Prilled Urea

Prilled Urea

CAS Number:57‑13‑6

Synonyms: Urea; Carbamide; Aminomethanamide; Urea prills; Urea technical grade

Chemical Formula:CO(NH₂)₂

Molecular Weight:60.06 g/mol

Product Introduction

A white, free‑flowing prilled (spherical) solid with ≥98% purity and ~46% nitrogen content. Produced via high‑pressure reaction of ammonia and CO₂, then prilled into 1–2.8 mm pellets. Used extensively in fertilizers, industrial chemicals, resins, adhesives, animal feed, textile and pharmaceutical sectors.

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Physical & Chemical Properties

Property Value
Appearance White prills (1–2 mm)
Purity ≥98–99.5%
Nitrogen Content ~46%
Biuret Content ≤0.5–1.2%
Moisture ≤0.3–0.5%
pH (10% aq) ~7–10
Density (bulk) ~705–770 kg/m³ (44–48 lb/ft³)
Melting Point 132–135 °C
Solubility in Water @20 °C ~1080–1120 g/L
Bulk Color / Free‑flowing White, moderate dust, angle of repose ~27–34°

Applications

  • Fertilizer: direct soil application, irrigation additives
  • Chemical Industry: feedstock for urea-formaldehyde resins, plastics, adhesives, DEF
  • Animal Feed: protein supplement
  • Other Uses: de‑icer, laboratory reagent, textile processing

Safety & Handling

  • Non-hazardous per GHS; however, dust may irritate eyes/respiratory tract
  • NFPA Health 1 / Flammability 1 / Reactivity 0
  • Store in a cool, dry, ventilated space protected from moisture and direct sunlight

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