Chemical formula:  NH₄H₂PO₄ 

Molecular weight: 115.0

Standard executed: Q/62089823-7.1-2002

Properties: White granular crystal; relative density is 1.803(19^oC), melting point is 190, easily soluble in water, slightly soluble in alcohol, insoluble in acetone, pH value of 1% water solution is 4.5

 

No	Specification	Industrial grade	Food grade
1	Main content                  %≥	99.0	99.0
2	P2O5                              %≥	61.0	61.0
3	Nitrogen, as N                %≥	11.8	11.8
4	pH of 1% water solution	4.4-4.8	4.4-4.8
5	Moisture                        %≤	0.1	0.1
6	Heavy metal, as Pb       %≤	-	0.001
7	Arsenic, as As                %≤	-	0.0003
8	Fluoride, as F                 %≤	-	0.002
9	Water insoluble             %≤	0.10	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.