|
HS Code |
260794 |
| Chemical Name | 1-Butene |
| Chemical Formula | C4H8 |
| Cas Number | 106-98-9 |
| Appearance | Colorless gas |
| Odor | Slightly aromatic |
| Boiling Point Celsius | -6.3 |
| Melting Point Celsius | -185.3 |
| Density G Per Cm3 | 0.62 |
| Vapor Pressure Kpa 20c | 295 |
| Flammability | Highly flammable |
| Solubility In Water | Insoluble |
| Autoignition Temperature Celsius | 385 |
| Flash Point Celsius | -76 |
| Iupac Name | But-1-ene |
As an accredited 1-Butene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1-Butene is typically supplied in a 50-liter high-pressure steel cylinder, labeled with hazard symbols and product details, tightly sealed. |
| Shipping | 1-Butene is shipped as a liquefied, flammable gas under pressure in steel cylinders or specialized tankers. It requires appropriate labeling and handling in accordance with hazardous material regulations. Containers must be stored in cool, well-ventilated areas, away from sources of ignition. Proper protective measures are essential to prevent leaks or accidental release. |
| Storage | 1-Butene should be stored in tightly sealed, clearly labeled cylinders or pressure vessels in a cool, well-ventilated area away from heat, ignition sources, oxidizing agents, and direct sunlight. Storage areas must be equipped with proper fire suppression systems and leak detection. Containers should be protected from physical damage and secured to prevent tipping or rolling. Always follow local regulations and safety guidelines. |
| Purity 99.5%: 1-Butene with a purity of 99.5% is used in the production of linear low-density polyethylene (LLDPE), where it enhances polymer toughness and flexibility. Boiling Point -6.3°C: 1-Butene with a boiling point of -6.3°C is used as an intermediate in chemical synthesis, where it enables efficient volatilization in fractional distillation. Stability Temperature up to 40°C: 1-Butene with stability temperature up to 40°C is used in alkylation processes, where it maintains product integrity during catalytic reactions. Low Residual Sulfur (<1 ppm): 1-Butene with low residual sulfur content is used in automotive fuel blending, where it minimizes sulfur oxide emissions. Isomer Content <0.1% cis-2-Butene: 1-Butene with isomer content less than 0.1% cis-2-butene is used in high-purity polymerization reactions, where it improves polymer consistency. Moisture Content ≤50 ppm: 1-Butene with moisture content of ≤50 ppm is used in specialty elastomer manufacturing, where it minimizes hydrolysis and enhances product yield. Density 0.62 g/cm³: 1-Butene with a density of 0.62 g/cm³ is used in gas-phase copolymerization, where it provides precise reactant flow control. Reactivity Index ≥ 0.95: 1-Butene with a reactivity index of ≥0.95 is used in the synthesis of oxo-alcohols, where it ensures high conversion rates and product selectivity. Hydrocarbon Purity ≥99.7%: 1-Butene with hydrocarbon purity of ≥99.7% is used in surfactant intermediate manufacturing, where it reduces undesired side products. Trace Metal Content <0.05 ppm: 1-Butene with trace metal content less than 0.05 ppm is used in fine chemical synthesis, where it prevents catalyst poisoning and increases process efficiency. |
Competitive 1-Butene prices that fit your budget—flexible terms and customized quotes for every order.
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Our work with 1-Butene runs deep—decades spent refining its production, optimizing purity, and understanding its impact on each application. As a linear alpha-olefin, 1-Butene (C4H8) serves as a keystone molecule for many chemical industries. Unlike other butene isomers, 1-Butene’s double bond in the terminal position unlocks advantages in reactivity and polymer chain structuring. Production methods, from steam cracking light hydrocarbons to separation via distillation from crude C4 streams, have improved to boost output with consistently high purity, often over 99.5% by weight.
End-users, from resin manufacturers to those making lubricant additives, look for specific physical and chemical behavior. We get constant feedback—running polybutene reactors on our 1-Butene, operators note faster reaction rates and tighter molecular weight distribution compared to isobutylene or cis-/trans-2-butene. Even small flexes in isomer ratio influence downstream performance, especially in catalyst-driven systems. This sensitivity is felt in every reactor charge; we chase minimal isomer contamination as a matter of process discipline.
Commercial 1-Butene isn’t a single-grade product. We supply material for a spectrum of applications—polyethylene comonomer, plasticizer manufacturing, oxo alcohols, and surfactants. Each line has its own high bar for trace impurities. Heavy hydrocarbons, oxygenates, and water content threaten catalyst life and finished product stability. We deploy tight controls: molecular sieves for drying, distillation cuts with automated QC, gas chromatography at every campaign run. The push for ever-cleaner 1-Butene has only intensified as polyolefin catalysts get more selective and less tolerant of residual contaminants.
Customers in the LLDPE and HDPE industries demand low free acetylene, sulfur, and oxygenates—not just on a monthly certificate but tank-by-tank, drum-by-drum. Manufacturing adjustments, like dual-column fractionation and nitrogen-blanketed transfer, enable these levels. Our teams own the process from cracking, extraction, and purification to tanker loading and drum filling. There’s no intermediary between the process engineer and the customer. This hands-on experience shows in every complaint we prevent and every batch we certify.
The advantages of 1-Butene come to light most clearly in polymerization. We support manufacturers aiming for precise chain branching in polyethylene and ethylene copolymers. 1-Butene’s terminal double bond sits right where Ziegler-Natta and metallocene catalysts need it, weaving short side-chains that tune material flexibility, clarity, and impact resistance. This specific reactivity sets 1-Butene apart from its sibling, 2-butene. In polymer plants, side-feeding 1-Butene can deliver increased melt index control compared to blends of alpha-olefins or using internal olefins such as 2-butene.
Beyond plastics, 1-Butene’s value gets recognized in higher alcohol production. The oxo process transforms it—with hydroformylation—to butyraldehyde and then onward to n-butanol or 2-ethylhexanol. Purity at scale keeps these runs operating right up to catalyst drop-out points, reliably, batch after batch. If butadiene or other C4 streams bleed through into 1-Butene, reaction selectivity slides and costs tick up. Decades of customer process troubleshooting and plant audits bring this lesson home every year. In alkylation units, where detergent alcohols take shape, off-spec olefin can lead to off-odor, instability, or fouling. Prevention, not correction, shapes our philosophy and investments.
Producing 1-Butene at commercial scale means taking on significant process and safety challenges. High flammability and reactivity require robust engineering controls right from the cracker outlet. We run multiple containment zones: gas detectors, flame arrestors, and thick-walled piping backed by years of safety data and regulatory compliance. The stakes are high because missteps not only threaten product quality but worker safety. Every improvement in containment and detection originated from real-world incident review—lessons written in labor hours, not textbooks.
Maintenance downtime and catalyst fouling cost hours and sometimes days of lost output. Tanker contamination, a familiar issue in the early years, influenced us to build dedicated tankage, proprietary cleaning regimens, and tracking systems. It’s common for customers to return empty tanks with traces of incompatible products. Our loading crews and instrumentation technicians lead rigorous inspection routines, giving us direct control over departures and arrivals. Troubles encountered by others in the value chain inform our daily operations and drive improvements that ripple upstream and downstream.
The surge in demand for lighter, more recyclable polyolefins puts pressure on suppliers to innovate around 1-Butene. Reactor fouling, loss of melt control, and batch-to-batch variability all find their roots in feedstock purity and isomeric composition. Materials science changes fast—phenomena once blamed on “operator error” or “poor catalyst” often trace back to inconsistencies in 1-Butene feed or storage. We draw on decades of plant-level data and close dialogue with polymer chemists to address these needs proactively.
Emerging sectors like bio-based surfactants and specialty elastomers set new standards. Producers demand 1-Butene with lower aromatic residue, minimal chlorides, and sharply-defined isomeric breakdown. We invested early in advanced analysers and more granular batch tracking, learning every year from failed tests and rejected batches. By documenting impurity removal with every process tweak, we’ve seen steady decreases in complaints and off-spec returns.
The market offers a wide palette of C4 olefins. Why do so many industrial partners turn to 1-Butene in preference to 2-butene, isobutylene, or butadiene? Feedback from real-world operations shapes our answer. Polymer makers tell us 1-Butene’s alpha-double bond delivers better control for LLDPE, especially when clarity and flexibility are priorities in films or injection-molded items. In these jobs, 2-butene underperforms because of its internal double bond—catalysts interact less selectively, leading to less predictable branching and often higher gel counts.
For alcohol and plasticizer plants, feedstock purity is only half the equation—reaction speed and yield count at least as much. Our 1-Butene’s reactivity delivers higher oxo process conversion, with cleaner downstream separation than bulkier isobutylene. Corrosion and fouling rates also run lower compared to higher diene content found in some other C4 streams. Butadiene, though essential for some rubber lines, brings the risk of runaway reactions and fouled catalyst beds when contamination crosses certain thresholds. By offering a tailored 1-Butene cut, we help users avoid side reactions and stay on-spec without expensive post-treatment. Years of field troubleshooting, from blocked pipes to short polymer chains, guide every process control tweak we introduce.
Plant experience teaches that shipping and storage can make or break a good product. 1-Butene’s volatility and reactivity call for specialized handling. Drum and ISO tank preparation involves pre-purging, blanketing with inert gases, and regular sampling. Subpar preparation risks condensation or contamination—either can torpedo a week’s worth of carefully distilled product in minutes. We see more demand for just-in-time delivery and smaller packaging, both to avoid costly inventory and to minimize storage time. Delivering on these requests keeps process teams and drivers closely coordinated, whether by rail, road, or pipe.
Sustainable practices continue to draw attention, even as mainstream options for biobased 1-Butene remain a longer-term goal. Nevertheless, we apply energy management, heat integration, and fugitive emission controls within our plants. Early investments in flare reduction, leak detection, and closed-loop sampling have paid dividends in lower emissions and accountability. Our onsite teams log every cylinder, transfer, and shipment, providing an audit trail from raw feedstock through to delivery. Full transparency in traceability forms the backbone for responsible chemical stewardship. Hard-earned lessons—like the difficulty of recovering from a batch tainted with residual mercaptans or peroxides—resonate with every new operator we train.
No spec sheet or certificate tells the whole story of what a high-purity 1-Butene means to a production manager or engineer. In daily plant life, the difference shows up in fewer reactor upsets, faster transition times, lower waste resin, and higher throughput. We take pride in the long relationships forged through consistent product runs, technical troubleshooting, and honesty about process limitations. When downstream customers find themselves facing yield dips or poor color in end products, our teams dig into the raw data—tracking tanks, lots, and even weather conditions at shipping sites. Not every batch runs perfectly. The difference between a reliable producer and a bulk trader often comes to light during the tough conversations, the root-cause reviews, and the weeks spent implementing small but meaningful process changes.
Our product teams align closely with customer R&D and plant staff. We’ve walked many lines side by side, watching for vapor leaks, listening to the uneven rumble of a distillation column under stress, and sifting through GC data until improvements are made. Keeping communication lines open and being ready to admit fault is as much a part of our job as delivering the next load. Decades in this space—producing, testing, correcting—teach that process discipline, not just equipment or investment, drives excellence in chemical manufacturing.
The reach of 1-Butene extends beyond our loading bays and reactor halls. Every industry that uses it, whether for polymerizing, alkylating, or hydrating, relies on a steady hand at every step. We’ve seen how upstream disturbances—like a hiccup at a naphtha cracker or a railcar delay—ripple through to affect finished product quality weeks down the line. By establishing direct lines of communication and contingency planning with our logistics, maintenance, and customer support groups, we anticipate problems that might otherwise catch others flat-footed. Adjustments, whether to cut points, stabilization steps, or inventory levels, draw on years of process data and shared experience on both sides of the exchange.
Supply chains across the chemical industry have grown more brittle. Natural disasters, unplanned outages, regulatory changes, and shifting demand all exert pressure. Long before COVID-19 or shipping bottlenecks drew headlines, we invested in buffer storage, vetted multiple transport partners, and drilled staff on emergency handling. We know that customer operations—sometimes running twenty-four-hour cycles—cannot wait for excuses when one shipment is delayed or off-grade. By keeping lines staffed with seasoned operators and decision-makers right through the middle of the night, we deliver more than just a product; we deliver confidence that each shipment will do exactly what’s required, without drama.
Chemistry is only one part of the equation. True value comes from anticipating the unglamorous but vital challenges—de-bottlenecking a fouled exchanger, swapping a valve mid-shift, or recalibrating an analyser on short notice. Our engineering and production teams provide support that reaches beyond the basics—tank swaps, blending advice, emergency run interruptions, and rushed testing for customers during process upsets. It’s common to pick up the phone with suppliers or plant operators looking for advice, not a sales pitch, whether the issue is a tricky polymerization run or an unexpected pressure swing at the delivery end.
Looking ahead, rising specifications and increasingly complex applications will demand even tighter control. Our approach remains rooted in plant-level engagement, assignment of responsibility, and never being satisfied with industry-standard answers. By continuously challenging our own processes—upgrading analytical equipment, improving staff training, and keeping a tight loop of customer feedback flowing—we push not just for compliance, but for a higher level of trust and reliability.
Making 1-Butene isn’t simply a function of recipe and automation. The extra value enters in the details—each storage tank probed, every line purged, every operator trained to spot trouble before it spreads. Consistent hands-on involvement, process discipline, and genuine ownership over both process and product set experienced manufacturers apart. We’ve seen customer plants succeed and fail based on the smallest shifts in raw material input—insights gathered through not just data but long hours on the plant floor. Our commitment to the highest standards in 1-Butene production reflects a lived understanding of the challenges faced by those who rely on us, batch after batch, year after year.