Chemical: DAP
Molecular Weight:132.06
Formulation:98%
Cas No.:7783-28-0
Diammonium phosphate DAP
Molecular Formula: (NH4)2HPO4
Molecular weight: 132.06
Executive Standard: HG/T 4132-2010 (Industrial Grade)
Properties:
White crystal or powder with relative density at 1.619 is soluble in water easily and alcohol insoluble.
Uses:
As fire-prevention agent for timber, paper and fabric, as well as fire-prevention coating; also it can be used in print plate making and pharmaceutical industry; as fermentation agent and nutritional agent in food industry;
|
Specification |
Technical grade |
Food grade |
Reagent grade |
|
|
|
|
|
Specification |
Reagent garde( AR) |
|
Main content (NH4H2PO4) % ≥ |
98.0 |
98.0 |
Main content (NH4H2PO4) % ≥ |
99.0 |
|
P2O5 % ≥ |
53.0 |
53.0 |
PH( (50g/l) |
7.8-8.2 |
|
Nitrogen(as N) % ≥ |
20.8 |
20.8 |
Clarity |
Qualified |
|
Water insoluble % ≤ |
0.10 |
0.10 |
Water insoluble % ≤ |
0.005 |
|
Moisture % ≤ |
0.20 |
0.20 |
Choride CL) % ≤ |
0.0005 |
|
Heavy metals(as Pb)% ≤ |
--- |
0.001 |
Sulfur compound (SO4)% ≤ |
0.005 |
|
Arsenic (as As) % ≤ |
--- |
0.0003 |
Nitrate (NO3) % ≤ |
0.0005 |
|
Fluoride (F) % ≤ |
--- |
0.005 |
Potassium (K)% ≤ |
0.005 |
|
PH value |
7.8~8.2 |
7.8~8.2 |
Arsenice (As)% ≤ |
0.0005 |
|
|
|
|
Sodium (Na)% ≤ |
0.01 |
|
|
|
|
Iron (Fe)% ≤ |
0.0005 |
|
|
|
|
Heavy metal (Pb)% ≤ |
0.0005 |
