| Chemical Name | Automotive Grade Urea Solution (SCR Urea / DEF) |
| Composition | 32.5% Urea (CO(NH₂)₂) + 67.5% Deionized Water |
| CAS No. | 57-13-6 (Urea) / 7732-18-5 (Water) |
| EINECS No. | 200-315-5 (Urea) |
| Common Aliases | Diesel Exhaust Fluid (DEF), AdBlue®, AUS 32, Arla 32 |
| Packaging | 10L / 20L HDPE bottles, 200L drums, 1000L IBC totes, bulk road tankers |
| Certifications | ISO 9001, ISO 22241-1, SGS Tested, Non-Dangerous Goods |
Products
Automotive Grade Urea (SCR Urea)
PRODUCTS
- Product Specialist
- Phone：+86 18766652660
- WhatsApp:+8618766652660
- Email:Eva@raisonchemical.com
CONTACT US
Automotive Grade Urea (SCR Urea)
Polymer Coated Urea (PCU) 42-0-0 Product Description
Raison Chemical —— SCR UREA (Diesel Exhaust Fluid / DEF, AdBlue® Equivalent) is a high-purity 32.5% urea solution engineered exclusively for Selective Catalytic Reduction (SCR) systems in diesel engines. Fully compliant with ISO 22241-1, DIN 70070, and API CJ-4 standards, it converts harmful nitrogen oxides (NOₓ) into harmless nitrogen gas and water vapor, enabling diesel vehicles to meet Euro VI, EPA 2010, and China VI emission regulations. With ultra-low impurity levels and strict quality control, Raison SCR UREA prevents nozzle clogging, catalyst poisoning, and system downtime for commercial fleets, logistics operators, and passenger vehicle owners.
Technical Specifications Table
| Parameter | Specification | Test / Standard |
| Urea Content | 32.5% ± 0.7% (mass fraction) | ISO 22241-1 / DIN 70070 |
| Biuret Content | ≤ 0.6% | Spectrophotometric |
| Aldehydes (Formaldehyde) | ≤ 5 mg/kg | ISO 22241-2 |
| Insoluble Matter | ≤ 20 mg/kg | Filtration Method |
| Alkalinity (as NH₃) | ≤ 0.2% | Titration |
| Density (20°C) | 1087.0 – 1093.0 kg/m³ | ISO 12185 |
| Refractive Index (20°C) | 1.3814 – 1.3843 | ISO 5661 |
| Heavy Metals (Pb, As, Cd) | ≤ 0.1 mg/kg each | ICP-MS |
| Freezing Point | -11°C (12.2°F) | ISO 22241-1 |
| pH (10% solution) | 7.0 – 9.0 | ISO 3423 |
| Radiation | Non-radioactive | — |
Key Benefits of Raison SCR Urea
- Full Regulatory Compliance: Meets all global SCR system requirements (ISO 22241, DIN 70070, Euro VI, EPA Tier 4) – accepted by all major truck, bus, and equipment manufacturers (Daimler, Volvo, Cummins, Caterpillar, etc.).
- Ultra-Low Impurities: Strict control of biuret (<0.3%), aldehydes, and heavy metals prevents nozzle clogging, catalyst poisoning, and SCR system downtime – reduces maintenance costs by up to 40%.
- Freeze-Thaw Stability: Freezes at -11°C, but returns to full specification after thawing without sedimentation or composition changes – no need for constant heating in cold climates.
- High Purity Deionized Water: Made with 18MΩ·cm deionized water to eliminate mineral deposits and scaling in SCR injectors and catalysts.
- Flexible Packaging: Available in retail bottles (10L/20L) for end-users, IBC totes (1000L) for fleet operators, and bulk road tankers for refueling stations – all containers are UV-resistant and leak-proof.
- Export-Ready Logistics: Classified as Non-Dangerous Goods (UN3082 exempt) for hassle-free global shipping – every batch ships with full SGS/CIQ inspection and Certificate of Conformity.
At-a-Glance Specs (For Quick Reference)
| Feature | Raison Standard |
|---|---|
| Urea Concentration | 32.5% (31.8–33.2% tolerance) |
| Compliance Standards | ISO 22241-1, DIN 70070, GB 29518 |
| Biuret Content | ≤ 0.3% (Ultra-Low) |
| Freezing Point | -11°C (Recovers fully after thawing) |
| Shelf Life | 18 Months (Unopened, stored properly) |
| Grade | Automotive Grade (SCR System Compatible) |
| Origin | China (Shandong/Qingdao) |
| Export Documents | COA, MSDS, SGS/CIQ Inspection, Certificate of Conformity |
Application Methods
SCR System Refilling: Add Raison SCR Urea exclusively to the vehicle’s dedicated DEF/Urea tank – NEVER mix with diesel fuel, water, or other fluids. Clean the filler neck with a lint-free cloth before refilling to prevent contaminant ingress. Fill until the automatic shut-off triggers (do not overfill).
Cold Climate Use: If the fluid freezes at temperatures below -11°C, allow it to thaw naturally at ambient temperature or via the vehicle’s built-in tank heater. Do NOT use open flames or electric heaters to speed up thawing – this damages the fluid and packaging.
Dispensing Equipment: Use only dedicated DEF dispensers, hoses, and nozzles – cross-contamination with diesel or other chemicals will void SCR system warranties. Rinse equipment with deionized water if switching between fluid batches.
Fleet Management: For bulk users, monitor urea tank levels daily – running out of fluid will trigger engine derating (reduced power) to limit NOx emissions, stranding vehicles until refilled.
SCR Urea vs Generic/Low-Purity Urea: Why Cheap Alternatives Destroy SCR Systems
This comparison highlights the hidden costs and irreversible damage caused by non-compliant generic urea. Raison SCR Urea meets strict ISO 22241-1 standards to protect your SCR system – generic alternatives cut corners on purity, leading to costly downtime and repairs.
| Performance Metric | Raison SCR Urea (ISO 22241 Certified) | Generic/Low-Purity Urea |
|---|---|---|
| Urea Concentration | 31.8–33.2% (32.5% nominal, stable) | 28–35% (unstable, varies by batch) |
| Biuret Content | ≤ 0.3% (ultra-low, no crystallization) | 1.0–3.0% (high, |
Packing&Shipping
| Packaging Type | Weight Options |
|---|---|
| Woven PP Bags | 9.9 kg, 50 kg |
| Jumbo Bags | 1000 kg (1 MT) |
| Bulk Delivery | Available upon request |
1) What products does Raison Chemical mainly supply?
A: We focus on two core categories:
Agricultural fertilizers: Urea (46% N, prilled/granular), NPK compound fertilizers, Potassium Nitrate (technical/agri grade) and related potash/blended fertilizers.
Industrial & hazardous chemicals: organic peroxides/initiators (MEKP, BPO, etc.), corrosive chemicals (e.g. Caustic Soda flakes/liquid, acids), and associated inorganic salts/industrial materials.
We position ourselves as an integrated supplier covering sourcing, quality check, repacking/labeling, warehousing coordination and export documentation.
2) Are your chemicals “genuinely compliant” for export? What documents do you provide?
Q: How do you guarantee compliance and smooth customs clearance?
A: Compliance is non-negotiable in our segment. For each shipment we can prepare the standard export document set required by most importers:
COA / MSDS(SDS) per batch
Certificate of Origin
Commercial Invoice / Packing List
When needed: SGS/third-party inspection, quantity & quality reports, and additional certificates (depending on destination & product)
For hazardous goods (DG), we work within the required DG framework: proper UN marking, DG declarations, and DG-class aware logistics booking from Qingdao/Shanghai/Tianjin.
3) Potassium Nitrate is a controlled / hazardous product—can you legally supply and export it?
A: Yes—KNO₃ is part of our handled range, but we treat it as what it is: a 5.1 oxidizer and a controlled/regulated item in many jurisdictions. We only offer it when the inquiry matches a lawful end-use and the buyer can work with proper DG procedures (correct documentation, compliant packaging, and DG-capable carriers). If you are unsure about your local import permit/license path, tell us your country & HS code requirement and we’ll align the paperwork accordingly.
4) Do you support custom packaging / OEM private labeling?
A: Yes. Common options include 25 kg / 50 kg PP woven + PE inner, and FIBC/Jumbo bags (500/1000 kg). We can arrange OEM bag printing (your logo, multi-language labels, lot/batch info). For hazardous items, any “custom pack” must still respect DG/UN packaging rules—so we’ll confirm which artwork/labels are feasible before production.
5) What are your typical lead times and shipping ports?
A: After deposit & artwork confirmation (if any), typical windows are roughly:
In-stock / spot arrangements: 7–15 days to readiness
Made-to-order / special specs / OEM bags: 15–30 days (depends on spec, inspection, DG queue)
Main export gateways: Qingdao / Shanghai / Tianjin, chosen by cargo type, container equipment and routing cost.
6)What is your MOQ and payment terms?
A: For most lines we quote against 1×20ft FCL as the practical MOQ (to keep unit cost & logistics sane). Smaller LCL lots are possible case-by-case—especially for DG where carriers/permits drive feasibility.
Payment norm: T/T (30% deposit + 70% against copy docs / BL); other terms discussed per client profile & inspected track record.
7) Can I get samples before placing a full container order?
A: Yes. We can arrange small representative samples (often courier / local express) for your lab check. For hazardous items, sample channel must follow DG courier rules—sometimes that means higher cost or an alternative arrangement. Sample cost & freight are usually on buyer’s account; refundable against first container in many cases.
Leave Your Message
Still not sure which spec/pack fits your market? Contact Raison Chemical with your destination country, HS code and monthly volume—we’ll propose a compliant plan and lead time.
Why Choose Raison® Chemical
· Licensed DG Exports – Full permits, zero compliance risks.
· Integrated Supply – Agro & industrial chemicals, one source.
· Certified Quality – SGS/ISO assured with full COA/SDS.
· Qingdao Logistics – Faster shipping, lower freight costs.
· Flexible Packaging – OEM branding tailored to your market.
