Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH4)2(HPO4)) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation: (NH4)2HPO4(s) ⇌ NH3(g) + (NH4)H2PO4(s) At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.
Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH4)2(HPO4)) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation: (NH4)2HPO4(s) ⇌ NH3(g) + (NH4)H2PO4(s) At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.
Source: Wikipedia "Diammonium phosphate" · CC BY-SA 4.0
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