Urea Grade A
Urea is a colorless, water-soluble crystalline compound, also soluble in alcohol, liquid ammonia, and sulfur dioxide.
Urea grades are classified by application: Grade B is preferred for agricultural use, while Grade A is the standard for industrial applications. The chemical properties of urea make it essential in the production of urea-formaldehyde resins and other urea-aldehyde condensates.
| Key Parameters | Value | |
|---|---|---|
| Mass fraction of nitrogen (N), on dry basis, %, min. | 46.2 | |
| Mass fraction of biuret, %, max. | 1.4 | |
| Mass fraction of total water, %, max. | 0.6 | |
| Mass fraction of free ammonia, %, max. | 0.03 | |
Urea is produced in two commercial grades:
Grade A - Industrial grade
Used as a raw material in the production of urea-formaldehyde resins, adhesives, melamine, cyanuric acid, pharmaceuticals, and cosmetics.
Grade B - Agricultural grade
Preferred for crop fertilization. Urea contains the highest nitrogen content (46.2% N, in amide form) among all nitrogen fertilizers, making it the most economically efficient nitrogen source for a wide range of crops.
The key distinguishing parameter between grades is biuret content. Biuret is a standard by-product formed during urea synthesis. Lower biuret levels indicate higher purity and are critical for industrial applications where resin quality and polymer stability are essential.
Grade A - Industrial grade
Used as a raw material in the production of urea-formaldehyde resins, adhesives, melamine, cyanuric acid, pharmaceuticals, and cosmetics.
Grade B - Agricultural grade
Preferred for crop fertilization. Urea contains the highest nitrogen content (46.2% N, in amide form) among all nitrogen fertilizers, making it the most economically efficient nitrogen source for a wide range of crops.
The key distinguishing parameter between grades is biuret content. Biuret is a standard by-product formed during urea synthesis. Lower biuret levels indicate higher purity and are critical for industrial applications where resin quality and polymer stability are essential.
Minimum order volume: 1000 kg.
Packaging: Big-Bag containers
Shelf life: 6 months from the date of manufacture
411 Vostochny Industrial Zone, Dzerzhinsk, Nizhny Novgorod Oblast, Russia
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