Di Ammonium Phosphate (DAP)
Synonyms: Diammonium Hydrogen Phosphate, Diammonium phosphate, ammonium phosphate dibasic, di ammonium phosphate, dap phosphate.
Molecular formula: (NH4)2HPO4
Molecular Weight: 132.0
CAS Number: 7778-28-0
Properties: Diammonium Phosphate is 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
|Name||Industry grade||Food grade|
|main assay as (NH 4 ) 2 HPO 4 ) %e||98.00||98.00|
|Moisture ( as H 2 O ) %d||0.20||0.20|
|PH value ( 1% solution )||7.8-8.2||7.8-8.2|
|Phosphorus pentoxide ( as P 2 O 5 ) %e||52.70||52.70|
|Water insoluble matter %d||0.10||0.10|
|Nitrogen (As N ) %e||20.50||20.50|
|Arsenic ( as As ) %d||0.0004|
|Fluoride ( as F ) %d||0.005|
|Heavy metal ( as Pb ) %d||0.002|
Use: As fire-extinguishing agent for fabric, wood, paper. For food grade, it is mainly used as nourishment additive.
Packing: Plastic bag, net weight 25kg, in dry and cool place.