Diammonium phosphate(DAP)
Diammonium phosphate(DAP)
Chemical formula: (NH4)2HPO4
Molecular Weight:132.0
Property;
It is white crystals, Density is 1.619, melting point is 155℃. Soluble in water easily, PH of 1% water solution is 8.0.
Technical Specifications
Specifications | Specifications | |
| Tech. grade | Food grade |
Appearance | White crystals | |
Main content, % min | 99.0 | 99.0 |
Phosphorus pent-oxide, % min | 53.0 | 53.0 |
Nitrogen as N, % min | 20.8 | 20.8 |
Water insoluble, % max | 0.1 | 0.05 |
Moisture, % max | 0.2 | 0.2 |
Heavy metals,as Pb. % max | ------ | 0.001 |
Arsenic,as As. % max | ------ | 0.0003 |
Fluorde,as F. % max | ------ | 0.002 |
PH | 7.8-8.2 | 7.8-8.2 |
Applications;
Used as fire-extinguishing agent for fabric, woods, paper. For food grade, it is mainly used as ferment agent, nourishment , and so on. Used as a high effective non-chloride N、P compound fertilizer in agriculture ;It contains totally 74% fertilizer elements ;May used as a basic raw materials for N、P、K compound fertilizer.
Package and storage
Packing In 25kg PP woven bag,Store at ventilated dry place.
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