Metal Ammonium Phosphates and Their New Applications

The review deals with the methods of preparation and applications of double salts comprising metal and ammonium phosphates. Particular attention has been given to the methods of preparation and properties of divalent metal compounds of composition MNH₄PO₄·nH₂O which are interesting as complex, long-acting fertilizers.
The syntheses and investigations of those trivalent metal compounds which can be formed on interaction between water-soluble phosphorus fertilizers and soils are described extensively. The bibliography comprises 65 references.