Urea CAS No.57-13-6;37955-36-5

Urea 

CAS No.: 57-13-6 (Primary), 37955-36-5 | EINECS: 200-315-5

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1. Chemical Identification

Property	Specification
IUPAC Name	Carbamide
Molecular Formula	CH₄N₂O
Molecular Weight	60.05 g/mol
InChI Key	XSQUKJJJFZCRTK-UHFFFAOYSA-N

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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)

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3. Applications

Agriculture:
✓ Nitrogen fertilizer (46% N content)
✓ Foliar spraysIndustrial:
✓ Urea-formaldehyde resins production
✓ Diesel exhaust fluid (DEF) for SCR systems
✓ Cosmetic ingredientLaboratory:
✓ Protein denaturant
✓ Cryoprotectant

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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%

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5. Packaging & Storage

Available Forms: Prills, granules, powderPackaging: 25/50 kg bags, bulk bags, tank trucksStorage: Keep dry below 30°CShelf Life: 24 months in original packaging

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6. Safety Information

Hazards:

May cause eye irritation (H319)Dust may irritate respiratory system

Protection:

Wear safety glasses when handlingUse dust masks in poorly ventilated areas

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