MONOAMMONIUM PHOSPHATE (MAP)
Chemical formula：NH4H2PO4
Molecular weight：115.03
Standard executed：
HG/T 4133-2010(Industrial Grade)
GB25569-2010(Food Grade)
CAS Number：7722-76-1
Properties:
White granular crystal; relative density at 1.803, melting point at 190℃, easily soluble in water, slightly soluble in alcohol, insoluble in ketone, PH value 1% solution is 4.5 .
Application:
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:
Plastic-woven sack, net weight at 8kg, 25kg, 50kg or 1,000kg. Store at a ventilated, dry place.
Technical Specifications:
NO. | Specifications | Industrila Grade | Food Grade |
1 | Main contents | MIN 99.0% | MIN 99.0% |
2 | Phosphorus pentoxide | MIN 61.0% | 61.0% |
3 | Nitrogen, as N | MIN 11.9% | 11.9% |
4 | PH value (1% solution) | 4.2-4.8 | 4.3-5.0 |
5 | Moisture | MAX 0.2% | 0.2% |
6 | Heavy metal, as Pb | MAX 0.01% | |
7 | Arsenic, as As | MAX 0.0003% | |
8 | Fluoride, as F | MAX 0.001% | |
9 | Water insoluble | MAX 0.1% | MAX 0.10% |
10 | Pb | MAX 0.1% | MAX 0.0004% |
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