磷酸氢二铵（DAP）
Diammonium Phosphate
Chemical formula:(NH4)2HPO4
Molecular weight:132.0
CAS number:7783-28-0
Uses:
As a fire-prevention agent for fabric , timber and paper . For food grade it is mainly used as a fermentation agent , nourishment ,and so on . Used as a high effective non-chloride N,P compound fertilizer in agriculture . It contains totally 74% fertilizer elements ,used as a basic raw material for N,Pand K compound fertilizer .
用途：
主要用于木材、纸张、织物作防火剂，也用作防火涂料添加剂，还用于印刷制版和医药的制造等，在食品工业中用作发酵剂、营养剂等。在农业上作为无氯型N、P二元复合肥使用，其总养分（N+P2O5）为74%，是配制N、P、K三元复混肥的优质基础原料。
Packing and storage:
I n 25kg,50kg,1000kg net bags, store at a cool,dry and well ventilated place
Guaranteed technical specifications:
No. | specifications | TECH Grade | FOOD GRADE |
1 | Main content((NH4)2HPO4)%≥ | 98.0 | 99.0 |
2 | P2O5%≥ | 53.0 | 53.0 |
3 | Nitrogen, as N % ≥ | 20.8 | 20.8 |
4 | PH of 1% solution | 7.8-8.2 | 7.8-8.2 |
5 | Water insoluble %≤ | 0.10 | 0.10 |
6 | Moisture (H2O)≤ | 0.2 | 0.20 |
7 | Arsenic, as As%≤ | pass | 0.0003 |
8 | Fluoride as f%≤ | pass | 0.005 |
9 | Heavy metals, as Pb %≤ | pass | 0.001 |
