Urea

    • Product Name: Urea
    • Chemical Name (IUPAC): Carbamide
    • CAS No.: 57-13-6
    • Chemical Formula: CO(NH2)2
    • Form/Physical State: Solid
    • Factroy Site: No. 1417 Dianchi Road, Xishan District, Kunming City, Yunnan Province, China
    • Price Inquiry: sales3@ascent-chem.com
    • Manufacturer: Yunnan Yuntianhua Co., Ltd.
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    Specifications

    HS Code

    437068

    Chemical Name Urea
    Chemical Formula CH4N2O
    Molar Mass 60.06 g/mol
    Appearance White crystalline solid
    Melting Point 133°C
    Solubility In Water Very soluble
    Odor Odorless
    Density 1.32 g/cm³
    Cas Number 57-13-6
    Ph Of 10 Percent Solution 7.2-7.4
    Boiling Point Decomposes before boiling
    Uses Fertilizer, animal feed, chemical industry
    Stability Stable under normal temperatures and pressures

    As an accredited Urea factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Application of Urea

    Purity 46%: Urea Purity 46% is used in agricultural fertilization, where it provides a high nitrogen supply for enhanced crop growth and yield.

    Granular Size 2-4mm: Urea Granular Size 2-4mm is used in broad-acre spreading applications, where it ensures even nutrient distribution and efficient soil absorption.

    Low Biuret (<0.5%): Urea Low Biuret (<0.5%) is used in foliar spray fertilizers, where it minimizes toxicity risk and improves leaf nutrient uptake.

    Technical Grade: Urea Technical Grade is used in diesel exhaust fluid (DEF) production, where it facilitates precise reduction of NOx emissions.

    Melting Point 132°C: Urea Melting Point 132°C is used in resin manufacturing, where consistent thermal properties allow stable polymer formation.

    Prill Form: Urea Prill Form is used in fertilizer blending operations, where optimal flowability reduces caking and maintains mix uniformity.

    Molecular Weight 60.06 g/mol: Urea Molecular Weight 60.06 g/mol is used in laboratory reagent applications, where it ensures predictable reaction stoichiometry.

    Stability Temperature up to 60°C: Urea Stability Temperature up to 60°C is used in storage and transport in warm climates, where product integrity and performance are preserved.

    Feed Grade: Urea Feed Grade is used in livestock nutrition supplementation, where it provides a reliable non-protein nitrogen source for ruminant digestibility.

    Packing & Storage
    Packing Urea is commonly packaged in 50 kg white woven polypropylene bags, labeled with product name, purity, handling, and safety information.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Urea involves packing approximately 25 metric tons in 1,000 kg jumbo bags, securely sealed for transport.
    Shipping Urea is shipped in solid form, typically as prills or granules, using bulk bags, drums, or in bulk via truck, rail, or ship. Packaging must be moisture-proof to prevent caking or degradation. Proper labeling and documentation are required, but urea is not classified as hazardous for transportation.
    Storage Urea should be stored in a cool, dry, and well-ventilated area away from moisture, direct sunlight, and incompatible materials such as strong oxidizers and acids. The storage containers must be tightly sealed and made of materials that resist corrosion. Urea is hygroscopic and can easily absorb moisture from air, so minimizing exposure to humidity is essential to prevent clumping and degradation.
    Shelf Life Urea typically has a shelf life of around 2 years when stored in a cool, dry place in a tightly sealed container.
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    More Introduction

    Urea: Practical Value Backed by Experience in Chemical Manufacturing

    Understanding Urea from the Manufacturer's Perspective

    Long before urea became a staple in modern agriculture and industry, its utility was discovered right on the factory floor. Our process has evolved over years of testing, real-world feedback, and direct conversation with the agronomists, soil scientists, and process engineers who put this white granule to work in their fields and factories. From the raw feedstocks of ammonia and carbon dioxide, we manufacture pure urea that serves both the land and the production line.

    Physical Properties Matter

    As the production team, we focus on two forms: prilled and granular urea. Each batch rolls out with careful attention to size, purity, and moisture level. Granular urea tends to hold together better during long hauls and storage in humid conditions, while prilled urea, with its smoother surface and smaller size, spreads more evenly in many dryland applications. By choosing the right method for your process, you keep clumping at bay, boost flow rates, and streamline blending with other inputs.

    The Numbers Behind Consistency

    Our urea typically clocks in at 46% nitrogen by weight. Most nitrogen-hungry crops depend on steady access to available N, and our technicians monitor every stage for consistency. Even modest contamination or moisture spikes can cut returns in the field or cause headaches in industrial processing. We test and retest each shipment for purity, using time-tested sampling and real-time analysis, to stop off-spec batches before they reach the bagging line. This isn’t just quality control for compliance—it’s how we protect your investment and ours.

    Application Across Sectors

    Urea spends most of its working life as a fertilizer. In our experience, crops like maize, rice, and wheat draw down their highest nitrogen demand in narrow windows, so timely top-dressing becomes crucial. The high nitrogen content per kilogram means less hauling, lower labor costs per acre, and more flexibility for spray rigs or spreaders. For industrial users, such as resin producers or those running NOx reduction systems, urea acts as a reactant and a feedstock precisely because it dissolves readily in water and integrates seamlessly into controlled reactions.

    Tackling Handling and Storage Challenges

    Years of operation have taught us what keeps urea reliable post-manufacture. Moisture remains the big troublemaker, driving caking and product loss. We invest in well-sealed packaging, rapid cooling methods at the pelletizer, and temperature-controlled warehousing, because outdoor piles or torn sacks can turn high-quality urea into a sticky mess. Some buyers request anti-caking agents; others prefer to skip additives for certain manufacturing lines. We work closely with clients to strike the right balance for their workflow.

    What Sets Urea Apart

    Compared to ammonium nitrate or sulfate, urea packs more nitrogen in every ton shipped. This simplifies logistics. Field crews spend less time refilling spreaders. Unlike liquid ammonia, urea sidesteps the hazards and regulatory burdens that come with high-pressure tanks. In terms of plant safety and operator comfort, few products handle with fewer headaches. In the feed additive business, urea supports the protein demand of ruminant livestock, but only when used with respect for proper mixing and dosage—a lesson learned over decades of close industry cooperation.

    Model, Grade, and Fit for Application

    We label each run with clear lot numbers, date codes, and detailed N-content certificates. For ag, we focus on technical grade with low biuret content, ensuring sensitive crops avoid toxicity. Industrial lines often call for upgrades in purity and fluidity. By adapting temperature controls and precise filtration at the plant, we accommodate specialty grades for resins, plastics, and diesel exhaust fluid preparation. Trading on reputation alone won’t cut it; buyers come back when each shipment performs on spec and meets their operational standards every time.

    Direct Feedback Shapes Product Improvements

    Many of our process changes have come directly from customer problems. Input from equipment operators about bridging in bins, or reports of uneven field application due to dust or fines, drive us to adjust crushing, cooling, and sifting stages. That’s the practical side of running a urea plant—you can’t just make to a paper standard; you need input from the boots on the ground. Chemical engineers are only part of the story; warehouse managers, truck drivers, and farmers round out the discussion.

    Environmental Responsibility and Urea Use

    Supplying nitrogen is only half the equation. All manufacturers face scrutiny for nitrate runoff and volatilization, especially in regions prone to heavy rain or wind. We partner with agricultural extension services and research farms to demonstrate the value of split applications, inhibitors, and soil testing. Some seasons require shifting granule size or adding coatings, based on weather and market needs. We also optimize purifier lines at the plant to recover dust and off-gas, keeping emissions and product losses to a minimum.

    Safe Handling: Hard Lessons and Smart Practices

    Years in the business bring home the importance of clear instructions and shared best practices. Urea doesn’t carry the same fire or explosion risks as some fertilizers, but it creates stubborn buildup in machinery if operators try to cut corners on cleanup. Training on worksite ventilation and protective gear lowers health risks from dust, especially for bulk powder users. Our team routinely visits facilities to help troubleshoot, provide samples for equipment tuning, and offer honest feedback where blending or conveying needs work.

    Differences Between Prilled, Granular, and Liquid Urea

    Granular urea’s coarse texture travels farther with less wind drift, especially in field spreaders built for big acreage. Prilled versions, easier to blend with smaller micro-nutrient carriers, usually suit smaller, precision jobs. Liquid urea blends—like UAN solutions—speed up foliar feeding and offer flexibility for tank-mix applications, but limit storage life and call for corrosion-resistant tanks. Every product suits a purpose; having made, stored, and shipped each, we know those differences shape efficiency in use.

    Troubleshooting in Agriculture and Industry

    Uptake efficiency stands tall in the feedback we get from growers. Urea remains vulnerable to ammonia losses where soil pH runs high or fields dry quickly after spreading. In partnership with researchers and farmers, we’ve recommended shallow incorporation or evening applications before rain to maximize returns per kilo applied. Industrial customers, on the other hand, count on consistent dissolution—clumpy or contaminated product stalls batch cycles and eats into yields. We maintain close tolerances and invest in sieving improvements based on customer batch reports. The more feedback we get, the more precise our process control becomes.

    Reducing Environmental Impact

    Modern production demands stewardship. We cut water and energy use through heat integration—using byproduct steam and recycling process water wherever possible. Dust collectors and scrubber systems knock back point-source emissions on the factory floor. As a manufacturer, this responsibility ties directly to the continued ability to supply global markets facing tighter standards. We also source raw materials responsibly; ammonia, for example, often comes from plants using captured carbon dioxide, reducing the footprint per ton of finished urea shipped.

    Future Trends in Urea Manufacturing

    Decades at the factory have shown us how demands shift. More buyers now seek coated or slow-release urea pelletized to release nitrogen in step with plant need. We’ve integrated precision spray equipment and advanced coating drums to respond. There’s growing interest in biodegradable coatings and smarter nitrogen stabilizers, which reduce runoff and extend availability. On the industrial front, newer applications in diesel exhaust aftertreatment and resin synthesis require tighter purity controls than ever before.

    Balancing Price Volatility and Security of Supply

    Feedstock running costs and shipping keep our logistics team on high alert. Each contract season, we work to balance spot market swings with stable output schedules and lean warehouse management. Maintaining close ties with ammonia and carbon dioxide suppliers ensures reliable uptime. Customers who rely on just-in-time deliveries for their blending lines expect open communication and honest forecasting—a lesson we learned back in seasons with unexpected rail disruptions and port slowdowns.

    Learning from the Past—Building for the Future

    Walking the factory lines, talking to transport crews, responding to agronomist site visits—these routines teach far more about urea than any book ever could. Product improvement keeps pace with field and customer input, backed by lab analysis and tech investments, but never losing sight of the practical demands and daily pressures on buyers and end users. Our plant continues to change and adapt, always driven by the people who count on each batch to deliver.

    Solutions for Next-Generation Urea Users

    We expect questions about smart fertilizers, integrated nutrient management, and digital inventory tracking. Over half the farmers we meet track yields by field, not just by acre, and that information feeds back into our product development cycles. We work with customers on tailored logistics, mixed loads, and flexible packaging. Change at the factory is constant; we’re ready to try new anti-caking agents, invest in upgraded process control, or help design pilot trials for new urea blends as sectors demand.

    Operational Collaboration Drives Success

    We’ve forged better products through open door policies for buyers and industry partners. On-site demonstrations, test runs for new storage technologies, and collaborative problem-solving sessions help keep us at the cutting edge. Each challenge, whether it comes from shipment delays or the need for field-specific blends, offers a chance to learn and improve. Our internal teams work in tandem with external users to make sure the product that leaves the plant keeps its promise, whether it’s being spread across a thousand-acre field or metered into a chemical process.

    Addressing Myths and Setting Expectations

    Many concerns about urea trace back to confusion about application timing, humidity in handling, or the risk of over-application. We share decades of crop field and industrial feedback to clear up misunderstandings. Farmers once feared Urea would “burn” crops if rain didn't follow fast enough; shared trials showed that correct placement, timing, and modest rates prevent most issues. Misuse in feed or improper blending in manufacturing still present risks, so ongoing training and transparency with end-users stay high on our priority list.

    Value Beyond the Product—A Commitment to Partnership

    Our role doesn’t end once urea ships out. We field questions through every season, help analyze field returns, trouble-shoot loading logistics, and swap ideas about new efficiency projects. This partnership approach positions us not simply as suppliers but as allies in the drive for higher productivity, safety, and long-term sustainability. Years of shared problem-solving build trust stronger than any marketing claim.

    Looking Ahead with Real-World Experience

    Our perspective comes from hands-on production, close customer ties, and lessons learned along the way. Each batch of urea reflects both the legacy of chemical craftsmanship and a constant pursuit of improvement. Whether you manage an agricultural cooperative, run an industrial plant, or engineer specialty chemicals, our dedication to reliability, open feedback, and service stands firm. Urea isn’t just a commodity to us—it’s a craft shaped by decades of real-world encounters and a commitment to meeting tomorrow’s demands.