Solubility of Ionic Compounds in Water
Key:
S=Soluble I=Insoluble
D=Decomposes in water
U=Compound does not exist or is unstable
Cation Anion |
Al +3 |
NH4 +1 |
Sb +3 |
As |
Ba +2 |
Bi +3 |
Cd +2 |
Ca +2 |
Cr +3 |
Co +2 |
Cu +2 |
Fe +3 |
Fe +2 |
H
+1 |
Pb +2 |
Mg +2 |
Hg +2 |
Hg +1 |
Ni +2 |
K +1 |
Ag +1 |
Na +1 |
Sr +2 |
Zn +2 |
C2H3O2 -1 |
S |
S |
U |
U |
S |
I |
S |
S |
S |
S |
S |
U |
S |
S |
S |
S |
S |
I |
S |
S |
I |
S |
S |
S |
Br-1 |
S |
S |
D |
D |
S |
D |
S |
S |
S |
S |
S |
S |
S |
S |
I |
S |
I |
Ia |
S |
S |
Ib |
S |
S |
S |
CO3-2 |
U |
S |
U |
U |
I |
U |
I |
I |
U |
I |
I |
U |
I |
S |
Ia |
Ia |
I |
Ia |
I |
S |
Ia |
S |
Ia |
Ia |
ClO3-1 |
S |
S |
U |
U |
S |
U |
S |
S |
U |
S |
S |
U |
U |
S |
S |
S |
S |
S |
I |
S |
S |
S |
S |
S |
Cl-1 |
S |
S |
S |
D |
S |
D |
S |
S |
S |
S |
S |
S |
S |
S |
I |
S |
S |
Ib |
S |
S |
Ib |
S |
S |
S |
CrO4-2 |
U |
S |
U |
U |
Ia |
U |
I |
S |
U |
I |
S |
S |
I |
S |
Ia |
S |
Ia |
Ia |
U |
S |
Ia |
S |
Ia |
Ia |
OH-1 |
Ia |
U |
U |
U |
S |
D |
I |
Ia |
I |
I |
Ia |
Ia |
Ia |
H2O |
Ia |
Ia |
U |
U |
I |
S |
U |
S |
I |
Ia |
I-1 |
S |
S |
D |
S |
S |
I |
S |
S |
I |
S |
U |
U |
S |
S |
Ia |
S |
Ia |
Ia |
S |
S |
I |
S |
S |
S |
NO3-1 |
S |
S |
U |
U |
S |
D |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
D |
S |
S |
S |
S |
S |
S |
O-2 |
Ib |
U |
I |
I |
S |
I |
I |
I |
I |
I |
Ia |
Ia |
Ia |
H2O |
I |
Ia |
I |
Ia |
I |
D |
I |
D |
I |
I |
C2O4-2 |
I |
I |
I |
U |
I |
D |
I |
I |
S |
I |
I |
S |
I |
S |
I |
I |
I |
I |
I |
S |
I |
S |
I |
I |
PO4-3 |
Ia |
S |
U |
U |
Ia |
I |
I |
Ia |
I |
I |
Ia |
Ia |
Ia |
S |
Ia |
Ia |
U |
U |
I |
S |
Ia |
S |
Ia |
Ia |
SiO3-2 |
I |
U |
U |
U |
S |
I |
I |
Ia |
U |
I |
U |
U |
I |
I |
Ia |
Ia |
U |
U |
U |
S |
U |
S |
Ia |
Ia |
SO4-2 |
S |
S |
D |
U |
Ib |
D |
S |
Ia |
S |
S |
S |
S |
S |
S |
I |
S |
D |
I |
S |
S |
I |
S |
I |
S |
S-2 |
D |
S |
D |
I |
D |
I |
I |
Ia |
I |
I |
Ia |
I |
Ia |
S |
Ia |
D |
I |
I |
I |
S |
Ia |
S |
I |
Ia |
SO3-2 |
U |
S |
U |
U |
I |
U |
I |
I |
I |
I |
U |
U |
I |
S |
I |
S |
U |
U |
I |
S |
I |
S |
I |
I |
Ia |
Soluble in Acids |
Ib |
Slightly Soluble in Acids | H2O | Produces water |