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HS Code |
937745 |
| Chemical Name | Butylene-1 |
| Synonyms | 1-Butene |
| Molecular Formula | C4H8 |
| Molar Mass | 56.11 g/mol |
| Cas Number | 106-98-9 |
| Appearance | Colorless gas |
| Boiling Point | -6.3°C |
| Melting Point | -185.3°C |
| Density | 0.616 g/cm3 (at 0°C) |
| Flash Point | -78°C |
| Autoignition Temperature | 385°C |
| Vapor Pressure | 2,430 mm Hg (at 20°C) |
| Solubility In Water | Slightly soluble |
| Odor | Sweet, gasoline-like |
| Flammability | Highly flammable |
As an accredited Butylene-1 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Butylene-1 is packaged in a 200-liter blue steel drum with safety labeling, hazardous markings, and secure, sealed closure for transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Butylene-1: Standard 20-foot container, securely loaded, compliant with safety regulations, suitable for bulk liquid transport. |
| Shipping | Butylene-1 is shipped as a compressed, liquefied gas in specially designed cylinders or bulk tankers. It must be handled under pressure, away from heat, sparks, or open flames. Proper ventilation and adherence to relevant safety regulations are required due to its flammability and health hazards. UN Number: 1012. |
| Storage | Butylene-1 should be stored in tightly closed, properly labeled containers in a cool, well-ventilated area, away from heat, sparks, open flames, and incompatible substances such as oxidizing agents. It is typically stored as a liquefied gas under pressure. Appropriate grounding and bonding are necessary to prevent static discharge. Use only with proper ventilation and suitable safety equipment. |
| Shelf Life | Butylene-1 typically has a shelf life of 12 months when stored in tightly sealed containers under cool, dry, and well-ventilated conditions. |
Applications of Butylene-1 in Industrial ManufacturingButylene-1 serves as a key C4 olefin intermediate for various high-volume polymer and specialty chemical industries. As a direct manufacturer, we deliver consistent quality to meet industry specifications for downstream production environments. Below are major application fields, with details from formulation through quality compliance to finished goods. 1. Linear Low Density Polyethylene (LLDPE) Comonomer ProductionPolyolefin producers use Butylene-1 as a comonomer to adjust the density and mechanical profile of LLDPE films and molded products. Integration occurs in high-pressure or slurry polymerization units, where process control ensures desired melt index, clarity, and resistance attributes. Regulatory and end-customer audits require traceable quality and reproducible dosing to maintain final resin compliance and performance. Industry compliance standards
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2. Polybutylene (PB-1) Plastic Resin SynthesisButylene-1 is the essential monomer for polybutylene resin, utilized for pressure pipes, film, and hot water applications. Production requires high-purity feed and strict control of polymerization to deliver molecular weights and crystallinity profiles certified for potable and hot water installations. In-house analytical testing and QC during polymerization assure compliance with pipe and health standards. Industry compliance standards
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3. Synthesis of Plasticizers via Oxo-Alcohol RouteIn specialty chemical and plasticizer manufacturing, Butylene-1 acts as an intermediate for the production of primary alcohols and esters, including 2-ethylhexanol, critical for phthalate and non-phthalate plasticizer lines. Feed consistency and impurity control are vital, as downstream hydrogenation and aldehyde synthesis steps are sensitive to trace contaminants. Integration requires accurate plant monitoring to meet finished ester product specifications. Industry compliance standards
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4. Synthesis of Specialty Olefin Derivatives (e.g., Butylene Oxide)Chemical synthesis facilities use Butylene-1 to produce derivatives such as butylene oxide via selective oxidation reactions. This intermediate serves as a building block for surfactants, lubricants, and polyurethane foam additives. Consistent feed concentration and impurity profile are critical in fixed-bed catalytic reactors, where conversion rates and selectivity must meet downstream processor demands and support regulatory compliance for sensitive applications. Industry compliance standards
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5. Production of Lubricant Additives and Synthetic OilsButylene-1 is used in the oligomerization process to manufacture polyalphaolefin (PAO) base oils for high-performance synthetic lubricants. Lubricant formulators rely on precisely controlled oligomerization for viscosity index and pour point control. Downstream regulations require strict adherence to chemical composition limits and batch traceability, especially in automotive and food machinery oil applications. Industry compliance standards
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6. Production of Fine Chemical Intermediates via AlkylationIn fine chemical and pharmaceutical intermediate manufacturing, Butylene-1 serves in controlled alkylation or addition reactions, yielding tailored intermediates for agrochemicals, plastic additives, and antioxidants. Downstream usage often demands high-purity grades and batch consistency, with regular analysis to meet detailed customer and legislative quality requirements at every production stage. Industry compliance standards
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Day in and day out, we draw Butylene-1 out of our reactors in tonnage. Its clear, distinctive odor alone marks it out, but the value comes long before it leaves the pipes. In our line of work, purity and consistency make all the difference, and Butylene-1, also known as 1-butene, stands up to scrutiny on both counts. We have fine-tuned our production lines to turn out material with a purity not less than 99.5%. That figure holds real weight whenever a customer expects materials that won’t compromise a catalyst system or send a batch out of spec.
To those outside of chemical plants, Butylene-1 might seem like just another commodity in the C4 olefin family. In the eyes of our operators, it is much more than that. Butylene-1 possesses a terminal double bond, which completely changes its utility compared to its cousins like isobutylene or 2-butene. This structure allows it to participate in polymerization reactions that others simply can’t match as cleanly.
Plenty of our clients in the polyolefin sector rely on this distinction. They use Butylene-1 as a co-monomer for producing linear low-density polyethylene (LLDPE) or even high-performance polyolefin elastomers. Our process ensures moisture and oxygen levels remain at minimal values, as demanded by the catalyst systems in modern reactors. A single stray contaminant can influence the molecular weight distribution in a batch of polymer, making strict control on contaminants more necessity than luxury.
Operators here know, firsthand, the pitfalls that can come from loose quality standards in Butylene-1 manufacturing. A plant trying to push output at the expense of fractionation ends up with product loaded with heavier C4s or even traces of butadiene – compounds which are notorious for gumming up downstream processes and catalysts. That’s why we consistently invest in our purification columns and monitoring systems. Hydrogenation, careful distillation, and comprehensive gas-phase chromatography aren’t just buzzwords; they’re daily practice. These steps give us confidence in offering Butylene-1 with impurity profiles that minimize process disruptions and optimize reactor conditions for our customers downstream.
In our hands, technical specifications shift from abstract tables to real, measurable attributes. A producer sees that a moisture content below 10 ppm isn't simply a checkbox—it's the line between a flawless and a fouled catalyst, especially for Ziegler-Natta or metallocene systems in the polymer industry. Impurities like CO or acetylene, even at lower ppm levels, pose a fundamental threat to these sensitive processes. Our analytical staff, armed with GC-TCD and other instrumentation, monitor every batch, recognizing how even minor blips can echo through a customer’s operation.
Earlier in our company’s history, we learned this lesson the hard way. Back then, butylene came off the C4 splitter with inconsistent butadiene traces, leading to multiple customer complaints. Those issues forced us to rethink, retool, and invest in technological upgrades, ensuring current production reflects the expectations of world-class manufacturing.
The most demanding users for Butylene-1 walk through the door from the polyolefin industry. In those applications, it's leveraged to modulate the crystallinity, impact strength, and flexibility of end-use polymers like LLDPE. Customers request our material specifically to control the density and molecular structure of their resins. We have spent years collaborating with technical teams in downstream plants, understanding how dosing rates and comonomer ratios affect properties such as film toughness or clarity.
South Asian and Middle Eastern clients often inquire about using Butylene-1 as a co-monomer in specialty polyolefin elastomers or plastomers. For them, controlling molecular distribution is not just a scientific exercise — it defines whether films will seal, stretch, or resist puncture. Through trial runs and feedback, manufacturers come to rely on our product's lot-to-lot consistency.
Beyond plastics, manufacturers of specialty chemicals recognize Butylene-1’s value for producing high-purity 1,2-butylene oxide, n-butanol, and even as a key feedstock for syntheses leading into surfactants or lubricant additives. In each of these cases, errors in base purity snowball into problems further down the line: process interruptions, discoloration, or off-spec material. Long-term partnerships in these fields stem from our refusal to compromise on these fundamentals.
Operators sometimes field calls asking, “Why not just substitute another C4 like isobutylene or butadiene?” Truth is, structure dictates reactivity, and Butylene-1’s terminal double bond opens up reactivity windows unavailable to its isomers. Isobutylene, for example, positions the double bond internally, making it less effective for certain polymerization and chemical transformations. Butadiene introduces unwanted polymeric byproducts and even raises workplace safety hazards. Iso-butene, though crucial for butyl rubber production, cannot perform in the role Butylene-1 fills in linear copolymer synthesis. The nuanced differences become obvious to those who see firsthand the impact of each molecule on downstream chemistry or plant safety audits.
Anyone familiar with volatile olefins knows: minor oversight in handling Butylene-1 invites headaches. Our approach starts with double-sealed piping and nitrogen blanketing to cut off oxygen — not only does this safeguard against fire, it also prevents polymerization within lines and tanks. Our logistics team developed these protocols through decades of troubleshooting and incorporated them into our ISO routines, minimizing incidents of off-spec or discolored material reaching a customer’s site. Several years ago, a brief lapse in nitrogen pressure led to oxidized product arriving on a long-distance shipment, causing significant clean-up at the user’s plant. Every staff member remembers that episode, and it has shaped the meticulous procedures we follow today for shipping and transfer.
Rigid research and casual feedback from line crews both help shape improvements in our Butylene-1 grade. When customers from flexible packaging producers came to us complaining about occasional gels in film, it instigated a thorough audit of residual diene levels and led to the adoption of an extra purification step. We introduced additional detection on trace sulfur and oxygenates, which can slip in through raw materials or unmonitored pipelines. These course corrections improved the transparency and strength of films made by our downstream partners. Technical exchanges like these keep us on top of trends and move us away from the old 'set and forget' mentality of legacy olefin operations.
Those in the business of catalyst development know that what makes the difference isn’t just high Butylene-1 purity, but a tight hold on all C4 contaminants. We keep open channels with catalyst makers and plant chemists, learning from their bench-top and pilot-scale trials. They tell us where our product shows up in melt flow variations, off-odors, or color shifts during extrusion or molding. We welcome site visits, data sharing, or even fielding questions on how we set detection limits. Such scrutiny hones our methods and aligns our targets with customer process stability. Not all manufacturers like this level of transparency, but in our experience, the candid exchange pays off both in reduced complaints and in the long haul of building trust.
One might imagine the story ends at polyethylene or elastic films, but our Butylene-1 finds itself in other reaction vessels too. Surfactant manufacturers tap into it for its ready reactivity in epoxidation and subsequent conversion into non-ionic surfactants. A few clients in the specialty lubricant industry process it into alcohols or dibutyl ether, where contaminants could spell doom for sensitive catalyst beds. On rare occasions, researchers approach us with requests for ultra-high-purity Butylene-1 for pharma or fine chemical routes. We have the flexibility to meet these challenges thanks to our modular distillation and custom purification lines.
Our engineering teams charted these capabilities not from a wish to chase niche markets, but mainly by focusing first on repeatability and consistency for the most common uses. As we scaled up, these capabilities gave us an edge in responding to one-off requests that stretch beyond commodity requirements. The tangible experience of switching feedstocks and grades on short notice has refined our methods and lowered the learning curve each time a novel application surfaces.
Experienced operators know that handling Butylene-1 doesn’t just mean ticking off regulatory boxes. Above all, safety remains a personal concern on the plant floor. The gas is colorless but highly flammable and prone to rapid polymerization if exposed to heat or a trace of impurities. We’ve built in triple redundancy on containment, emergency venting, and atmosphere controls. Our shift leads run regular drills for leaks; we treat these as part of daily operations, not just annual reviews. A facility incident involving an upstream supplier some years ago reminded us of the stakes. Those lessons translate into vigilance, ensuring our customers get a product that is as safe to handle as the regulations demand, and as reliable as our crews insist upon.
The modern chemical industry faces mounting pressure to reduce waste, emissions, and energy intensity. Our journey with Butylene-1 plays a part here. We source our C4 feedstock from integrated refinery operations, ensuring maximum resource utilization from every barrel processed. Our distillation units operate under optimized energy balances and real-time process control, keeping flaring and vent losses at a minimum. The shift towards cleaner operations echoes both customer expectations and our own sense of stewardship. Years ago, process upsets resulting in excess venting led to local complaints and prompted investment in condensation recovery and flare gas recycling. Now, measurable improvements in emissions data stand as proof of the benefits of persistent refinement.
Some of our partners request documentation proving product lifecycle and GHG intensity. We meet these needs by supplying full traceability reports and supporting audits by third parties, which has fostered deeper trust and expanded long-term agreements. As industry standards continue to evolve, our direct engagement with environmental monitoring and transparent reporting sets a technical and ethical benchmark. The work goes on, because each successful innovation in energy or materials efficiency reflects in both bottom line savings and public confidence.
We ship Butylene-1 around the world, from regional plastic plants to multi-national chemical complexes. Each region brings different climate, infrastructure, and customer expectations. Our teams learned to forecast logistics challenges, whether it’s the temperature swings in continental Europe or import compliance hurdles in the Americas. Shipments get tailored not by templated paperwork but by real-world conversations with shipping directors and process engineers who know firsthand the troubles of product degradation, customs hold-ups, or drum failure under tropical heat. We respond by offering container insulation, real-time temperature data loggers, and local support. The result: customers on every continent know exactly what to expect every time a shipment leaves our gate.
To the uninitiated, Butylene-1 may be another figure in the C4 balance sheet, but for us its value manifests daily through the hands-on reality of keeping reactors running, products in specification, and partners satisfied. Its unique structure makes it indispensable in a host of industrial syntheses – from next-generation polyethylene grades that line supermarket shelves, to surfactants that underpin household products, to specialty chemicals found in automotive fluids.
Staying close to the ground, we resist the temptation to lean too hard on generic speech. Quality matters, and so does reputation. Each tank of Butylene-1 that leaves our site does so carrying the weight of operator pride and decades of troubleshooting experience. In every phase, from raw material selection to the last meter of pipeline, we remain guided by the realities experienced on the plant floor and by the labs that test our output. Partners return to us not out of habit, but because years of experience taught them that what happens upstream shapes what’s possible downstream. In Butylene-1, as in all of chemistry, the details matter — and with our processes, they’re never overlooked.
