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 1.803, melting point at 190  , 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 bag, store at a cool, dry and well ventilated place.

Specifications   Industrial Grade Food Grade

Main contents% ≥ 98.0          98.0

Phosphorus pentoxide% ≥ 61.0      61.0

Nitrogen,as N % ≥ 11.8          11.8

PH of 1% water solution 4.4-4.8     4.4-4.8

Moisture      % ≤   0.2            0.2

Heavy metals,as Pb % ≤            0.001

Arsenic, as As % ≤                 0.0003

Fluoride as F% ≤                 0.002

Water insoluble % ≤ 0.10            0.10

 

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