NH₄⁺
Ammonium
NO₂⁻
Nitrite
NO₃⁻
Nitrate
SO₃²⁻
Sulfite
SO₄²⁻
Sulfate
OH⁻
Hydroxide
CN⁻
Cyanide
PO₄³⁻
Phosphate
NCS⁻
Thiocyanate
CO₃²⁻
Carbonate
HCO₃⁻
Hydrogen carbonate (bicarbonate)
CIO₂⁻
Chlorite
CIO₃⁻
Chlorate
CIO₄⁻
Perchlorate
C₂H₃O₂⁻
Acetate
MnO₄⁻
Permanganate
Cr₂O₇²⁻
Dichromate
CrO₄²⁻
Chromate
O₂²⁻
Peroxide
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