Ammonium dihydrogen phosphate (MAP)
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Chemical Formula: NH4H2PO4
Molecular weight: 115.0
Standard: Q/7089476401-1998
Properties: white granular Crystal, Relative density 1.803, Melting point 190°C, and PH value of 1% solution is 4.5.
Uses: Mainly used as flame retardant of wood, paper and fabric; Also used as additive of fire retardant paint, dry powder fire extinguishing agent. As fermentation agent, nourishment agent in the food industry Used as a a chlorine-free N+P compound fertilizer. It contains totally 73% fertilizer elements (N+P2O5), used as a basic raw material for N, P and K compound fertilizer. .
Packaging and Storage: Plastic lined woven bag, paper bag, net wt 25, 50, 1000Kg, Stored in ventilated and dry place.
Technical index:
|
No. |
Index name |
Industrial grade |
Food Grade |
|
1 |
Main assay (as NH4H2PO4) %≥ |
99.0 |
99.0 |
|
2 |
Phosphorus pentoxide (as P2O5) %≥ |
61.0 |
61.0 |
|
3 |
N%≥ |
11.8 |
11.8 |
|
4 |
PH value |
4.4-4.8 |
4.4-4.8 |
|
5 |
Moisture%≤ |
0.2 |
0.2 |
|
6 |
Heavy Metals (as Pb) %≤ |
0.001 |
|
|
7 |
As %≤ |
0.0003 |
|
|
8 |
Fluoride (as F) %≤ |
0.005 |
|
|
9 |
Water Insoluble Matter%≤ |
0.10 |
0.10 |