Ammonium phosphate dibasic CAS#7783-28-0
Broad Product Range and Versatility – Includes monoammonium, diammonium orthophosphates, and ammonium polyphosphates to meet diverse agricultural and industrial application needs.
Efficient and Reliable Production Process – Manufactured by direct reaction of anhydrous ammonia with orthophosphoric or superphosphoric acid, ensuring consistent quality and high purity.
Excellent Handling Properties – Dry, free-flowing crystalline solids that are easy to handle, package, and process in large-scale operations.
Convenient Storage and Transportation – Stable solid form with good physical strength, reducing caking and dusting for safer and more economical logistics.
Product Description of Ammonium Phosphate Dibasic (CAS No. 7783-28-0)
Ammonium phosphates comprise monoammonium and diammonium orthophosphates as well as ammonium polyphosphates. These products are manufactured through the direct reaction of anhydrous ammonia with orthophosphoric acid or superphosphoric acid. The resulting materials are dry, crystalline solids with excellent handling characteristics, making them convenient for storage, transportation, and industrial processing.
Ammonium phosphate dibasic Chemical Properties
| Melting point | 155 °C (dec.)(lit.) |
| bulk density | 800-1000kg/m3 |
| density | 1.203 g/mL at 25 °C |
| vapor pressure | 0.076Pa at 20℃ |
| RTECS | TB9385000 |
| storage temp. | -20°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Powder |
| Specific Gravity | 1.619 |
| color | White |
| Odor | wh. cryst. or powd., odorless, cooling salty taste |
| PH | 7.6-8.2 (100g/l, H2O, 20℃) |
| Water Solubility | 58 g/ 100mL (10 ºC) |
| λmax | λ: 260 nm Amax: 0.065 |
| λ: 280 nm Amax: 0.065 | |
| Merck | 14,542 |
| Stability: | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents. |
| InChIKey | MNNHAPBLZZVQHP-UHFFFAOYSA-N |
| LogP | -2.148 (est) |
| CAS DataBase Reference | 7783-28-0(CAS DataBase Reference) |
| EPA Substance Registry System | Diammonium phosphate (7783-28-0) |
| Hazard Codes | Xi,Xn,N |
| Risk Statements | 36/37/38-20/21/22-50 |
| Safety Statements | 26-36-61-37/39 |
| RIDADR | UN 3465 6.1 / PGIII |
| WGK Germany | 1 |
| F | 3 |
| TSCA | Yes |
| HS Code | 31053000 |
| Hazardous Substances Data | 7783-28-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 6500 mg/kg LD50 dermal Rabbit > 7950 mg/kg |
Product Application of Ammonium Phosphate Dibasic (CAS No. 7783-28-0)
Diammonium phosphate is widely used as an efficient compound fertilizer for vegetables, fruits, rice, and wheat, supplying both nitrogen and phosphorus nutrients. It also serves as a feed additive for livestock and ruminants, as well as a yeast nutrient and water softening agent.
In industry and laboratories, it is applied as an analytical reagent and buffering agent, and is used in printing plates, pharmaceuticals, and electronic components. In the food sector, it functions as a leavening agent, dough conditioner, fermentation additive, and pH buffer.
Additionally, industrial-grade diammonium phosphate is used in flame-retardant formulations, dry powder fire extinguishers, wood and fabric impregnation, fluorescent phosphors, wastewater treatment, and specialized fire-prevention and military insulation materials.
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