Urea 46% Nitrogen Fertilizer 46-0-0 Prilled and Granular High Nitrogen Content

Description and Specifications for Urea 46% (Prilled & Granular)

Product Description:

Urea is a solid nitrogen fertilizer with the highest nitrogen content of any solid fertilizer at 46%. It is a synthetic organic compound produced from ammonia and carbon dioxide. It is used extensively in agriculture as a nitrogen release fertilizer. The key difference between prilled and granular urea lies in the manufacturing process and the resulting physical characteristics, which affect handling, storage, and application.

1. Prilled Urea 46%

1. Description: Prilled urea is formed by dropping liquid urea from a "prilling tower" where it cools and solidifies into small, round particles as it falls. The process results in smaller, less dense, and more uniform particles compared to granular urea. Prills are more susceptible to breaking down into dust during handling and transportation.
2. Typical Specifications:
3. Nitrogen Content (N): 46.0% minimum.
4. Biuret Content: 1.0% maximum.
5. Moisture Content: 0.5% maximum.
6. Particle Size (1-2 mm): 90% minimum.
7. Hardness (Crushing Strength): Approximately 2.0 N (Newtons) per particle. Prills are softer and more fragile than granules.
8. Appearance: White, free-flowing spherical prills with a high luster.
9. Solubility: Highly soluble in water.

2. Granular Urea 46%

1. Description: Granular urea is produced by repeatedly spraying liquid urea onto a rolling seed particle in a granulator (drum or pan), building up layers to form larger, harder, and more irregularly shaped particles. This process creates a more robust product that is more resistant to crushing and dust formation, making it better suited for bulk handling, blending with other fertilizers, and mechanical application.
2. Typical Specifications:
3. Nitrogen Content (N): 46.0% minimum.
4. Biuret Content: 1.0% maximum.
5. Moisture Content: 0.5% maximum.
6. Particle Size (2-4 mm): 90% minimum.
7. Hardness (Crushing Strength): Approximately 3.0 N (Newtons) per particle or higher. Granules are significantly harder and more durable than prills.
8. Appearance: White or off-white, irregularly shaped granules.
9. Solubility: Highly soluble in water.

Key Comparative Summary:

1. Particle Size & Strength: Granular urea has larger, harder, and more durable particles. Prilled urea has smaller, softer, and more fragile particles.
2. Dust Formation: Granular urea produces less dust during handling and transport.
3. Storage & Handling: Granular urea is generally preferred for bulk handling and long-term storage due to its resistance to caking and breaking.
4. Application: Granular urea is ideal for mechanical spreaders and bulk blends. Prilled urea is perfectly suitable for direct application but is less robust.
5. Usage: Both are equally effective as a source of nitrogen once applied to the soil.