← 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 dihydrogen phosphate H₂PO₄⁻ hydrogen sulfate bisulfate HSO₄⁻ hydrogen sulfite bisulfite HSO₃⁻ hydrogen carbonate bicarbonate HCO₃⁻ nitrate NO₃⁻ nitrite NO₂⁻ hypochlorite ClO⁻ chlorite ClO₂⁻ chlorate ClO₃⁻ perchlorate ClO₄⁻ acetate C₂H₃O₂⁻ cyanide CN⁻ hydroxide OH⁻ permanganate MnO₄⁻ hydrogen phosphate HPO₄²⁻ sulfate SO₄²⁻ sulfite SO₃²⁻ carbonate CO₃²⁻ chromate CrO₄²⁻ dichromate Cr₂O₇²⁻ silicate SiO₃²⁻ oxalate C₂O₄²⁻ phosphate PO₄³⁻ phosphite PO₃³⁻ ammonium NH₄⁺