Urea

Urea is a white dry organic compound and a crystalline substance and has minimum of 46% nitrogen calculated in dry state. 

Urea is made by reacting carbon dioxide (CO2) with anhydrous ammonia (NH3) under pressure of 3000 psi and temperatures of around 350 deg F. Water is removed during processing and the molten matter is either converted to prills or into granules.

SHAPE OF UREA:

 

It is generally supplied in prills or crystals/grains. Although the colour of urea is white but the crystals are larger than prills.

PACKING OF UREA:

Commercial Urea is available in any desired packing. However it is generally packed in 50 kg bags or bulk/loose.

  

Prilled urea                                                 Properties

Quality specifications:                                       white prilled

Mass part nitrogen                                            46.2%

Biuret, not more than                                        1.0%

Moisture not more than                                     0.5%

Granulometry: (granules size)                           1mm to 4mm 90% min.

Free ammonia:                                                  160 pxt ppm max.

Melting point:                                                   32 degrees cen.                                                                       

 

Physical properties:

Non-radioactive, white, free flowing, free from harmful substances, 100% treated against caking

Granulated urea                                          Properties

Quality specifications                                         white granules

Nitrogen recalculated to dry                             46.2%

Biuret, not more than                                         1.0%

Water, not more than                                         0.5%

Granulometry: (granules size)                            2mm to 4mm 90% min.

Free ammonia:                                                  160 pxt ppm max.

Melting point:                                                   132 degrees cen.

Crumbliness                                                      100%

 

Physical properties:

Non-radioactive, white, free flowing, free from harmful substances coated, spherical & uniform in size, 100% treated against caking