Urea CAS No.57-13-6;37955-36-5
Agrochemicals 2025-03-02
Urea
CAS No.: 57-13-6 (Primary), 37955-36-5 | EINECS: 200-315-5
1. Chemical Identification
| Property | Specification |
|---|---|
| IUPAC Name | Carbamide |
| Molecular Formula | CH₄N₂O |
| Molecular Weight | 60.05 g/mol |
| InChI Key | XSQUKJJJFZCRTK-UHFFFAOYSA-N |
2. Physical Properties
| Parameter | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 132-135°C (with decomposition) |
| Density | 1.32 g/cm³ at 20°C |
| Solubility | Highly water soluble (1080 g/L at 20°C) |
3. Applications
- Agriculture:
✓ Nitrogen fertilizer (46% N content)
✓ Foliar sprays - Industrial:
✓ Urea-formaldehyde resins production
✓ Diesel exhaust fluid (DEF) for SCR systems
✓ Cosmetic ingredient - Laboratory:
✓ Protein denaturant
✓ Cryoprotectant
4. Quality Specifications
| Grade | Agricultural | Technical | Feed |
|---|---|---|---|
| Purity | ≥46% N | ≥99.5% | ≥46% N |
| Biuret | ≤1.0% | ≤0.9% | ≤0.9% |
| Moisture | ≤0.5% | ≤0.3% | ≤0.5% |
5. Packaging & Storage
- Available Forms: Prills, granules, powder
- Packaging: 25/50 kg bags, bulk bags, tank trucks
- Storage: Keep dry below 30°C
- Shelf Life: 24 months in original packaging
6. Safety Information
Hazards:
- May cause eye irritation (H319)
- Dust may irritate respiratory system
Protection:
- Wear safety glasses when handling
- Use dust masks in poorly ventilated areas
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