| Ion | Solubility | Exceptions | 
| NO3 | soluble | none | 
| ClO4 | soluble | none | 
| Cl | soluble | 
 except Ag+, Hg22+, *Pb2+ | 
| I | soluble | except Ag+, Hg22+, *Pb2+ | 
| SO42- | soluble | except Ca2+, Ba2+, Sr2+, Hg2+, Pb2+, Ag+ | 
| CO32- | insoluble | except Group IA and NH4+ | 
| PO43- | insoluble | except Group IA and NH4+ | 
| OH | insoluble | except Group IA, *Ca2+, Ba2+, Sr2+ | 
| S2- | insoluble | except Group IA, IIA and NH4+ | 
| Na+ | soluble | none | 
| K+ | soluble | none | 
| NH4+ | soluble | none |