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Urea

Name: Urea
SKU: 0

Urea is a neutral quick-acting fertilizer with a chemical formula of CO(NH2)2 and a nitrogen content of up to 46%. ‌‌Urea is a white crystal that is tasteless and odorless, easily soluble in water, ethanol and benzene, and slightly soluble in ether and chloroform. The nitrogen content of urea is the highest among solid nitrogen fertilizers, which makes it a highly efficient nitrogen fertilizer. After application, no harmful substances will remain in the soil, and it has little destructive effect on the soil, so it is widely used. The application methods of urea include as a base fertilizer or topdressing. Urea is decomposed into ammonium carbonate by microbial action in the soil, and ammonium carbonate is easily absorbed by plants, so urea has a rapid fertilizer effect. However, the utilization rate of urea is low, about only 20%-30%, and most of the urea applied to the soil will be lost or volatilized with water. In order to improve the utilization rate of urea, it can be carried out by deep application in advance or foliar spraying. The method of foliar spraying of urea is simple and effective, which can make urea quickly enter the leaves and participate in various metabolic processes of crops, significantly improving the utilization rate of urea.

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product description

WHAT IS DIESEL EXHAUST FLUID (DEF)

Diesel Exhaust Fluid (DEF) is a non-toxic, high purity solution comprised of 32.5% urea and 67.5% de-ionized

water for specific use in Selective Catalytic Reduction (SCR) systems. Using this fluid in diesel-powered vehicles, such as

trucks, buses, and tractors, helps to reduce the amount of nitrogen oxides (NOx) emitted into the air by 90%. It is not a fuel additive and must be filled into the dedicated Diesel Exhaust Fluid tank on your diesel vehicle.

SCR/DEF grade urea, automotive grade urea high purity

adblue grade urea

Nitrogen: 46.6%

Moisture: 0.35%

Biuret:0.7%

Particle size(0.85-2.80mm): 94%

Urea 46% or Urea N 46% or Urea prilled or Industry Urea

CAS:57-13-6

Molecular Formula:CH4N2Ol

Molecular Weight:60.06

Melting point:132-135C

Relative density:1.335g/ml at 25C(lit)

How Diesel Exhaust Fluid Works

When injected into the exhaust stream with a specialized dosing module, DEF vaporizes, leaving amonia molecules en route to the catalytic converter; once there, it converts NOx molecules into harmless nitrogen and water vapor-making for cleaner emissions. Making sure you do not run out of DEF in an SCR equipped truck is simple - watch the DEF gauge, which is part of the diesel fuel gauge, for when it is time to refill. DEF is stored in a dedicated tank next to the fuel tank on the driver's side. The tanks range in size from 6 to 23 gallons depending on the truck's application.

Automotive Grade Urea

Automotive Grade Urea is a special, uncoated version of highest purity. It is a main component of urea solutions like Diesel Exhaust Fluid or AUS40/45 which are used within SCR-systems for the reason of NOx reduction. It is the only type of Urea that meets the ISO 22241 specification and the only suitable Urea for the production of DEF/AUS32/ARLA32 solutions. For meeting the ISO 22241 the Urea needs to be of highest purity/quality.

Specification

According to ISO22241 standard
Test Items	Unit	specification
T-nitrogen	%	>46
moisture	%	<0.5
Biuret	%	<0.87
alkalinity(NH3)	%	<0.05
aldehyde	mg/kg	<15.4
insoluble matter	mg/kg	<61.5
PO4	mg/kg	<1.5
Ca	mg/kg	<1.5
Fe	mg/kg	<1.5
Cu	mg/kg	<0.6
Zn	mg/kg	<0.6
Ni	mg/kg	<0.6
Cr	mg/kg	<0.6
Mg	mg/kg	<1.5
Na	mg/kg	<1.5
K	mg/kg	<1.5
Al	mg/kg	<1.5

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FAQ

1. Q: What fine chemical products does your company specialize in, and which industries do they serve?
Answer: Our company specializes in fine chemical products—including rubber and plastic additives, coating additives, composite material additives, and single- or multi-element fertilizers—and offers custom chemical manufacturing services. Our products are widely used in sectors such as coatings and inks, plastics, construction materials, textiles, advanced materials, agriculture, and water-saving irrigation, meeting the formulation and production requirements of diverse clients.

2. Q: Do you offer product customization for specifications and formulations? Is technical support available?
A: Yes, we support customization of specifications and formulations. Backed by a professional R&D team, we can adjust product parameters and formulas to suit specific operating conditions and industry standards. We also provide comprehensive technical support, including pre-sales product selection and post-sales application guidance.

3. Q: Can you provide complete quality inspection reports and relevant qualification documents with shipments?
A: We provide a full set of customs clearance and compliance documentation to meet both domestic and international trade standards. Full traceability is maintained for every product batch.

4. Q: What is the minimum order quantity (MOQ), and what is the typical lead time?
A: We support small-batch trial orders for standard products with flexible MOQs. Orders for in-stock items ship within 3–7 business days; lead times for large-volume or custom orders are confirmed based on production schedules to ensure timely delivery and maintain our clients' production continuity.

5. Q: Are your products available for export? Which countries and regions do you primarily serve?
A: We possess full import-export qualifications and a robust logistics network for international trade. Our products are exported in full compliance with regulations. Our key markets include Southeast Asia, the Middle East, Africa, and Europe, where we provide stable supplies and one-stop export delivery services to overseas clients.

6. Q: How do you ensure consistent product quality? What is your after-sales process for quality issues?
A: We implement end-to-end quality control, strictly monitoring raw materials, production, testing, and warehousing to ensure product stability. In the event of a quality issue, we respond quickly to verify the situation and offer solutions such as returns, replacements, reshipments, or technical adjustments to safeguard our clients' interests.

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