Monoammonium Phosphate(MAP)
Molecular formula: NH4H2PO4
Molecular weight: 115.03
Standard executed: Q/74465717-9.1-2005(tchnical grade)
Q/74465717-9.2-2005(food grade)
CAS Number: 7722-76-1
Properties: It is in Colorless, transparent and syrupy liquid or rhombic crystalline; It is odorless and tastes very sour; Its melting point is 42.35 and when heated to 300 it will become into meta phosphoric acid; Its relative density is 1.834; It is easily soluble in water and resolves in ethanol; It may irritate human skin to cause phlogosis and destroy the issue of human body; It shows corrosiveness being heated in ceramic vessels.
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 plastic bag inner and weave bag outer, store at a cool, dry and well ventilated place.

No Specifications Tech. Grade Food Grade
1 Main contents% ≥ 98.0 98.0
2 Phosphorus pentoxide% ≥ 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% ≤ 0.2 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 0.10