Description
Product name: Monoammonium phosphate (MAP), Ammonium dihydrogen phosphate (ADP)
Molecular formula: NH4H2PO4
Molecular weight: 115.026
CAS NO.: 7722-76-1
Properties and uses:
Monoammonium phosphate (MAP), commonly known as Ammonium dihydrogen phosphate (ADP), is a chemical compound with the chemical formula NH4H2PO4. It is a white crystalline powder or granular substance that is easily soluble in water. Ammonium dihydrogen phosphate has many applications in different fields.
ADP is widely used in agriculture as a source of nitrogen and phosphorus, essential nutrients for plant growth. It is often applied to crops to improve their yield and quality. It can be used as a flame retardant in a variety of materials, including wood, paper and textiles. It helps reduce the flammability of these materials. Ammonium dihydrogen phosphate is used as a buffering agent in laboratory settings. It helps maintain stable pH levels in solutions, making it valuable in a variety of chemical and biological experiments. In the food industry, ADP is used as a leavening agent in baking and as a pH adjuster in some processed foods. Used to provide phosphorus source during electroplating process. In analytical chemistry, ammonium dihydrogen phosphate is used to prepare reagents and standard solutions for various chemical tests and analyses. Similar to potassium dihydrogen phosphate (KDP), ADP is used for single crystal growth in nonlinear optics and electro-optical applications. It is a key material for devices such as frequency doubling crystals and electro-optic modulators. It is also used in pharmaceuticals as an excipient in tablet formulations and other drug manufacturing processes.
Ammonium dihydrogen phosphate is a versatile compound with a variety of applications. It plays a vital role in agriculture, chemical processes and various industries.
Standard: HG/T5048-2016
| Indicators | Unit | First-class product | Second-class product |
| Appearance | / | White or colorless crystal | |
| Ammonium dihydrogen phosphate | ≥% | 99.0 | 99.0 |
| Total nitrogen | ≥% | 11.8 | 11.8 |
| Phosphorus pentoxide | ≥% | 61.0 | 61.0 |
| pH value | 10g/L | 4.0-4.8 | 4.0-4.8 |
| Moisture content | ≤% | 0.2 | 0.2 |
| Heavy metals (calculated by lead) | ≤% | 0.005 | 0.001 |
| Arsenic | ≤% | 0.005 | 0.0003 |
| Fluorine | ≤% | 0.2 | 0.001 |
| Water insoluble matter | ≤% | 0.1 | 0.1 |
| Solubility (at 22℃) | g/L | 360.0 | |
| Soluble salt concentration (1 g/L 20℃) | mS/cm | 0.875 | |
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