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SINO STARCO CHEMICAL China Urea Supplier
DEF / AdBlue Feedstock Grade

Automotive Grade Urea

High-purity urea for the production of AUS 32 / DEF / AdBlue diesel exhaust fluid.

OriginChina (Qingdao loading)
ApplicationRaw material for AUS 32 / DEF / AdBlue product…
Packaging25 kg / 50 kg PP woven bags, palletized or loose
DocumentsCOA · B/L · COO · Invoice

Overview

Automotive grade urea is a high-purity solid urea used as the raw material for producing AUS 32 — the 32.5% urea solution known commercially as DEF (Diesel Exhaust Fluid) in North America and AdBlue in Europe and many other markets. The solution is injected into the exhaust stream of diesel vehicles equipped with SCR (Selective Catalytic Reduction) systems to reduce NOx emissions.

Because trace impurities in the solution can poison the SCR catalyst, automotive grade urea must be controlled more strictly than fertilizer grade material — particularly biuret content, insoluble matter and particle consistency. Buyers typically combine the granules with demineralized water under controlled conditions to produce the final solution.

SINO STARCO CHEMICAL supplies automotive grade urea from Chinese production sources to DEF/AdBlue blenders and distributors. Every shipment is supported by a manufacturer COA, and third-party inspection (SGS, CIQ or buyer-nominated) can be arranged before loading on request.

Specifications

ItemTypical Specification
Total Nitrogen (N)≥ 46.2%
Biuret≤ 0.9%
Moisture (H₂O)≤ 0.5%
Free AmmoniaLow — controlled per COA
Particle Size0.85 – 2.80 mm, high uniformity
AppearanceWhite prills / granules, free-flowing

ⓘ Typical specification values for reference. The Certificate of Analysis issued for the actual production lot prevails; final contract specification is agreed in writing before order.

Applications

  • Raw material for AUS 32 / DEF / AdBlue production
  • SCR (Selective Catalytic Reduction) systems for trucks, buses and off-road diesel equipment
  • Blending and distribution of diesel exhaust fluid

Packaging

  • 25 kg / 50 kg PP woven bags, palletized or loose
  • 1000 kg jumbo bags (FIBC)
  • Container loads (20’GP / 40’HQ) with standard loading weights subject to bag type and destination regulations

Quality Control

  • Manufacturer COA issued for every production lot
  • Third-party inspection (SGS / CIQ / buyer-nominated agency) available before shipment
  • Samples available for buyer testing before contract
  • Moisture-proof packaging; container interiors inspected before loading

Export & Loading

Bagged cargo ships in 20’GP / 40’HQ containers from Qingdao with lined floors, even weight distribution and door-end bracing. Large-volume contracts can be coordinated for bulk vessel loading with hold inspection and sampling during loading. Loading photos from real shipments are available on request and shown in our export cases.

FAQ

Is automotive grade urea the same as DEF / AdBlue?
No. Automotive grade urea is the solid raw material. DEF (also called AdBlue or AUS 32) is a finished 32.5% urea solution made by dissolving high-purity urea in demineralized water. We supply the solid urea that blenders use to produce the solution.
What documents do you provide with each shipment?
Commercial invoice, packing list, bill of lading, certificate of origin and the manufacturer COA. Third-party inspection certificates can be arranged on request.
Can you supply samples before we place an order?
Yes. Samples can be couriered for laboratory testing before you confirm a contract. Contact us with your target specification and quantity.
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