Di-Ammonium Hydrogen Orthophosphate, Ammonium Phosphate Dibasic OR Di-Ammonium Phosphate (DAP)

Di-Ammonium Phosphate


H3PO4 + 2NH3 = (NH4)2HPO4

Grades We Manufacture :

Di-ammonium Phosphate Technical grade
Di-ammonium Phosphate Laboratory Reagent (LR) grade

Di-ammonium phosphate (DAP) also known as Di-ammonium hydrogen phosphate is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid until the desired PH is obtained. DAP produced gets settled down in the solution and then it is further centrifuged to obtain the crystalline powder of Di-ammonium phosphate.


  Di-ammonium phosphate is used for fireproofing textiles, paper, wood and vegetable fibers.
  Di-ammonium phosphate is also used in impregnating lamp wicks as well as preventing after glow in matches.
  DAP proves as a flux for soldering tin, copper, brass & zinc
  DAP is used in purifying sugar, in yeast cultures, in dentifrices, in corrosion inhibitors and widely used in fertilizers.


  HDPE bag with LDPE liner in 20 kg, 25kg, 40kg and 50 kg
  As per customer's request.


Product Name Di-Ammonium Phosphate (DAP)
IUPAC Name Di-ammonium hydrogen ortho phosphate
Molecular Formula (NH4)2HPO4
Molecular Weight 132.1
Appearance White crystalline Powder
PH Range (1% w/v) 7.8 to 8.9
Assay % / Purity % (minimum) 97.00
P2O5 content % (minimum) 52.00
'N' Content % (minimum) 21.00
Iron as 'Fe' Content % 0.02
Chloride as 'Cl' Content % 0.2
Sulphate as 'SO4' content % 0.03


Plot No. N-43, M.I.D.C, Anand Nagar, Additional Ambarnath Indl. Area, Ambarnath (E), 421506, Dist. Thane, Maharashtra, India