Binary Ionic compounds common identification

ammonium

NH₄⁺

hydroxide

^–OH

acetate

C₂H₃O₂^–

nitrate

NO₃^–

nitrite

NO₂^–

cyanide

CN^–

permanganate

MnO₄^–

peroxide

O₂^2–

thiosulfate

S₂O₃^2–

hypochlorite

ClO^–

chlorite

ClO₂^–

chlorate

ClO₃^–

perchlorate

ClO₄^–

sulfate

SO₄^2–

hydrogen sulfate/bisulfate

HSO₄^–

sulfite

SO₃^2–

hydrogen sulfite/bisulfite

HSO₃^–

CO₃^2–

carbonate

hydrogen carbonate/bicarbonate

HCO₃^–

chromate

CrO₄^2–

dichromate

Cr₂O₇^2–

arsenate

AsO₄^3–

phosphite

PO₃^3–

phosphate

PO₄^3–

hydrogen phosphate/biphosphate

HPO₄^2–

dihydrogen phosphate

H₂PO₄^–