Chemical formula: NH4H2PO4
Molecular weight: 115.0
Standard executed: Q/62089823-7.1-2002
Properties: White granular crystal; relative density is 1.803(19℃), melting point is 190℃, easily soluble in water, slightly soluble in alcohol, insoluble in acetone, pH value of 1% water solution is 4.5
Technical specifications:
|
No
|
Specification
|
Food grade Superior grade
|
|
1
|
Main content %≥
|
99.0
|
|
2
|
P2O5 %≥
|
61.0
|
|
3
|
Nitrogen, as N %≥
|
11.8
|
|
4
|
pH of 1% water solution
|
4.4-4.8
|
|
5
|
Moisture %≤
|
0.1
|
|
6
|
Heavy metal, as Pb %≤
|
0.001
|
|
7
|
Arsenic, as As %≤
|
0.0003
|
|
8
|
Fluoride, as F %≤
|
0.002
|
|
9
|
Water insoluble %≤
|
0.05
|
Application: Used as a fire-prevention agent for fabric, timber and paper, as well as a fire-prevention coating, and dry powder for fire extinguisher. For food grade, it is mainly used as a fermentation agent, nourishment agent, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. It contains totally 73% fertilizer elements (N+P2O5), and may be used as a basic raw material for N, P and K compound fertilizer.
Packaging: Plastic-woven sack with polythene inner bag, net weight at 25kg, 50kg or 1,000kg. Stored in ventilated and dry place
