Ammonium salt

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DIAMMONIUM PHOSPHATE (DAP)

Guaranteed Technical Specifications

Chemical formula:(NH4)2HPO4
Molecular weight: 132.0
Standard executed: HG/T4132-2010(INDUSTRIAL GRADE)HG/T4132-2010(LOW AS GRADE)
Throughput: 100000t/a

Properties

White granular crystal, relative density at 1.619, melting point at 155℃, easily soluble in water, insoluble in alcohol, PH value of 1% solution is 8.0

Uses

As a fire-prevention agent for fabric, timber and paper. 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. It contains totally 74% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer.

Packing and storage

Plastic-woven sack, with polythene inner bag, net weight 25kg, 50kg or 1000kg. Store at a ventilated, dry place. 

  • Other Parameters


序號 No.
指標名稱 Specifications
工業級 Industrial Grade
食品級 Food Grade
1  
主含量[以(NH4)2HPO4計] Main content  %≥
99.0
99.0
2
五氧化二磷(以P2O5計) Phosphorus pentoxide     %≥
53.0
53.0
3
氮(以N計) Nitrogen, as N               %≥
20.8
20.8
4
PH值(1%水溶液) PH value of 1% solution
7.6—8.2
7.6-8.2
5
水份 Moisture                       %≤
0.2  
0.2
6
重金屬(以Pb計) Heavy metals, as Pb         %≤
/
0.001
7
砷(以As計) Arsenic, as As             %≤
/
0.0003
8
氟化物(以F計) Fluoride as F           %≤
/
0.001
9
水不溶物  Water insoluble                  %≤
0.10
0.10

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