|
HS Code |
877503 |
| Chemicalname | Styrene |
| Casnumber | 100-42-5 |
| Molecularformula | C8H8 |
| Molecularweight | 104.15 g/mol |
| Appearance | Colorless, oily liquid |
| Odor | Sweet, aromatic |
| Boilingpoint | 145 °C |
| Meltingpoint | -30.6 °C |
| Density | 0.909 g/cm3 at 20°C |
| Flashpoint | 31 °C |
| Solubilityinwater | 0.3 g/L at 20°C |
| Vaporpressure | 6.4 mmHg at 25°C |
| Refractiveindex | 1.546 at 20°C |
| Autoignitiontemperature | 490 °C |
As an accredited Styrene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Styrene is packaged in a 200-liter blue steel drum, labeled with hazard symbols, product details, and manufacturer information for safe handling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Styrene typically involves 80 drums (200kg each), totaling 16 metric tons, securely packed for export. |
| Shipping | Styrene is shipped as a liquid in bulk tank containers, drums, or ISO tanks, under temperature-controlled conditions to prevent polymerization. It is classified as a flammable liquid (UN 2055) and requires labeling according to hazardous materials regulations. Proper ventilation, spill containment, and avoidance of ignition sources are essential during transport. |
| Storage | Styrene should be stored in a cool, dry, well-ventilated area away from direct sunlight, sources of ignition, and incompatible substances like acids and oxidizers. Use tightly sealed, stainless steel or glass containers, ideally under a nitrogen blanket to prevent polymerization. Storage temperature should be below 30°C (86°F). Regularly check inhibitors due to styrene’s tendency to spontaneously polymerize. |
| Shelf Life | Styrene typically has a shelf life of 1 year under cool, dry, and well-ventilated conditions, protected from light and inhibitors. |
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Purity 99.5%: Styrene with purity 99.5% is used in ABS plastic manufacturing, where superior impact resistance and surface gloss are achieved. Molecular weight 104.15 g/mol: Styrene with molecular weight 104.15 g/mol is used in expandable polystyrene foam production, where lightweight thermal insulation properties are enhanced. Viscosity 0.7 mPa·s (at 25°C): Styrene with viscosity 0.7 mPa·s (at 25°C) is used in unsaturated polyester resin formulations, where improved flow characteristics and uniform polymerization are observed. Stability temperature up to 40°C: Styrene with stability temperature up to 40°C is used in synthetic rubber (SBR) production, where consistent polymer structure and processing safety are maintained. Melting point -30.6°C: Styrene with melting point -30.6°C is used in copolymerization processes for latex manufacturing, where efficient reaction initiation at low temperatures is enabled. Flash point 31°C: Styrene with flash point 31°C is used in automotive part fabrication, where controlled volatility ensures safer handling and minimized fire risk. Boiling point 145°C: Styrene with boiling point 145°C is used in pipe insulation material manufacturing, where stable evaporation rates result in consistent foam cell structure. Inhibitor content 10-15 ppm: Styrene with inhibitor content 10-15 ppm is used in storage tank applications, where prolonged shelf-life and reduced polymerization risk are guaranteed. |
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Producing Styrene day in and day out has given us a close-up view of what goes into a dependable chemical and what industries really look for in quality olefins. Every drum we fill and every tanker we send out builds on decades of focused expertise, and that journey always begins with the core properties of the liquid itself. This is not some distant, invisible commodity; it’s a colorless, volatile, aromatic liquid, with a sweet, occasionally sharp odor that reminds anyone who works near the reactors just how reactive and versatile it can be.
We keep the product in mind from the moment pure ethylbenzene comes in as feedstock. Controlled dehydrogenation under carefully regulated heat transforms it into styrene, giving us full command over yield, purity, and trace impurity levels. We run GC-MS and other checks every shift. Anyone who’s patched a cracked heat exchanger mid-batch knows there’s nothing routine about maintaining those conditions batch after batch to keep polymerization under control and water content low. Our flagship material targets polymer-grade purity, typically above 99.7%. Low benzene residuals and controlled peroxides define our quality. Water counts as trouble, especially for downstream producers—so post-production vacuum stripping stays tight.
You see the results of this labor in all kinds of everyday products, most of them nowhere near a chemical plant. Styrene isn’t just a chemical—it’s a foundation. Producers rely on it as the cornerstone for making polystyrene, ABS, SBR, and unsaturated polyester resins. Without this base, there wouldn’t be lightweight food packaging, durable appliance housings, transparent cups, or the rugged insulation panels that crowd construction yards.
Our experience has taught us that those differences in product performance almost always trace back to material source and purity. For instance, general-purpose polystyrene (GPPS) thrives on batch consistency—runners in an injection-mold won’t fill out if the reactivity of the monomer skews outside its narrow window. High-impact polystyrene (HIPS) makers want minimal contaminant levels because butadiene rubber can gel if the feed isn’t fresh. In our plant, finished product stays sealed and under nitrogen. Downstream converters count on this to avoid gels and yellowing in their final applications.
Spec sheets give a snapshot—boiling point around 145°C, density near 0.91 g/cm³ at room temperature, and flash point sitting just under 32°C. These numbers matter, but they don’t tell the whole story. Every grade we ship—polymer, technical, or specialty—gets finished with care because getting sloppy just once means a potential shutdown or lost campaign for our customers. We keep peroxides and inhibitors (like TBC) at steady levels to prevent runaway polymerization. Removing excess polymer by early-stage filtration keeps the product from fouling downstream equipment, especially in emulsion SBR plants or EPS bead makers.
The industry offers several styrene options, yet few match the uniformity and batch repeatability we manage with carefully tuned reactors and experienced operators on shift. Some producers lean on blending or recycling to salvage process efficiency; our approach starts with consistent feedstock, tight unit operations, and dedicated maintenance. That discipline turns into fewer surprises—less up-time wasted, reduced equipment fouling, and extended campaign runs for users who count on us for stability.
Most downstream manufacturers have stories about dealing with mixed-source material. One day, a routine batch casts cloudy cups or streaked extrusion; next run, gels appear or filters plug. These issues don’t stem from marginal differences in boiling points or density—they follow from subtle shifts in purity. By sticking with the same process parameters and the same careful handling, we give processors confidence each time, whether they run large, continuous lines or small-lot specialty batches.
Styrene’s range touches most modern sectors in ways that stay out of sight. We see it in consumer goods, construction, automotive interiors, and electrical housings. Take expanded polystyrene (EPS) blocks at a job site. Construction pros want uniform bead expansion, predictable strength, and nothing that throws off mold cycles. Our experience working closely with those foamers has taught us the importance of consistency; thermal stability in the base monomer translates directly into a reliable, white, lightweight final product. Likewise, tire makers want styrene butadiene rubber (SBR) that balances flexibility with abrasion resistance. Here, too, the incoming monomer—free of oxygen, peroxide, and excess moisture—makes the difference between a smooth run and a lost batch.
Appliance manufacturers and electronics companies use ABS resins that rely on styrene for impact strength and surface finish. A miss in color, a luster flaw, or poor flow affects the end-customer’s first impression and the brand’s trust. That connection runs all the way back to our tanks, our operators, and the choices we make in hundreds of small movements—adjusting pressure, tuning catalysts, or tightening loading protocols. If we take a shortcut, someone far down the supply chain pays for it in lost yield or customer returns. We keep that responsibility front and center.
No one who works daily with aromatic chemicals like styrene can ignore the environmental questions. Volatility and air emissions mean we invest in containment, scrubbers, and careful venting. We replace gaskets, pressure test lines, and monitor work areas for leaks because small losses matter—not just for safety, but also for regulatory compliance and good stewardship. At loading and unloading points, anyone who’s handled a styrene spill respects how fast fumes spread. Controlling these factors is not abstract: shorter loading pipes, improved seal materials, and trained operators cut losses and calls from neighbors.
We also watch global trends pushed by consumer expectations and tighter legislation. Customers increasingly ask about life-cycle impact, monomer footprint, and post-industrial recycling. Cleaner production, closed-loop solvent recovery, and waste monomer reclamation keep us at the table with downstream manufacturers seeking more sustainable answers. Working close to the process, we see the need for investment in new reactors and flare stacks—not as a burden, but as the cost of staying relevant and welcomed by both customers and communities.
A plant filled with styrene demands respect. The liquid irritates skin, eyes, and especially respiratory tracts. Seasoned operators gear up with gloves and goggles, not because it looks impressive, but from real experience with splashes and nuisance exposures. Ventilation and closed transfer make life in the plant manageable, even during high throughput. We keep routine sampling under fume hoods, and periodic line drains closed off from foot paths.
Working with styrene means facing fire risk, particularly in summer heat. Vapors ignite quickly below 32°C, so grounding, bonding, and vapor control come as standard practice. Over time, we’ve built out procedures and alarms that catch pressure or temperature excursions early. These aren’t theoretical—one missed temperature spike can set off alarms, send people scrambling, and waste a whole batch. Smart handling, regular training, and open discussion at shift change keep accidents from becoming incidents.
In our plant, we often get asked why stick with styrene rather than push toward other olefins or acrylics. Ethylene, propylene, and even methyl methacrylate play roles in making plastics, but each brings unique handling quirks, costs, and performance results downstream. The reason so many converters stick with styrene boils down to its balance: polymerizes reliably under a range of conditions, forms strong, moldable plastics, and takes additives well. Unlike some acrylics, it resists yellowing without needing heroic stabilizer packages, and its speed of polymerization keeps extruders and molders happy.
Some specialty users look for alternatives—blends or co-monomers with lower environmental risk or better weatherability. These products offer theoretical advantages. In reality, established styrene-fed lines show better cost control, faster switchover, and generally maintain higher compatibility with commodity plastics, such as high-impact polystyrene and SAN. It also tends to run cleaner in recycling trials; established streams accept minor contamination with less yield loss. Because so much of the downstream process industry is set up for this chemistry, switching rarely improves the bottom line. That's why major users and converters continually return to consistent, high-purity monomer from sources they trust.
We don’t just ship styrene—we build partnerships with converters, processors, and R&D teams who need smooth product launches and trouble-free operations. The best feedback doesn’t always come from the lab but from a late-night call after a trial batch runs cleaner than expected, or from a quality manager who notices yield gains. One resin producer told us how a change in inhibitor levels saved weeks of shutdown time; another, a foam maker, explained how fewer gel spots cut scrap by 20%. These things come from listening closely, not just reading test reports or spec sheets.
Over the years, we’ve adapted shipments to match both small specialty orders and the long-haul tankers bound for massive plastic facilities. That means adjusting inhibitor levels for long transit, shortening hold times in summer, and sending technical service to help with startup blends. Open conversation matters—customers who worry about off-flavors in food-packaging polystyrene want raw data, not marketing. We keep our analytical chemists accessible, share test results, and invite audits so buyers have direct evidence of what arrives at their gates. Trust grows through these measures.
Styrene as a product never sits still. We see incremental gains with every process upgrade, batch software tweak, and maintenance shutdown. Small changes in heat integration or distillation trays cascade into better purity and less waste. Downstream, these improvements filter through as better processability, higher yields, and fewer rejects for converters. Everyone in our team—from instrument techs to lab staff—carries that weight. Internal discussions always ask: How can we make the next batch better, cheaper, or safer?
Broader industry trends push us to re-examine catalyst choices, raw material sources, and inhibitor management. We test alternative feedstocks not just for price, but for long-term security and environmental performance. Demands for “greener” solutions brought us into new collaborations, looking at bio-based routes. While most styrene today still comes from fossil sources, the push to integrate circular chemistry is real and urgent. It’s not just about image—your customer’s customer starts to ask about carbon footprint, and that inquiry works backward up every supply chain.
Polymer chemistry defines so many modern industries, from basic packaging to advanced composites. By making and supplying styrene, we enable those possibilities, but with each year, we see more demand for reliability, traceability, and support beyond a simple shipment. That shows up in the way we document batches, the effort we put into quality management, and how quickly we address deviations.
For many of our partners, specification means much more than a minimum purity figure. They expect open records, quick updates, and access to technical support. Our operators run with this in mind, and our logistics teams back them up with carefully timed shipments and flexibility during plant turnarounds or market swings. Consistency, safety, and service grow from inside the plant, not just out of a marketing brochure. That’s an everyday reality for a producer.
Styrene demand never looks the same three years in a row. Surges in packaging, spikes in auto production, or a shift to higher impact plastics toss old projections aside. We see it firsthand, watching orders tick up or fall. Our approach has always been to balance production for stable supply and keep reserves in place for contract commitments.
Rapid swings mean more than just plant restarts or shutdowns. Surging demand for medical disposables in recent years, driven by health emergencies, required overtime maintenance and smart inventory juggling. Construction slowdowns call for careful throttling, real-time analysis, and often close conversations with key accounts. Experience has taught us to avoid panic pivots and focus instead on measured adjustments—flexible, but always anchored in realistic assessments of feedstock and labor.
Traceability in styrene production isn’t a buzzword for us; it’s protection for our customers and reassurance for ourselves. Every railcar, iso-tanker, and drum tying back to a unique batch record helps resolve questions about off-odor, haze, or process performance. Customers want that certainty, especially when a big run hits a surprise snag. We keep detailed logs—operator notes, analyzer readings, and real-time plant data—as the backbone to honest, factual support. Those records help root out issues quickly, cutting downtime and restoring trust.
Quality comes not just from shiny new equipment or a well-trained lab, but from the discipline to stay focused, batch after batch, shift after shift. Teams who watch trendlines, hunt for small leaks, and catch temperature blips early set the tone for excellence. When we hear from converters who run smoother or get ahead of a market spike, it ties back to those everyday decisions. Our best customers stay with us not from habit, but from results—output that runs clean, processes that clip along, and technical teams who solve rather than deflect.
Making styrene at scale is more than a technical process or routine business. It’s about putting knowledge, care, and integrity into every step of production, knowing each decision ripples into industries and homes worldwide. As we adapt and evolve, we remember that real quality finds its measure in performance where it matters—in the forming machines, the foamers, and the molding shops run by our partners.
Styrene continues shaping products and possibilities on a global level. By staying close to the process, open to improvement, and honest about every batch, we hold our place in a supply chain defined by trust. That’s both a challenge and a privilege each day we open the plant gates.