TIANJIN EVERWIN IM. AND EX. CO., Ltd.

Diammonium Hydrogen Phosphate

• Category :

  Inorganic chemicals

• Synonyms :

  Diammonium Phosphate;Diammonium hydrogen phosphate;Ammonium phosphate dibasic;Ammonium hydrogen phosphate;di-Ammonium hydrogen orthophosphate;Phosphorus ICP standard solution Fluka;Di-Ammonium Phosphate;Ammonium phosphate, dibasic;Diammonium hydrogenphosphate;Ammonium Hydrogen Orthophosphate;Ammonium Monohydric Phosphate;

• CAS NO :

  7783-28-0

• EC NO :

  231-987-8

• Molecular Formula :

  (NH₄)₂HPO₄

• Molecular Weight :

  132.0551

• Main Specifications :

• InChI :

  InChI=1/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)/p-1

• Product description :

  Standard

  Industrial grade (light-colored powder or particles, Standard HG/T 4132-2010)

  Test Items	First grade	Qualified
  Assay [as (NH4)2HPO4] % ≥	95.0	93.0
  Assay (as P2O5) % ≥	51.0	50.0
  Total Nitrogen (as N) % ≥	18.0	18.0
  Moisture % ≤	5.0	5.0
  Fluorine (as F) % ≤	0.01	—

   

  Fertilizer (granular，Standard GB 10205-2009)

  Test Items	Traditional method			Slurry method
  	Premium 12-52-0	First 11-49-0	Qualified 10-46-0	Premium 11-47-0	First 11-44-0	Qualified 10-42-0
  Appearance	Granular, no mechanical impurities
  Total Nutrient (N+P2O5) % ≥	64.0	60.0	56.0	58.0	55.0	52.0
  Total Nitrogen (as N) % ≥	11.0	10.0	9.0	10.0	10.0	9.0
  Available Phosphorus (P2O5) % ≥	51.0	48.0	45.0	46.0	43.0	41.0
  WP/AP % ≥	87	80	75	80	75	70
  Moisture % ≤	2.5	2.5	3.0	2.5	2.5	3.0
  Size (1.00~4.00mm) % ≥	90	80	80	90	80	80

  Feed additive (white crystalline, Standard HG/T 3774-2005)

  Test Items	Standard Request
  DAP (as P) %	22.7±0.4
  Nitrogen % ≥	19
  Fluorine % ≤	0.05
  Arsenic % ≤	0.002
  Lead % ≤	0.002
  Moisture % ≤	0.3
  pH (50g/L solution) ≥	7.0
  Size (6mm sieve residue) %	0

  Production methods

  1.Traditional method: concentrating the wet process phosphoric acid, neutralizing with ammonia, crystallizing and drying

  2.Neutralized slurry concentration process: neutralizing ammonia with wet process phosphoric acid and then concentrating, crystallizing and drying

  Packing, transportation and storage

  Packing: Plastic woven bag, net weight of 25kg, 50kg or ton bag. It can be also packaged according to customer requirements.

  Transportation: It should be covered during transportation. Guard against rain and damp.

  Storage: Keep in cool and dry place. Avoid damp, sun and heat.

• Molecular Structure :