Executive Standard:HG-T4132-2010
Chemical Formula : NH4H2PO4
CAS NO.: 7783-28-0
HS Code: 310510090
NO. | Items | Standard | Internal Standards |
1 | Appearance | White Crystal | White Crystal |
2 | Main Content(NH4H2PO4)% ≥ | 98.0 | 99.0 |
3 | Phosphorus Pentoxide(P2O5)% ≥ | 51.8 | 53.0 |
4 | Nitrogen (N) %≥ | 20.0 | 21.0 |
5 | PH(1% Water Solution) | 7.8-8.2 | 7.8-8.2 |
6 | Arsenic (As) %≤ | 0.01 | <0.005 |
7 | Heavy metal ( Pb ) %≤ | 0.005 | <0.005 |
8 | Chloride (Cl- )% ≤ | 0.002 | <0.0005 |
9 | Fluoride (F) %≤ | 0.005 | <0.0005 |
10 | Sulphate ( SO4) %≤ | 0.005 | <0.001 |
11 | Water insoluble %≤ | 0.1 | 0.1 |
12 | Moisture %≤ | 0.2 | 0.2 |
Application Field :
Diammonium Phosphate is used in wood, paper and fabric as waterproof agent, as fire retardant paint additive, dry powder extinguishing agent, new energy lithium battery, etc.