Physical Properties
Chemical formula | (NH4)H2PO4 |
Appearance | White crystals |
Melting point | 190°C |
Density | 1.8 g/cm3 |
Molar mass | 115.00 g/mole |
SETH NANDRAM DAULATRAM BIYANI
Creating Chemistry between India and the World
Mono Ammonium Phosphate (MAP) is another name of Ammonium Dihydrogen Phosphate (ADP). MAP is a white crystalline solid, and it is highly water-soluble, but it doesn’t turn into liquid when exposed to air or moisture. MAP has the chemical formula (NH4) (H2PO4). It is insoluble in ethanol. It produces an acidic solution of pH 4.7 at 1% concentration. It is a rarely found mineral and occurs as biphosphammite naturally.
MAP can be prepared in the laboratory by the exothermic reaction in the accurate proportions of phosphoric acid and ammonia.
MAP has a wide range of applications in the industry because of its crystalline appearance and structure. Most wide use of MAP is in agriculture as a fertilizer. Fertilizers manufacturers use MAP in tons; over the globe; because it dissolves in soil rapidly and remains stable at temperatures up to 200 °C. It supplies nitrogen and phosphorus to plants which are most important for plant growth and nutrition. Other than agriculture, it has a wide range of uses. MAP is also an essential component of ABC powder in some fire extinguishers. And it also has application in optics due to its birefringence properties. As MAP has a tetragonal crystal structure, it has negative uniaxial optical symmetry. It has typical refractive indices no = 1.522 and ne = 1.478 at optical wavelengths. In crystal manufacturing kits, like amethyst or aquamarine crystals, MAP is present. Mono ammonium crystals are piezoelectric; because of this property, MAP replaced the quartz and Rochelle salt crystals in the 1950s.
Mono ammonium phosphate is hazardous to human skin and eyes because, on decomposition, it releases ammonia and phosphoric acid, which are highly toxic and corrosive and cause ammonia poisoning.
It is used in numerous industrial applications like:-
… and many more.
SNDB Chemicals can provide 99% pure mono ammonium phosphate and quality product for commercial use.
Details of SNDB Chemicals Mono Ammonium phosphate can be found below:-
Chemical formula | (NH4)H2PO4 |
Appearance | White crystals |
Melting point | 190°C |
Density | 1.8 g/cm3 |
Molar mass | 115.00 g/mole |
Parameters | Unit | Technical Grade | Feed Grade |
Appearance | – | White crystal | White crystals |
Assay | % min | 99 | 99 |
Total Phosphorous (as P2O5) | % min | 61.00 | 61.00 |
Total Nitrogen | % min | 11.50 | 11.50 |
Insoluble matter in water | % max | 0.1 | 0.05 |
Water (Loss on drying) | % max | 0.15 | 0.15 |
Heavy metals (as Pb) | max ppm | 50 | 5 |