Chemistry - Polyatomic Anion Nomenclature

Hypohalite

XO^-

Halite

XO₂^-

Halate

XO₃^-

Perhalate

XO₄^-

Permanganate

MnO₄^-

Peroxide

O₂^2-

Cyanide

CN^-

Hydroxide

OH^-

Ammonium (CATION EXCEPTION)

NH₄⁺

Acetate 

C₂H₃O₂^-

Oxalate

C₂O₄^2-

Thiosulfate

S₂O₃^3-

Carbonate

CO₃^2-

Hydrogen Carbonate

HCO₃^-

Sulfate

SO₄^2-

Sulfite

SO₃^2-

Hydrogen Sulfate

HSO₄^-

Nitrate

NO₃^-

Nitrite

NO₂^-

Phosphate

PO₄^3-

Hydrogen Phosphate

HPO₄^2-

Dihydrogen Phosphate

H₂PO₄^-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-