Fertilizer DAP 18-46-0 

Chemical Formula: (NH4)2HPO4


Di-ammonium phosphate (DAP) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid.

Di-ammonium phosphate is a concentrated fertilizer with high phosphorus and nitrogen content. It can be applied directly to soil of as a mixture with other fertilizers.

Physical Form:

Di-ammonium phosphate is a granulated fertilizer, with granules in size 2-4 mm (min. 90%). Granules can be Khaki green, light to dark gray, white, brown, yellow or black (with tones) DAP contains 18% of nitrogen in ammonia form and 46% of phosphorus as ammonium phosphate (exact formula can differ slightly depending on producer).

2. USES: 

  • DAP is used as a fertilizer. DAP can be applied for all field crops, grassland and in gardens and orchards. For the best effect DAP should be applied prior to sowing mixed with soil at the depth of ca. 20cm under the ground. It is recommended to use it in early Spring mainly for winter crops. DAP gives optimal effects when applied with potassium chloride which it can be mixed at any time. Directly before spreading it can be also blended with urea, ammonium nitrate and CAN.
  • DAP can be used as a fire retardant. It lowers the combustion temperature of the material, decreases maximum weight loss rates, and causes an increase in the production of residue or char. These are important effects in fighting wildfires as lowering the pyrolysis temperature and increasing the amount of char formed reduces that amount of available fuel and can lead to the formation of a firebreak. It is the largest component of some popular commercial firefighting products.
  • DAP is also used as a yeast nutrient in winemaking and mead brewing; as an additive in some brands of cigarettes purportedly as a nicotine enhancer; to prevent afterglow in matches, in purifying sugar; as a flux for soldering tin, copper, zinc and brass; and to control precipitation of alkali-soluble and acid-insoluble colloidal dyes on wool.

- Break Bulk in charter vessel

- Break Bulk/ containerized

- 50kg Bag/containerized


Should be added here.


Certificate of Analysis


DAP (18-46-0)




Chemical Specification

  Ammoniacal Nitrogen%

≥ 18

  (Total) Phosphorus Penta Oxide%

≥ 46

  (Water Soluble)Phosphorus Penta Oxide%

≥ 40

  (Water Soluble)Potassium Oxide%




Physical Specification

  Hardness ( Kg/Particle)

≥ 2

  Bulk Density ( T/m^3)(+,-0.1)


  Caking ( Kg/cm^2)


  Particle Size ( 2.0-4.0mm)%

≥ 90

  Particle Size ( 2.8-4.0mm)%

≥ 40

  Particle Size ( Below 1.0mm)%

≤ 1

  Product Color

Light to Dark Gray or

/and khaki green

   • We Use AZF Process ( DOUBLE PIPE REACTOR ) For Producing DAP