Di-Ammonium Phosphate( DAP)
DAP
Chemical formula: (NH4)2HPO4
Molecular weight: 132.06
Standard executed: Q/7089476401-1998
Properties: White granular crystal and relative density is 1.619, melting point is 155° C, easy to dissolve in water and not dissolve in alcohol, pH value of 1% water solution is 8.0. It will lose gradually ammonia to become ammonium dibasic phosphate.
Applications: Mainly used for the fire retardant of wood, paper and textile, and for fireproofing dope additive.
Package and storage: Plastic-woven sack with polythene inner bag, net weight per bag is 25kg, 50kg and 100kg. Keep in dry and windy conditions.
| No. |
Specifications |
Industrial Grade |
Food Grade |
| 1 |
Main content% ≥ |
99.0 |
99.0 |
| 2 |
Phosphorus pentoxide% ≥ |
53.0 |
53.0 |
| 3 |
Nitrogen, as N % ≥ |
20.8 |
20.8 |
| 4 |
PH value of 1% solution |
7.6-8.2 |
7.6-8.2 |
| 5 |
Moisture % ≤ |
0.2 |
0.2 |
| 6 |
Heavy metals, as Pb %≤ |
|
0.001 |
| 7 |
Arsenic, as As% ≤ |
|
0.0003 |
| 8 |
Fluoride as F% ≤ |
|
0.001 |
| 9 |
Water insoluble % ≤ |
0.10 |
0.10 |
Audited Supplier 
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