Prilled Urea automotive-grade for Ad-Blue
HS Code: 3102100090
CAS No: 57-13-6
EC No: 200-315-5
MF: CO(NH2)2/ CH4N2O
Grade: SCR
Export Markets: Global
Used as a feedstock for liquid chemical agent reducing NOx concentration in diesel exhaust emissions.
About automotive-grade urea
Automotive-grade urea dissolved within deionized water is resulting in an aqueous urea solution, supporting the reduction of mono-nitrogen oxides exhaust emissions by injection into selective catalytic reduction systems of heavy-duty engines. This aqueous urea solution is standardized as AUS 32 in ISO 22241 and consequently, the technical specifications for automotive-grade urea are derived from this standard. Mainly with the introduction of new regulations and standards in connection to emissions (e.g. EURO 5 norm), the demand for AUS 32 and consequently automotive-grade urea is increasing constantly.
CHEMICAL COMPOSITION
Mass fraction of nitrogen (N) on dry basis, min | 46.2% |
Mass fraction of free ammonia (NH3), max | 0.05% |
Mass fraction of biuret, max | 0.9% |
Mass concentration: | |
– Formaldehyde, max | 15 mg/kg |
– Admixtures insoluble in water, max | 50 mg/kg |
– Phosphates, max | 1.5 mg/kg |
– Calcium, max | 1.5 mg/kg |
– Iron, max | 1.5 mg/kg |
– Copper, max | 0.6 mg/kg |
– Zinc, max | 0.6 mg/kg |
– Chrome, max | 0.6 mg/kg |
– Nickel, max | 0.6 mg/kg |
– Magnesium, max | 1.5 mg/kg |
– Sodium, max | 1.5 mg/kg |
– Aluminum, max | 1.5 mg/kg |
– Potassium, max | 1.5 mg/kg |
Mass fraction of water (Fischer method), max | 0.6 % |
PHYSICAL PROPERTIES
Granule size: | |
– less than 1 mm, max | 3% |
– 1–4, min | 90% |
PACKAGING, TRANSPORTATION, AND STORAGE
- Shipped packed in big bags (400, 700, 800 kg).
- Stored in big bags indoors in closed well-ventilated warehouses to protect it from weather exposure.
- Big bags must be transported and stored in no more than two layers.
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