fertilizer urea

Product Overview

Description

 

1.Application

 

Agriculture: More than 90% of world production of urea is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrient. The standard crop nutrient rating of urea is 46-0-0. Urea is also used in many multi-component solid fertilizer formulations. Urea is highly soluble in water and is, therefore, also very suitable for use in fertilizer solutions. Urea is usually spread at rates of between 40 and 300 kg/ha but rates vary. Smaller applications incur lower losses due to leaching. During summer, urea is often spread just before, or during rain to minimize losses from volatilization (process wherein nitrogen is lost to the atmosphere as ammonia gas). Urea is not compatible with other fertilizers. In grain and cotton crops, urea is often applied at the time of the last cultivation before planting. In high rainfall areas and on sandy soils (where nitrogen can be lost through leaching) and where good in-season rainfall is expected, urea can be side- or top-dressed during the growing season. Top-dressing is also popular on pasture and forage crops. In cultivating sugarcane, urea is side-dressed after planting, and applied to each ratoon crop..

 

 

 

 

2.Indentification

 

Synonyms:Carbamide

CAS No.:57-13-6

Chemical Formula:(NH2)2CO or CH4N2O

Chemical Name:Carbonyl diamide

HS CODE:3102100001

 

3.Physical and Chemical Index:

 

Appearance	White, Free Flowing, Free from Harmful Substances and Foreign Matters.
Boiling Point	131-135ºC
Melting Point	1080G/L(20ºC)
Refractive index	n20/D 1.40
Flash point	72.7°C
Flash point	InChI=1/CH4N2O/c2-1(3)4/h(H4,2,3,4)
Water soluble	1080 g/L (20°C)

 

4.Specification

Index name	Industrial Grade			Agricultural Grade
	Superior	First-rate	qualified	Superior	First-rate	qualified
color	White color			White or light color
Total nitrogen (N) content (dry basis),% ≥	46.3	46.3	46.3	46.3	46.3	46.3
Biuret content,% ≤	0.5	0.9	1.0	0.9	1.0	1.5
Content of water (H2O),% ≤	0.3	0.5	0.7	0.5	0.5	1.0
Iron content (Fe),% ≤	0.0005	0.0005	0.0010	—	—	—
The alkalinity (NH3 meter),% ≤	0.01	0.02	0.03	—	—	—
Sulfate content (in SO) 4-2 meter),% ≤	0.005	0.010	0.020	—	—	—
Water insoluble matter,% ≤	0.005	0.010	0.040	—	—	—
Particle size (φ 0.85-2.80mm),% ≥	90	90	90	90	90	90

 

5.Packing

 

in plastic woven bag (inside polyethylene film bag) or composite plastic weaving equipment.The net weight of each bag is 50 ± 0.2kg.Urea packing piece

 

6.Storage

 

Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 23°C (73.4°F).

 

7.photos