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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
主含量[以(NH4)2HPO4計]  %≥ Main content
99.0
2
五氧化二磷(以P2O5計)    %≥ Phosphorus pentoxide
53.0
3
氮(以N計)              %≥ Nitrogen, as N
20.8
4
PH值(1%水溶液) PH value of 1% solution
7.6—8.2
5
水份                      %≤ Moisture
0.2 
6
重金屬(以Pb計)         %≤ Heavy metals, as Pb
/
7
砷(以As計)             %≤ Arsenic, as As
/
8
氟化物(以F計)          %≤ Fluoride as F
/
9
水不溶物                  %≤ Water insoluble
0.10
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