Solubility of Inorganic Substances in Water
- Nearly all nitrates and acetates are soluble.
- All chlorides are soluble, except those of silver, mercury (I) and lead (PbCl2 is soluble in hot water).
- All sulfates are soluble, except barium, strontium and lead.
- Most of the alkali metal (Group 1) salts and ammonium salts are soluble.
- All the common acids are soluble.
- All oxides and hydroxides are insoluble, except those of alkali metals (Group 1) and certain (Ca (moderately), Sr, Ba, Ra) alkaline earth metals (Group 2).
- All sulfides are insoluble, except those of the alkali metals (Group 1), alkaline earth metals (Group 2) and ammonium.
- All phosphates, carbonates, chromates, and oxalates are insoluble, except those of alkali metals (Group 1) and ammonium.