Diammonium phosphate, commonly referred to as (DAP 18-46), is the world's most used phosphate fertilizer. As a primary nutrient, DAP helps the plant to capture and convert the sun's energy into useful compounds for the plant. It also stimulates root development and enhances the durability of the stems.
Usage: In addition to its wide usage in the agricultural sector, DAP is also used to impregnate matches, and as a flame-retardant (for fighting forest fires).
DAP is the most concentrated phosphate-based fertilizer. It is perfect for any agricultural crop to provide phosphorus nutrition throughout crop growth and development, as well as starter dose of nitrogen and lower sulphur.
It can be applied in autumn for tilling and in spring during sowing, as well as pre sowing cultivation. Dissolving in soil, it provides temporary alkalization of pH of the soil solution around the fertilizer granule, thus stimulating better uptake of phosphorus from the fertilizers on acid soils. Fertilizer's sulphur also contributes to the better intake of nitrogen and phosphorus by plants.
Diammonium Phosphate Fertilizer DAP
Chemical formula:(NH4)2HPO4
Molecular weight:132.0
Standard executed :HG/T4132-2010(Tech grade) GB 30613-2014 (Food grade)
Property:White crystal, Relative density is 1.619g/cm3, melting point is 155 , easily soluble in water , insoluble in alcohol, PH value of 1%solution is 8.0
Uses:As a fire-prevention agent for fabric, timber and paper. Also as a raw maerials for ammonium polyphosphate of high polymerization. It may be used for makeding printing plates; in food industry it is mainly used as a fermentation agent, nourishment and so on; In agriculture, it is used as a high effective non-chloride N,P compound fertilizer and containing totally 74% fertilizer elements, it is often used as a basic raw material for N,P and K compound fertilizer.
Packing:Plastic woven bag. Net weight 25 Kg, 50Kg ,1000Kg , store at a cool, dry and well ventilated place.
"Type: Food Additives
Origin: China
CAS No.: 7783-28-0
AUCO No.: 300
Packing: 25kg bag"
Items Standard
Main content (NH4) 2HPO4 99%
P2O5 Phosphorus Pentoxide 53%
Nitrogen, as N 20.8%
Moisture 0.1%
Heavy metals, as Pb 0.001%
SO4 0.5%
Arsenic, as As 0.0003%
Fluoride 10 ppm
Water insoluble 0.10%
PH (1% water solution) 7.8-8.2
Na2O 0.001%
K2O 0.01%
Density 20--40 mesh
Insoluble matter NIL
Any foreign particle NIL
DAP NH42HPO4 is a light brown granular phosphatenitrogen compound fertilizer produced by neutralizing phosphoric acid with ammonia
The phosphate is well soluble in water while the nitrogen content is in ammonium form P nutrient availability is ensured for crop rotation at the same time as nitrate fertilization
DAP can be used for all types of crop and all kinds of soil and should be applied during nitrogen fertilization in the spring or autumn
High quality contains fully watersoluble highly concentrated phosphate
Good transport and storage qualities nonhygroscopic nondustforming does not tend to cake
Good spreading behavior thanks to a balanced range of granule sizes
Suitable for fertilizer mixes thanks to excellent granular properties
