Appearance

White or slightly coloured

granules

Nitrogen in dry substance, % min

46.0

Biuret content, % max

1.0

Water content mass, % max:

- hygroscopic

0.3

- total

0.5

Friability, %

100

Granulometry:

Percentage of granules:

- 1 to 4 mm, min

90

- 2 to 4 mm, min

70

- up to 1 mm, max

3

- 6 mm sieve residual, max

none

Anti-caking treatment, %:

Novoflow/Flotigam

0.03-0.05 and/or

UF Resin

0.3-0.5

Static granule strength, N/granule (kgs/granule), min

0.7

Description Process

 Urea is produced using ammonia and carbon dioxide.

Applications

Most popular high-analysis nitrogen fertiliser in the world, with min. 46.0% nutrient content. Raw material for urea-ammonium nitrate solution.

Packaging and Transportation

Urea is usually treated with conditioning agents to preserve its properties.

Urea is sold to customers pre-packaged (in 50-kg polypropylene bags), in big bags for bulk cargo (400- and 800-kg); it is also delivered in bulk in covered self- unloading fertiliser hopper cars. Bulk urea is also transported in covered decked sea vessels or in specially equipped road vehicles with the cargo covered in the body.

The temperature of prilled urea before packing shall not exceed 50 0C.

Specialised flexible, universal urea containers may be transported by road without any cover.

Storage

Urea is stored indoors in well-ventilated warehouses to protect it from weather exposure. Urea containers and bags may be stored outdoors.

In case of bulk storage, urea must not mix with any other fertilisers.

Guaranteed shelf life for urea is 6 months and 2 years for urea packaged for retail sales upon the manufacture date.

Safety

Requirements

Under normal conditions, urea is non-flammable, fire and explosion resistant.