LIST OF COMMON IONS: anions

Symbol Name Alternative Symbol Name Alternative

Monovalent (1-)

CH3COO- acetate CN- cyanide

NH2- amide CNO- cyanate

BiO3- bismuthate SCN- thiocyanate

Br- bromide F- fluoride

BrO- hypobromite HCO2- formate

BrO2- bromite H- hydride

BrO3- bromate OH- hydroxide

BrO4- perbromate I- iodide

Cl- chloride NO2- nitrite

ClO- hypochlorite NO3- nitrate

ClO2- chlorite MnO4

- permanganate

ClO3- chlorate

ClO4- perchlorate

HCO3-

hydrogen carbonate

bicarbonate HSO3-

hydrogen sulfite

bisulfite

HC2O4-

hydrogen oxalate

bioxalate HSO4-

hydrogen sulfate

bisulfate

H2PO4-

dihydrogen phosphate

primary phosphate

HC4H4O6-

hydrogen tartrate

bitartrate

H2PO3-

dihydrogen phosphite

primary phosphite

AlO2- aluminate

Divalent (2-)

CO32- carbonate HPO4

2- hydrogen phosphate

secondary phosphate

CrO42- chromate HPO3

2- hydrogen phosphite

secondary phosphite

CrO32- chromite S2- sulfide

Cr2O72- dichromate SO3

2- sulfite

MnO42- manganate SO4

2- sulfate

SiO32- metasilicate S2O3

2- thiosulfate

C2O42- oxalate S4O6

2- tetrathionate

O2- oxide S2O72- pyrosulfate

O22- peroxide C4H4O6

2- tartrate

ZnO22- zincate

Trivalent (3-)

As3- arsenide [Fe(CN)6]3− ferricyanide

AsO43- arsenate N3- nitride

AsO33- arsenite PO3

3- phosphite

BO33- borate PO4

3- phosphate tertiary phosphate

Tetravalent (4-)

C4- carbide SiO44- silicate

[Fe(CN)6]4- ferrocyanide