ammonium phosphate

garam diammonium dari asam fosfat (NH4)2HPO4, digunakan sebagai agen pendapar dalam preparat farmasi. Lihat juga sturvite.

Merriam-Webster Online Dictionary
ammonium phosphate (noun)
a phosphate of ammonium , especially - diammonium phosphate
ammonium phosphate (Wikipedia)
Ammonium phosphate
Ammonium phosphate.png
Ball-and-stick model of three ammonium cations and one phosphate anion
IUPAC name
ammonium phosphate
Other names
triammonium phosphate
3D model (Jmol)
ECHA InfoCard 100.030.709
Appearance White, tetrahedral crystals
58.0 g/100 mL (25 °C)
NFPA 704
Flammability code 0: Will not burn. E.g., waterHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
−1671.9 kJ/mol
Related compounds
Other cations
Trisodium phosphate
Tripotassium phosphate
Related compounds
Diammonium phosphate
Monoammonium phosphate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

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.