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| Product Name: | Diammonium hydrogen phosphate | Other Name: | Phosphoric acid,ammonium salt (1:2);Phosphoric acid,diammonium salt;Ammonium phosphate dibasic;Diammonium hydrogen phosphate;Diammonium phosphate;Secondary ammonium phosphate;Dibasic ammonium phosphate;Ammonium monohydrogen orthophosphate;Diammonium monohydrogen phosphate;Ammonium hydrogen phosphate;Diammonium orthophosphate;Diammonium acid phosphate;Ammonium dibasic phosphate;Diammonium hydrogen orthophosphate;Ammonium hydrogen phosphate ((NH4)2HPO4);Pelor;Phos-Chek 202A;Hydrogen diammonium phosphate;Coaltrol LPA 445;Akoustan A;K 2 (phosphate);K 2;Ammonium orthophosphate dibasic;Diammonium hydrogen phosphate ((NH4)HPO4);Ammonium monohydrogen phosphate;Ammonium phosphate ((NH4)2(HPO4));Spartan AR 295;DAP;Pyrozyl WAR;1801523-64-7;2250073-86-8 |
| CAS No.: | 7783-28-0 | Molecular Formula: | H3N.1/2H3O4P |
| InChIKeys: | InChIKey=MNNHAPBLZZVQHP-UHFFFAOYSA-N | Molecular Weight: | 132.06 |
| Exact Mass: | 132.029999 | EC Number: | 231-987-8 |
| UNII: | 10LGE70FSU | ICSC Number: | 0217 |
| DSSTox ID: | DTXSID6029705 | Color/Form: | White crystals|Crystals or crystalline powder |
| HScode: | 31053000 | Categories: | Leavening Agent |
| PSA: | 85.4 | XLogP3: | -0.28080 |
| Appearance: | White Powder | Density: | 3″>1.619 g/cm3 |
| Melting Point: | 155 °C (decomp) | Boiling Point: | 158ºC at 760 mmHg |
| Refractive Index: | 1.53 | Water Solubility: | H2O: 58 g/ 100mL (10 ºC) |
| Storage Conditions: | Store at RT. | Toxicity: | Reference value: Oral-rat LD50: 17000 mg/kg; Abdominal-rat LDL0: 1000 mg/kg |
| Flammability characteristics: | Heating produces toxic nitrogen oxides, phosphorus oxides and ammonia fumes | Odor: | Odorless |
| Taste: | Saline, cooling taste | PH: | pH about 8 |
| Experimental Properties: | Heat of solution: 42 Btu/lb = 23 cal/g|Decomposes into ammonia and monoammonium phosphate at about 70 °C. Unstable at room temperature and exhibits an ammonium vapor pressure in the solid form and in solution.|Gradually loses about 8% ammonia on exposure to air. |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong oxidants, strong bases and strong acids. Keep in a well-ventilated room.