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
Names
IUPAC name
ammonium phosphate
Other names
triammonium phosphate
Identifiers
3D model (Jmol)
ChemSpider
ECHA InfoCard 100.030.709
UNII
Properties
(NH4)3PO4
Appearance White, tetrahedral crystals
58.0 g/100 mL (25 °C)
Hazards
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
Thermochemistry
−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.