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Prouct Introduction and Attributes
Diammonium phosphate,DAP
Molecular formula : (NH4)2HPO4
Molecular weight : 132.05
Model No.: CF-DAP621(First grade) CF-DAP622(Upper grade )
Property : White sandlike crystal,
special gravity : 1.619,
melting point : 155oC, easy soluble in water. pH value of 1% water solution is 8.0.
Product Application
Used as fire retardant, fire-proofing agent, fire-proof agent additive for wood, paper, fabric, used in manufacturing late making, medicine and radio tube, also used in phosphorus, nitrogen high efficient compound fertilizer. Upper grade is mainly used as nutrient.
Product Specification
|
Specification
|
First grade
|
Upper grade
|
|
Appearance
|
White crystal
|
White crystal
|
|
Total content %
|
≥98
|
≥98
|
|
P2O5 content %
|
≥53
|
≥53
|
|
N content %
|
≥20.8
|
≥20.8
|
|
Moisture %
|
≤0.2
|
≤0.2
|
|
Water insoluble matters %
|
≤0.1
|
≤0.1
|
|
Heavy metal ( base on Pb ) %
|
—
|
≤0.001
|
|
As ( base on As ) %
|
—
|
≤0.0003
|
|
Fluoride ( base on F ) %
|
—
|
≤0.005
|
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