← Polyatomic Ions Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Cyanide CN⁻ Bromate BrO₃⁻ Hydroxide OH⁻ Nitrite NO₂⁻ Nitrate NO₃⁻ Phosphate PO₄³⁻ Hypochlorite ClO⁻ Chlorite ClO₂⁻ Chlorate ClO₃⁻ Perchlorate ClO₄⁻ Ammonium NH₄⁺ Carbonate CO₃²⁻ Chromate CrO₄²⁻ Permanganate MnO₄⁻ Sulfate SO₄²⁻ Sulfite SO₃²⁻ Acetate C₂H₃O₂⁻ Dichromate Cr₂O₇²⁻ Arsenate AsO₄³⁻ Peroxide O₂²⁻ Dihydrogen Phosphate H₂PO₄⁻ Hydrogen Sulfate HSO₄⁻ Oxalate C₂O₄²⁻ Hydrogen Carbonate HCO₃⁻ Hydrogen Phosphate HPO₄²⁻