Synonyms: mono -Ammonium phosphate; prim -Ammonium phosphate; Ammonium dihydrogenphosphate Formula: NH4H2PO4 Formula Weight: 115.03 CAS No.: 7722-76-1 Purity: ≥99.99% trace metals basis Application: Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH 4 Fe 2 (PO 4 ) 2 . 1 Packaging: 50, 250 g in poly bottle