N-Butane

    • Product Name: N-Butane
    • Chemical Name (IUPAC): Butane
    • CAS No.: 106-97-8
    • Chemical Formula: C4H10
    • Form/Physical State: Compressed Gas
    • Factroy Site: Juhua Central Avenue, Kecheng District, Quzhou City, Zhejiang Province
    • Price Inquiry: sales9@bouling-chem.com
    • Manufacturer: Zhejiang Juhua Co., Ltd.
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    Specifications

    HS Code

    742043

    Chemicalname N-Butane
    Chemicalformula C4H10
    Molecularweight 58.12 g/mol
    Casnumber 106-97-8
    Physicalstate Gas (at room temperature)
    Boilingpoint -0.5°C
    Meltingpoint -138.4°C
    Density 2.48 kg/m³ (at 0°C, 1 atm)
    Vaporpressure 2.1 bar (at 20°C)
    Flammability Highly flammable
    Odor Odorless (or gasoline-like in high concentrations)
    Solubilityinwater 17.8 mg/L (at 25°C)
    Autoignitiontemperature 405°C
    Explosionlimits 1.8 - 8.4% (in air)
    Unnumber 1011

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

    Application of N-Butane

    Purity 99.5%: N-Butane with purity 99.5% is used in aerosol propellants, where superior atomization and consistency in spray performance are achieved.

    Boiling Point -0.5°C: N-Butane with a boiling point of -0.5°C is used in refrigeration systems, where rapid phase change enhances cooling efficiency.

    Molecular Weight 58.12 g/mol: N-Butane with a molecular weight of 58.12 g/mol is used in calibration gases, where accurate gas mixture preparation is ensured.

    Low Sulfur Content <10 ppm: N-Butane with low sulfur content <10 ppm is used in fuel blending, where sulfur emissions are minimized to meet regulatory standards.

    Vapor Pressure 2.1 bar (20°C): N-Butane with vapor pressure 2.1 bar at 20°C is used in lighters, where reliable ignition and controlled discharge are enabled.

    Stability Temperature up to 50°C: N-Butane stable up to 50°C is used in portable stoves, where safe storage and handling under ambient conditions are supported.

    Odorless Grade: N-Butane with odorless grade is used in pharmaceutical extraction processes, where product purity and sensory neutrality are maintained.

    Isomer Content >95% Normal Butane: N-Butane with isomer content >95% normal butane is used in petrochemical feedstock, where optimal cracking yields are accomplished.

    Packing & Storage
    Packing N-Butane is packaged in a 40-liter high-pressure steel gas cylinder, labeled with hazardous gas warnings and proper UN identification.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for N-Butane typically involves transporting 16-17 metric tons in ISO tanks, ensuring safety and regulatory compliance.
    Shipping N-Butane is shipped as a liquefied, flammable gas under pressure in specially designed cylinders, tank trucks, or railcars. Containers must be kept upright, well-ventilated, and away from heat, sparks, or open flames. Proper labeling and adherence to hazardous material transport regulations are essential to ensure safe shipping.
    Storage N-Butane should be stored in tightly closed, properly labeled containers, in a cool, dry, and well-ventilated area away from sources of ignition, heat, and direct sunlight. Storage tanks must be grounded and equipped with pressure relief devices. N-Butane is highly flammable; keep away from incompatible materials such as oxidizers. Comply with local regulations for flammable gas storage.
    Shelf Life N-Butane typically has an indefinite shelf life when stored properly in tightly sealed containers, away from heat, sparks, and direct sunlight.
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    More Introduction

    N-Butane: Reliable Fuel and Feedstock Straight from Our Facilities

    Tangible Qualities and True Performance in N-Butane Production

    Every run off our lines brings us close to the daily reality behind N-Butane—not just as a chemical, but as a hands-on tool making modern industry tick. Our production puts out N-Butane of high purity, keeping impurities below the threshold so flame characteristics remain steady and clean in end-use. From loading the pure gas into pressurized tankers to every test in the lab, the focus lies on consistency. We have learned through steady feedback that minor changes in impurity levels cause major issues for end users. It turns valves sticky, fouls burners, and shortens appliance lifespans. The main things customers ask for: predictable combustion, minimal residue, and reliability across seasons. N-Butane fulfills these—when it comes direct from the producer’s tanks.

    Model and Specifications Matter in Day-to-Day Operations

    Right from extraction, we run N-Butane through multi-stage separation and drying. True C4 grade—not mixed down with isobutane unless requested—comes out clear and with a high vapor pressure suitable for most LPG blends. The common grade we ship sits at above 99.5% purity, tested each batch for olefins and moisture. What these details mean: in downstream applications like home heating, propellant filling, and lighter fluid blending, cleaner gas burns with predictable efficiency and far fewer incidents of clogging or complaints of odor. We back this up with every certificate out the gate, because urban clients and refinery partners trust results they can see in their operations—fewer shutdowns, easier maintenance, stable blending ratios for LPG. Some buyers search for cheap bulk volume, but our customers generally report back on improved burner life and tighter control over flash points. The value of knowing the true butane content, in contrast to mixed stocks, means fewer surprises in storage or delivery.

    Direct Manufacturing Versus Intermediary Sources

    After years refining this process, a lesson stands out: buying directly from a chemical manufacturer avoids the guesswork that comes from multiple storage and transfer steps. Resellers might relabel tanks, and repeat handling can let contaminants creep in. We fill tankers right at the plant, dispatch them under strict pressure and temperature controls, and tag every lot for traceability. This cuts down uncertainty for companies relying on regular delivery—for their gas bottling lines, for mobile canister filling, or for specific feedstock ratios in their cracking plants. If you ever had a run where low-quality butane slowed production or set off alarms in a blend tank, you understand the real cost of cutting corners with intermediaries.

    Why Usage Context Shapes the Value of N-Butane

    Out in the field, N-Butane finds its way into diverse markets: heating, cooking gas, aerosol propellant, rubber polymerization, refrigeration, and even as a calibration standard in laboratories. The feedback loop from these sectors keeps us closely tied to the real-world demands of N-Butane. For residential gas, the focus always returns to safety and steady vaporization—something pure butane guarantees in warmer months but requires careful attention in chillier climates. Propellant clients, filling millions of aerosol cans each year, want ultra-clear gas with minimal storage odor. In chemical synthesis, a plant operator needs feedstock with no excess sulfur or volatile contaminants, since these damage catalysts and foul heat exchangers. Each of these concerns comes not as abstraction, but because we field those calls directly from operations managers and plant engineers, not just procurement offices. They know the hassles that low-quality or inconsistent supplies generate—from plant shutdowns to customer returns. This constant communication shapes our production protocols more than regulatory guidance ever could.

    Distinguishing N-Butane from Other Light Hydrocarbons

    N-Butane sets itself apart clearly from its structural cousin, isobutane (methylpropane). On paper, their properties look close: both C4 molecules, close boiling points, both part of the LPG family. But practical experience shows how subtle differences in structure yield significant knock-on effects. N-Butane runs with a straight chain structure—giving it a slightly higher boiling point and making it more suitable for steady pressure delivery in most climates. Isobutane’s branched structure means it stays liquid at lower pressure and is more often blended for colder weather performance or for specific chemical processes requiring easy vaporization. While we handle both, the N-Butane batch appeals more where thermal stability, storage simplicity, or tight spec control matter most. This difference shapes packaging, storage, and most importantly, the flare and response customers see at the burner tip or inside reactors. Pure N-Butane leads to predictable vaporization and pressure curves, delivering what operators expect from each drum, cylinder, or bulk truck.

    N-Butane as Raw Power in Industry—Not Just a Commodity

    Long-term partners in petrochemical lines often remind us how upstream variability in N-Butane feeds down through the entire chain—into rubber, plastics, synthetic resins, and lighter hydrocarbons. One client’s polymerization yield shifted simply because a competitor shipped in a blend that carried trace isobutane, much higher olefins, and a touch of moisture. The catalyst batch died early, downtime ran into the tens of thousands, and the final product didn’t cure as it should. Scaling up butane quality to near-laboratory levels, even in tank car volumes, forestalls these headaches. The product’s value goes far beyond its market price per ton; it insulates whole systems against downtime, equipment fouling, and inconsistent output. Despite outside focus on price indices, our direct experience says most clients see the real payoff in uptime, smoother logistics, and being able to plan production schedules with fewer emergency shutdowns.

    Direct Handling, Storage, and Logistics: Risks and Best Practices

    Working as the producer, hands-on familiarity with the logistics behind N-Butane delivery can’t be replaced by desk analysis or modeling. Keeping N-Butane in good shape means controlling every variable—pressure, temperature, and tanker integrity. The gas responds predictably within its specifications, but slip up on pressure control or let unwanted air/moisture seep in, and the result shows up in out-of-spec readings or even handling incidents. We invest not just in the filling and purification process, but in continuous leak testing, overpressure safety, and remote monitoring for every bulk shipment. The loading crew keeps logs for every batch, noting ambient conditions, cylinder weights, and product clarity. Regular checks sidestep contamination by oil or oxygen, problems that consistently lead to downtime out in the customer’s blend plant. What matters most isn’t theoretical purity: it’s making sure the product comes off the tanker in the same state as when we fill it—with every parameter in line and immediate action if a reading slips the limits.

    End-User Outcomes and Lessons Learned

    Some of our long-term industrial partners run continuous processes that can’t afford variable feedstock. Years ago, a power plant manager walked us through rows of burners, showing residues left behind by poorly refined light hydrocarbons bought via open markets. Clogged nozzles, off-spec emissions, weak flame—all tied back to one source: off-grade butane delivered without direct manufacturer oversight. By switching to direct-sourced N-Butane, they restored the entire system and saw emissions drop into compliance range. For companies running butane as a refrigeration charge in mobile cooling equipment, sticking to the spec means faster servicing and less venting loss. In the paint and coatings industry, propellant recalls fell. These are not isolated events. The same pattern repeats in gas bottling plants and synthetic rubber producers—performance improves most when there’s less guesswork over what’s in the tank.

    Quality Control and Traceability—Backed by Operations, Not Just Paper

    Having handled batch after batch, it’s clear that true traceability is less about certification documents and more about people who remember every tank that left the yard. If a customer down the chain reports unusual behavior in their butane-fed process, we track back by lot, by test result, and who was on shift during loading. Actual faces and hands are behind each test, each reading, each call from a foreman or chemist who knows the rhythm of their line. Traceability in our case means not just ticking off a checklist—it means accountability from the production manager to the loading bay supervisor. The same holds for recurring feedback—good and bad. If the odor, pressure, or burn rate seems off, we dive into historical logs, shipment dates, and field samples, not just sales orders. We learn more from resolving these real-world cases than any outside audit or inspection. Leftover sample retention lets us identify changes in depletion or handling further down the user chain, closing the loop on both product quality and transport safety.

    Market Shifts and Customer Requests: Evolving N-Butane to Fit

    The last decade has brought more than just changes in regulatory policy; customer expectations have shifted towards both greater transparency and environmental awareness. More than once, refiners and chemical plants have come to us looking for butane with even lower sulfur or fewer volatile organic residues in anticipation of stricter emissions caps. We adjusted the drying and stripping protocols, even altered purification steps, based on field test feedback—not just theoretical targets. This push from the field has also led to smarter packaging—bulk ISO tanks for larger users, prefilled canisters for small convenience distributors, and careful batch segregation when the client requests dual shipments for high-purity or technical-grade applications. Flexibility grows only out of seeing and hearing what works on the ground, not just what’s spec’d out at the spreadsheet or contract level.

    Environmental Responsibility in Manufacturing and Distribution

    Operating as an original manufacturer brings responsibility not only for quality but also for impacts on the environment and surrounding communities. Modern N-Butane production involves vapor recovery, regular leak detection, and investment in vapor flare minimization so workplace air remains clean and emissions are kept low. We retrofit compressors and pumps over time to reduce fugitive losses—otherwise, the gains in purity and batch reliability would be offset by air emissions or lost product volume. While the market often focuses on per-ton prices, the real test is in the health of our crew and the neighborhoods nearby. Long-term commitment to these upgrades protects not only the business but also our standing with regulators and the trust built with downstream clients who increasingly demand proof of responsible manufacturing. This stewardship remains just as important, if not more, than the technical qualities of the product itself.

    Technical Support and Post-Delivery Learning

    Manufacturing and distributing N-Butane goes far beyond pressing out drums or tank cars. Each customer, from global refiners to independent bottlers, offers new challenges after the gas arrives at their site. A spray-can processor may run into fill weight drift; a laboratory analyst may notice an unanticipated background odor. Each case becomes a collaboration to improve not only immediate outcomes, but the production line here as well. Technicians run through trouble-shooting remotely or by visiting sites, reviewing pipeline samples, tank purge cycles, and burner performance details. This kind of feedback comes with being a true producer—the fixes and improvements feed right back into junior operator training and plant upgrades. Customers have returned for years not just because specs are met, but because real answers are handed back, no matter how small the issue. This partnership mindset ensures the steady rise in quality, across both product and support service.

    Adapting to New Technology and Regulations

    Refining operations and product quality don’t stand still; evolving technology and environmental regulations push the standards higher each year. Automation in flow control, more sensitive gas chromatography, and deployable field analyzers sharpen our eye for impurity levels and speed up off-spec detection. Upgrading from legacy filter beds to high-efficiency scrubbers has trimmed turnaround times and energy consumption, benefiting both the bottom line and the wider environment. Regulatory agencies now expect more than passing results—they want active monitoring and demonstrated risk mitigation. Field inspectors don’t just check paperwork; they ask for in-person walkthroughs, direct measurements, and explanations of every alarm protocol. The commitment from a manufacturer’s perspective means continuous retraining, equipment upgrades, and staying connected to field experiences—whether via direct customer calls or independent verification. Only direct engagement ensures those investments lead to fewer incidents, quicker response times, and, eventually, even tighter partnerships with buyers who value both performance and transparency.

    Pain Points We See—and Continually Address—in N-Butane Supply Chains

    Distributors and resellers introduce uncertainty—product origin, handling, blending control. As direct manufacturers, we see the most pain among new clients who previously relied on third parties. Inventory mismatches, sporadic delivery, and trace contamination all trace back to supply chain layers that distance the user from the producer. We root out these risks by controlling logistics, tracking shipments from valve to valve, and remaining responsive to direct calls for troubleshooting or field questions. This direct link makes a world of difference for those running time-critical or safety-sensitive operations—no uncertainty as to where the batch began or the conditions under which it was filled. Customers hint they’d accept lower prices for convenience, but most find the hidden costs in unreliable or inconsistent product too high in the long run. Cutting those risks at the producer level remains our core offer.

    The Human Side—Factory and Client Collaboration

    Behind every specification sheet sits a group of operators, lab staff, and drivers who put their name on every tank shipped. Each has a stake in the performance of N-Butane out in real-world conditions. Manufacturing has taught us the importance of every eye and hand, not just top-level oversight. When a recurring issue pops up in a certain delivery route or tank batch, a meeting forms quickly—engineers, quality managers, and sometimes even the clients gather in person or remotely. None of these issues are solved by form emails or hotline tickets; they’re addressed by pooling experience, lining up test data, and often running real-time side-by-side performance checks. If propane or isobutane would work better in a particular application, we raise that point honestly—because aligning the right molecule to the job saves trouble for everyone. This open door, from the factory floor to the client’s loading dock, builds bridges of trust and technical exchange, the real markers of experience and authority in this field.

    Ongoing Solutions—How We Tackle Persistent N-Butane Challenges

    No process is ever “set and forget.” We keep tuning drying steps, stripping routines, and headspace purging as feedback rolls in. Our batch analytics moved from monthly spot checks to near-continuous monitoring, slashing instances of deviation below detection thresholds. Experienced operators catch the subtle shifts that signal a compressor needing maintenance or a tank holding more condensate than normal. We process every client’s challenging use scenario—be it ultra-low-odor requirements in personal care, tighter threshold limits for electronics manufacturing, or pure feedstock for polybutene synthesis—with direct changes to filling, testing, and dispatch protocols. Only direct production lets these adaptations happen rapidly. Years on the job have taught us that patterns repeat: most trouble begins with overlooked basics—poorly purged cylinders, incomplete bulk tanker cleaning, or unreported temperature excursions. We keep documentation clear, logs attached, and communication tight to stop these at the source. Instead of slogans, improvements stem from living with N-Butane every day, side by side with the people and equipment that use it.

    Looking Forward: The Manufacturer’s Commitment to Continual Growth

    Each season brings fresh learning and a new set of shared challenges. We have broad access to N-Butane’s supply chain, from the extraction wellhead to the finished tank at a client facility. This view, built over years of operation and feedback, drives continuous process improvement. New automation, sensitivity in impurity detection, upgraded safety controls—these investments echo through every tank shipped. Beyond infrastructure, the direct interaction with clients keeps standards high and responses fast. The true difference is not just in what goes into the tanks, but in the experience and accountability that comes from being the original producer—and listening to every user, engineer, and technician who needs N-Butane to keep their world running.