Formula (NH4)3PO4 | ||
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Related compounds Appearance White, tetrahedral crystals |
Monoammonium phosphate map fertilizers
Ammonium phosphate is the salt of ammonium and phosphate. It is a highly unstable compound with the formula (NH4)3PO4. Because of its instability, it is elusive and of no commercial value (except for scientific research). In addition to (NH4)3PO4, a related double salt (NH4)2HPO4 is also recognized. It too is unstable. The instability of these salts results in their facile decomposition with evolution of ammonia:
(NH4)3PO4 → (NH4)2HPO4 + NH3
In contrast to the fragile nature of the triammonium salts, diammonium phosphate (NH4)2HPO4 is a valuable material, mainly used as a fertilizer.







References
Ammonium phosphate Wikipedia(Text) CC BY-SA