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
