Urea is manufactured from anhydrous ammonia (NH3) in most commercial nitrogen fertilizers. Friedrich Wohler’s discovery, in 1828, that Urea can be produced from inorganic starting materials, was an essential conceptual milestone in chemistry. Urea 46% nitrogen a white crystalline solid containing 46% nitrogen, is widely used in the agricultural industry as an animal feed additive and fertilizer.

Fertilizer Urea can be purchased as prills or as a granule material.

Urea Fertilizer specification, Granular, and Prill

Compared to the granular and urea fertilizer, we must say that the N content is in the same range. Prill fertilizer is usually softer than granola. Usually, the size of a pearl is between 1 up to 2/4 mm but Granule is between 2 up to 4 mm. Some farmers prefer granules because they are gradually absorbed, and others think prill is better for faster absorption.

Prilled Urea specification


   Units           Test Method   SPEC value

N2 content

Wt% BS DIN EN 15478

Min 46

Biuret content

Wt% BS DIN EN 15479

Max 1.0


Wt% ISO 760

Max 0.3

Particle size(1-2.4mm)

% ISO 8397

Min 90

Urea-formaldehyde (UF) % H.F.T 1.6 & SBB 0071-02-E

Max 0.4

Urea granule specification

Physical & chemical Property


Biuret (Wt%) MAX


Water (Wt%) MAX

0.5 (max)

Formaldehyde (Wt%) MAX


Total nitrogen (Wt%)


NH3 (Wt%)


Total nitrogen (min Wt%)


Urea (Wt%)


Bulk density (g / lit)

0.73 – 0.77

Physical state

White granules solid


Size distribution

2-4mm 90%wt (min)
Crushing strength (kg /granule)

3.0 kg min on 3.15 mm dia. Granule size


Technical usage of Urea 

Urea for glue

This is a base component for the furniture, construction, and wood industries that manufacture panel boards, laminated floors…

Urea for pharmaceutical applications

Urea for chemical synthesis is used for the production of medical drugs, dyes, disinfectants as well as fish oils or omega 3.

Urea for healthcare and cosmetics

Urea is extensively used in a variety of moisturizers, shampoos, and lotions. The manufacturers of healthcare and cosmetics products can provide Urea from Raiva company for their production processes.

Urea for animal feed

Dairy cows need 25g urea/per 100kg bodyweight per day. calves need 30 g urea per 100kg of body weight per day. Urea as a feed additive is intended to be mixed with premixtures, feeding kinds of stuff, and water.

Urea for the production of yeast

Urea is used in the fermentation process for the biofuel industry.