Chemical Name and Formula:
- Name: Urea (Carbamide)
- Formula: (NH₂)₂CO
- Appearance: White solid, available as prilled or granular form
Physical and Chemical Properties:
- Highly soluble in water
- Odorless or with a very faint ammonia smell
- Non‑toxic in pure form (although dust may irritate the respiratory system)
Industrial Production Process:
- Urea is synthesized from the reaction of ammonia (NH₃) and carbon dioxide (CO₂) under high temperature and pressure in petrochemical plants.
- Feedstock for this process is typically supplied from ammonia production units.
Applications in Iran (2024):
- Fertilizer: The largest use, due to its high nitrogen content (~46% nitrogen by weight)
- Industrial Feedstock: For manufacturing urea–formaldehyde resins, melamine, and industrial adhesives
- Special Applications: As an anti‑icing agent in Urea‑DEF solutions for reducing NOₓ emissions in diesel engine exhausts
Common Standards:
- Purity above 99%
- Biuret content below 1% for agricultural grade
- Moisture content < 0.5%
Market and Trade:
- Iran is one of the largest urea producers in the region, with significant exports to Asian, African, and South American countries.
- Price is influenced by the global fertilizer market and the cost of natural gas as feedstock.
Safety and Storage:
- Store away from moisture to prevent caking
- Dust should be controlled
- Skin contact is harmless, but ingestion of large amounts is hazardous
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