MONOAMMONIUM PHOSPHATE ( MAP)
Molecular formula: NH4H2PO4
Molecular weight: 115.0
Standard executed:
Q/74465717-9.1-2005(technical grade)
Q/74465717-9.2-2005(food grade)
CAS Number: 7722-76-1
Properties:
White granular crystal; relative density at 1.803g/cm3, melting point at 190�J , easily soluble in water, slightly soluble in alcohol, insoluble in ketone, PH value of 1% solution is 4.5.
Uses:
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, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. Its total nourishment (N+P2O5 ) is at 73%, and may be used as a basic raw material for N, P and K compound fertilizer.
Packing and storage:
In 25kg, 50kg, 1000kg net bage, store at a cool, dry and well ventilated place.

1 Main contents% ? 99.0
2 Phosphorus pentoxide% ? 61.0
3 Nitrogen, as N % ? 12
4 PH of 1% water solution 4.4-4.8
5 Moisture% ? 0.2
6 Heavy metals, as Pb % ? 0.001
7 Arsenic, as As % ? 0.0003
8 Fluoride as F % ? 0.002
9 Water insoluble % ? 0.10