClO⁻
Hypoiodite
IO⁻
Iodate
IO₃⁻
Iodite
IO₂⁻
Nitrite
NO₂⁻
Oxalate
C₂O₄²⁻
Perbromate
BrO₄⁻
Perchlorate
ClO₄⁻
Periodate
IO₄⁻
Permanganate (purple)
MnO₄⁻
Peroxide
O₂²⁻
Phosphate
PO₄³⁻
Phosphite
PO₃³⁻
Sulfate
SO₄²⁻
Sulfite
SO₃²⁻
Thiocyanate
SCN⁻
Thiosulfate
S₂O₃²⁻