Common Polyatomic Ions
ordered according to charge and ion family
|
+1 CHARGE
|
-1 CHARGE
|
-2 CHARGE
|
-3 CHARGE
|
-4 CHARGE
|
| ion
| name
| ion
| name
| ion
| name
| ion
| name
| ion
| name
|
| NH4+ |
ammonium |
H2PO3- |
dihydrogen phosphite |
HPO32- |
hydrogen phosphite |
PO33- |
phosphite |
P2O74- |
pyrophosphate |
| H3O+ |
hydronium |
H2PO4- |
dihydrogen phosphate |
HPO42- |
hydrogen phosphate |
PO43- |
phosphate |
|
|
| Hg22+ |
mercury(I) |
HCO3- |
hydrogen carbonate |
CO32- |
carbonate |
PO23- |
hypophosphite |
|
|
|
|
HSO3- |
hydrogen sulfite |
SO32- |
sulfite |
AsO33- |
arsenite |
|
|
|
|
HSO4- |
hydrogen sulfate |
SO42- |
sulfate |
AsO43- |
arsenate |
|
|
|
|
NO2- |
nitrite |
S2O32- |
thiosulfate |
|
|
|
|
|
|
NO3- |
nitrate |
SiO32- |
silicate |
|
|
|
|
|
|
OH- |
hydroxide |
C22- |
carbide |
|
|
|
|
|
|
CH3COO- |
acetate |
C2O42- |
oxalate |
|
|
|
|
|
|
CrO2- |
chromite |
CrO42- |
chromate |
|
|
|
|
|
|
CN- |
cyanide |
Cr2O72- |
dichromate |
|
|
|
|
|
|
CNO- |
cyanate |
C4H4O62- |
tartrate |
|
|
|
|
|
|
CNS- |
thiocyanate |
MoO42- |
molybdate |
|
|
|
|
|
|
O2- |
superoxide |
O22- |
peroxide |
|
|
|
|
|
|
MnO4- |
permanganate |
S22- |
disulfide |
|
|
|
|
|
|
ClO- |
hypochlorite |
|
|
|
|
|
|
|
|
ClO2- |
chlorite |
|
|
|
|
|
|
|
|
ClO3- |
chlorate |
|
|
|
|
|
|
|
|
ClO4- |
perchlorate |
|
|
|
|
|
|
|
|
BrO- |
hypobromite |
|
|
|
|
|
|
|
|
BrO2- |
bromite |
|
|
|
|
|
|
|
|
BrO3- |
bromate |
|
|
|
|
|
|
|
|
BrO4- |
perbromate |
|
|
|
|
|
|
|
|
IO- |
hypoiodite |
|
|
|
|
|
|
|
|
IO2- |
iodite |
|
|
|
|
|
|
|
|
IO3- |
iodate |
|
|
|
|
|
|
|
|
IO4- |
periodate |
|
|
|
|
|
|
|
|
AlO2- |
aluminate |
|
|
|
|
|
|
|
|
N3- |
azide |
|
|
|
|
|
|