Common Polyatomic Anions

Front 1

OH-

Back 1

HYDROXIDE

Front 2

CN-

Back 2

CYANIDE

Front 3

CO3^2-

Back 3

CARBONATE

Front 4

NO2-

Back 4

NITRITE

Front 5

NO3-

Back 5

NITRATE

Front 6

PO4^3-

Back 6

PHOSPHATE

Front 7

SO3^2-

Back 7

SULFITE

Front 8

SO4^2-

Back 8

SULFATE

Front 9

C2O4^2-

Back 9

OXALATE

Front 10

CrO4^2-

Back 10

CHROMATE

Front 11

MnO4-

Back 11

Permanganate

Front 12

ClO-

Back 12

Hypochlorite

Front 13

ClO2-

Back 13

Chlorite

Front 14

ClO3-

Back 14

Chlorate

Front 15

ClO4-

Back 15

Perchlorate

Front 16

S2O3^2-

Back 16

Thiosulfate

Front 17

S2O5^2-

Back 17

Difulfite

Front 18

CrO7^2-

Back 18

Dichromate