H3PO4 + 2NH3 = (NH4)2HPO4
Di-ammonium phosphate (DAP) also known as Di-ammonium hydrogen phosphate is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid until the desired PH is obtained. DAP produced gets settled down in the solution and then it is further centrifuged to obtain the crystalline powder of Di-ammonium phosphate.
| Product Name | Di-Ammonium Phosphate (DAP) |
| IUPAC Name | Di-ammonium hydrogen orthophosphate |
| Molecular Formula | (NH4)2HPO4 |
| Molecular Weight | 132.1 |
| Appearance | White crystalline Powder |
| PH Range (5 % w/v) | 7.8 to 8.9 |
| Assay % / Purity % (minimum) | 97.00 |
| P2O5 Content % (minimum) | 52.00 |
| ‘N’ Content % (minimum) | 21.00 |
| Iron as 'Fe' content % | 0.02 |
| Chloride as 'Cl' content % | 0.2 |
| Sulfate as 'SO4' content % | 0.03 |
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