| Soluble Ionic Compounds | Exceptions |
|---|---|
| All IA cations and ammonium | None |
| nitrates, nitrites, acetates, ClOx-, IO3- | None |
| chloride, bromides, iodides | Cu+, Ag+, Au+, Hg22+, Pb2+ |
| sulfates | Cu+, Ag+, Au+, Hg22+, Pb2+, Ca2+, Sr2+, Ba2+ |
| Insoluble Ionic Compounds | Exceptions |
| sulfides | IA, IIA, NH4+ |
| CO32-, PO43-, silicates sulfites, chromates | IA, NH4+ |
| hydroxides | IA, Sr2+, Ba2+ |