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Styrene [Stabilized]

    • Product Name Styrene [Stabilized]
    • Alias Vinylbenzene
    • Einecs 202-851-5
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    114526

    CAS_Number 100-42-5
    Molecular_Formula C8H8
    Molecular_Weight 104.15 g/mol
    Appearance Colorless to yellowish oily liquid
    Boiling_Point 145 °C
    Melting_Point -31 °C
    Density 0.909 g/cm3 at 20°C
    Flash_Point 31 °C (closed cup)
    Solubility_in_Water Insoluble (0.3 g/L at 20°C)
    Vapor_Pressure 6.4 mmHg at 20°C
    Odor Sweet, aromatic
    Stabilizer Typically contains 10-15 ppm 4-tert-Butylcatechol (TBC)

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

    Packing & Storage
    Packing Styrene [Stabilized] is packaged in a 250 mL amber glass bottle with a secure cap and hazard labeling for safe transport.
    Shipping Styrene [Stabilized] is shipped as a flammable liquid, typically in steel drums or ISO tanks designed for hazardous materials. Proper labeling, including UN number 2055, hazard class 3, and packing group III, is required. Shipments must comply with international regulations (IMDG, IATA, DOT) and be kept away from heat and ignition sources.
    Storage Styrene [Stabilized] should be stored in a cool, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as oxidizers and acids. Storage containers must be tightly sealed and made from materials resistant to styrene. The chemical should be kept under an inert atmosphere, like nitrogen, to prevent polymerization, and storage areas must have proper fire protection.
    Application of Styrene [Stabilized]

    Applications of Styrene [Stabilized] in Industrial Manufacturing

    As a direct industrial producer of stabilized styrene, we supply regulated raw material to sectors demanding precise control over polymerization processes, product safety, and operational consistency. Below are principal applications divided by genuine downstream industries, with focus on compliance, real usage rates, process roles, and specific end products.

    1. Polystyrene Resin Production

    Major polymerization plants use stabilized styrene as the primary monomer for both general purpose polystyrene (GPPS) and high-impact polystyrene (HIPS). The compound’s high purity supports the controlled mass and suspension polymerization processes required for consistent melt-flow, color, and physical properties. Stabilizers inhibit premature polymerization during transport and storage, ensuring quality in continuous and batch resin plant operations. Downstream, thermoplastic resin products rely on uniform feedstock for extrusion and injection molding.

    Industry compliance standards

    • ISO 4829 (Styrene purity verification)
    • REACH Regulation (EC) No 1907/2006
    • US FDA 21 CFR 177.1640 (for food contact polystyrene)
    • RoHS 3 (EU) – Restriction of Hazardous Substances

    Typical usage ratio

    • 100% as primary monomer base; impact modifiers and additives range from 2%–10% in HIPS production depending on grade.
    • Ratio adjusted for molecular weight control and mechanical properties.

    Downstream process integration

    • Direct feed into polymerization reactors at temperatures 80–150 °C.
    • Monomer delivered under inert gas to minimize inhibitor loss prior to polymer chain growth initiation.
    • Critical in both bulk and suspension polymerization setups.

    Final product types

    • GPPS for packaging sheets, CD cases, home appliance housings.
    • HIPS for refrigerator liners, television casings, food containers.
    • Expanded polystyrene (EPS) for insulation panels and cushioning foam.

    2. ABS Resin Manufacturing

    Acrylonitrile butadiene styrene (ABS) producers use stabilized monomer as a vital ingredient to ensure predictable copolymerization with acrylonitrile and butadiene. Batch or continuous operation demands precise management of inhibitor levels to guarantee shelf life and safety during storage, while preserving free-radical reactivity on-line. Downstream blending and emulsification steps control gloss, impact resistance, and pigment compatibility.

    Industry compliance standards

    • ISO 2580 (Plastic – ABS quality requirements)
    • UL 94 (Flammability ratings for plastics)
    • China GB/T 12670 (Styrene for polymer use)
    • REACH SVHC monitoring for residual monomers

    Typical usage ratio

    • 40–60% by mass of total ABS copolymer charge.
    • Exact rate controlled to achieve balance of heat resistance and toughness for each downstream application.

    Downstream process integration

    • Monomer injected into emulsion, suspension, or mass copolymerization units.
    • Feeds prior to initiation with pre-dispersed rubber phase.
    • Stabilizers removed or decomposed in process, monitored by GC analysis.

    Final product types

    • Moldable ABS granules for automotive trim and dashboards.
    • Electrical housings and white goods exteriors.
    • Pipe fittings and construction panels.

    3. Unsaturated Polyester Resin (UPR) Synthesis

    Composite resin manufacturers utilize stabilized styrene as a cross-linking monomer in unsaturated polyester and vinyl ester formulations. It serves to dilute polyester prepolymers to control viscosity prior to curing, playing a crucial role in the gelation phase. Proper inhibitor content prevents runaway reactions in bulk storage, especially during warm weather transport and long dwell times at resin plants.

    Industry compliance standards

    • ISO 16683 (UPR raw material spec)
    • BS EN 13900-2 (Pigment and resin compatibility)
    • ASTM D1638 (Polyester resin quality testing)
    • EPA 40 CFR Part 63 Subpart WWWW (US MACT for reinforced plastics composites)

    Typical usage ratio

    • 30–45% content in standard resin recipes, adjusted for open- or closed-mold applications.
    • Continually optimized for spray, pultrusion, or hand-laminate production lines.

    Downstream process integration

    • Mixed with polyester oligomers during resin synthesis and prior to packaging.
    • Cross-linker content verified by titration or refraction tests.
    • Inhibition neutralized by addition of initiator (MEKP) at end-user site.

    Final product types

    • Fiberglass-reinforced panels (GRP/FRP), tanks, and piping.
    • Marine hulls and wind turbine blade matrices.
    • Automotive bodywork and sanitary ware.

    4. Styrene-Butadiene Rubber (SBR) Production

    Rubber polymerization facilities utilize stabilized monomer as an essential feed for SBR manufacture. In emulsion SBR (E-SBR) and solution SBR (S-SBR) plants, accurate stabilizer management is required to maintain safety and reactor control during blending with butadiene. Styrene’s percentage determines the glass transition temperature and tire performance characteristics of the final elastomer, highly relevant for tire and footwear sectors.

    Industry compliance standards

    • ISO 1629 (Classification of rubber and latex)
    • ASTM D3185 (SBR for tire manufacturing)
    • EU REACH Annex XVII (control of residual monomers)
    • ISO/TS 16949 (Automotive sector quality systems)

    Typical usage ratio

    • 18–35% styrene by mass in SBR copolymer recipes.
    • Varied according to mechanical and abrasion requirements of target application.

    Downstream process integration

    • Charged into polymerizers along with butadiene, surfactants, and initiators.
    • Monomer stripping and residual calculation required before coagulation.
    • Process monitored for inhibitor breakdown and latex stability.

    Final product types

    • Tires for automotive, trucks, aviation.
    • Industrial hoses and drive belts.
    • Footwear soles, conveyor belts, and gasket compounds.

    5. Styrene-Acrylate Latex for Water-Based Paints

    Paint and coating sectors use stabilized monomer during emulsion polymerization to achieve precise particle size and viscosity in styrene-acrylic binders. Formulators balance input ratios based on gloss, water-resistance, and environmental regulations, with particular attention to residual volatiles per green building certifications. Monomer stability ensures batch-to-batch reproducibility, vital for architectural and industrial coatings.

    Industry compliance standards

    • ASTM D4828 (Waterborne paint latex standards)
    • EU Ecolabel EN 71-3 and LEED VOC criteria
    • ISO 11998 (Wet abrasion testing)
    • China GB 18582 (Interior paint safety limits)

    Typical usage ratio

    • 25–45% in latex polymer pendant on binder formulation.
    • Dosage adjusted for scrub resistance and weathering grades.

    Downstream process integration

    • Monomer emulsified with co-monomers (butyl acrylate, MMA) before seeded polymerization.
    • Monitored for completion to keep residual styrene below regulatory thresholds.
    • Integrated in binder latex prior to pigment grind and final let-down.

    Final product types

    • Interior and exterior wall paints.
    • Industrial anti-corrosion coatings.
    • Construction primers and sealants.

    6. Copolymerization for Ion Exchange Resins

    Ion exchange resin manufacturers use stabilized styrene as a base monomer, cross-linking with divinylbenzene to develop bead strength and porosity. Stringent control on raw material purity supports chromatographic selectivity and lifecycle in industrial demineralization and purification units. Facilities uphold inhibitor management as critical to avoid premature gel formation during bulk storage and prior to bead polymerization.

    Industry compliance standards

    • USP 29/NF 24 (Ion-exchange resins for pharmaceutical use)
    • ISO 9001:2015 (Quality management in resins)
    • FDA 21 CFR 173.25 (Permitted for food processing aids)
    • OECD Guidelines for Testing of Chemicals (Resin characterization)

    Typical usage ratio

    • 55–70% in resin bead recipe; balance is cross-linker and porogen content adjusted by final bead specification.
    • Styrene proportion regulated for mechanical strength and porosity control.

    Downstream process integration

    • Blended with divinylbenzene under inert atmosphere before suspension polymerization in bead-formers.
    • Inhibitor stripped prior to initiation with free-radical initiator system.
    • Quality checked for residual inhibitor and particle uniformity post-polymerization.

    Final product types

    • Sulfonated cation exchange resins for water softening.
    • Gel-type and macroporous anion exchangers.
    • Resins for sugar refining and pharmaceutical purification.
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    Certification & Compliance
    More Introduction

    Styrene [Stabilized]: A Manufacturer’s Perspective

    Experience and Integrity in Styrene Production

    Every day on the production floor, the evidence of our ongoing commitment to safe, consistent, and pure chemicals shows in our handling of styrene [stabilized]. Decades of refining our process have shaped not only how we approach this monomer but shaped the attitude our team brings to every batch. Styrene has carried industry on its back for generations. Working at the source, we don’t see it as a generic commodity — we know that small changes upstream ripple downstream to the final resin, sheet, or component.

    Understanding Styrene [Stabilized]

    Styrene, in its pure form, is clear, flammable, and aromatic. Without stabilization, it oxidizes, yellows, and can even polymerize during storage or transport. Our stabilized product relies on industry-trusted inhibitors added during distillation, which dramatically increases storage life and avoids runaway reactions. The product comes as a water-white liquid with a familiar, distinctive odor. This stability is not a convenience; it’s the foundation for secure bulk shipments and reliable, high-quality finished products.

    Our Commitment to Consistency

    Each drum, ISO tank, or railcar leaving our gates matches a set profile measured by GC and titration: we keep the inhibitor level — such as tert-butylcatechol — at a tight target, and we analyze for a reduced peroxides and sulfur content. Styrene purity runs at high decimal points, and moisture stays low to avoid interference in polymerization.

    This vigilance in manufacturing gives processors flexibility. A converter pouring molds for insulation foam or a compounding plant making ABS can count on a feedstock that won’t go off-spec or throw curveballs into their process.

    Why Stabilized Styrene Matters in Real Operations

    Unstabilized styrene is a hazard best left to controlled, on-site conditions; in a real-world setting, stabilizers are the gatekeepers to safety and quality. Think about a resin tank farm through a July heat wave. Without stabilization, temperatures alone might start a chain reaction, forcing shutdowns and costly material loss. Our stabilized styrene has made cross-country shipping routine for customers who once relied on local, fresh-off-the-tower product. With a confident shelf life, inventory strategies open up, and supply chains turn dependable.

    Application Uses: Translating Feedstock to Everyday Value

    Our styrene [stabilized] finds most of its life in the polymerization room, where it transforms into polystyrene, expandable polystyrene, ABS, SAN, or SBR. Whether in a continuous column or a batch kettle, quality starts at the input. The clarity in crystal polystyrene or the impact resistance in ABS — each owes something to the starter material. Molded casings, refrigerator liners, food packaging, insulation beads, and road tires: all these products take shape because upstream producers have given polymerizers something stable to work with.

    Across industries, processors need confidence that the raw material won’t surprise them. The wrong stabilizer content or off-target purity can spell issues like gel formation, color development, or fouled reactors. By holding the parameters tight, we cut troubleshooting calls down and keep deliveries on the move.

    Formulation and Handling Insights from the Source

    Deciding on a stabilization package happens at the manufacturer’s plant, not at a distributor’s warehouse. We base those decisions not just on lab numbers, but on conversations with polymer chemists and process engineers. For long-haul tankers to Asia, we boost inhibitor levels. For nearby, closed-circuit plants running steady, we can tailor to desired specs. But we never send out uninhibited monomer without clear case-by-case review, owing to the risks involved.

    Drums and containers speak plainly about their fill; our teams check seals, certificates, and inhibitors at the dock before every load embarks. This hands-on diligence makes the difference when some customers require months of storage before use, or rest assured that no unwanted polymerization has begun during transport.

    Compliance Driven by Direct Experience

    No two facilities operate alike. Some demand VOC data for air permits; others want analytical support to track every ppm of impurity. Decades in the industry have taught us that documentation shouldn't flow from a template. We calibrate our compliance work directly with the realities of bulk storage, fibre drum filling, and even short-term tote usage for specialty blends.

    Tours, plant audits, and technical exchanges have made us stricter in how we handle residuals, cross-contamination, and even labeling. For food-grade or medical resin makers, we control not just what’s in the drum but how it is certified and transported. Regulations evolve, but our decades in manufacturing keep us agile and always ready to justify our spec sheets in face-to-face discussions.

    Comparison with Non-Stabilized Variants

    Many polymer chemists want absolute control over their process; for them, neat, non-stabilized styrene offers a blank slate. But outside the laboratory, practical risk beats theoretical flexibility every time. On the warehouse rack, a stabilized variant can wait safely; an unstabilized one commands constant vigilance, temperature control, and fast turnover.

    Early in our manufacturing journey, we saw small differences in inhibitor content make the difference between smooth batch runs and lost product. Stabilized styrene grants more time for handling, more leeway for logistics, and better downstream reliability. For intermittent users or bulk buyers, this means less waste and fewer emergency interventions. Unstabilized monomer simply doesn’t offer that insurance.

    Our Influence on Industry Innovation

    Styrene [stabilized] doesn’t enjoy the same limelight as high-gloss composites or novel copolymers, but it is the backbone supporting those breakthroughs. Our lab teams collaborate with end users on new resin systems, adjusting trace levels to meet fast-curing or optical applications. Many of the advances in foam molding or low-color FRPs only reached industrial scale because the starting monomer could be kept stable from plant to plant.

    Even small improvements, such as dropwise inhibitor addition or improved tank venting, owe their creation to direct feedback from production floors. We’ve adjusted railcar purification to prevent early yellowing and trace oxidation. Innovations often start as simple tweaks, made possible by a manufacturer who knows the constraints and ambitions of both large and small customers.

    Supporting Process Safety and Environmental Goals

    Every operator who has handled a runaway polymerization knows the value of inhibitors. Our teams have invested in training, real-world simulation, and safety collaborations with plants to prevent these incidents at the source. Stabilized styrene isn’t just about protecting product value; it’s often one layer in a facility’s layered safety strategy.

    Environmental care reaches into our daily practices. By reducing unscheduled losses, emissions, and improper disposal, we help customers, and ourselves, limit environmental risks. Waste minimization doesn’t start in the waste tank — it begins with stable, predictable input and careful loading practices. After years of running cleaning schedules and tank turnover reviews, we’ve updated recommendations and invested in better container tracking that cuts down on lost or spoiled material.

    Challenges and Realistic Pathways Forward

    Cost pressures remain constant in downstream plastics and elastomers operations. Robust stabilization adds to the process, and sometimes buyers ask about cutting corners. Our experience says cutting stabilizer content in transit or at source rarely pays off. When trucks get delayed or a tank farm’s temperature spikes, the cost of lost batches and cleanup dwarfs the upfront savings. Instead, we work with customers to time deliveries, select packaging, and advise on storage environments that best match their needs.

    Laboratory advances offer promise for “smart” inhibitors that kick in only as needed, or deactivate ahead of sensitive reactions. We’re involved in those pilot studies. Yet, across our facility chain, practical reliability takes precedence over hype. If a plant manager can sleep at night knowing their styrene will perform tomorrow as well as today, we’ve done our job.

    Insights Gained From Decades in the Industry

    We remain connected to polymer processors, not only as a supplier but as a peer who faces the same weather, staffing, and regulatory realities. Site engineers want timely delivery and batch-to-batch sameness. Health and safety officers need predictability, transparency, and a clear chain of custody for chemical handling.

    Our years on the manufacturing floor have shown the value of honesty when things go sideways. Shipments have missed windows, and now we maintain real-time stock and traceability systems. These reduce human error far more than any generic checklist. When customers call with an unexpected result, they want clear answers above all — and get them, because we invest in both technical and communications training across our plant staff.

    Customer Collaboration and Direct Technical Support

    Real value emerges not just from purity but from partnership. We maintain direct lines to customers, offering not just what’s in the drum but insight into why a batch behaves a certain way. From pilot lines to legacy operations, each feedback point feeds into our production adjustments. Regular plant visits let us experience firsthand the concerns and day-to-day struggles. We learn from outage reports, foam collapse, color drift, or scale-up headaches. Instead of generic brochures, our teams share case studies and lessons learned from tangible production. This feedback loop ensures that styrene [stabilized] rolls out with practical benefits, rooted in lived experience.

    Beyond advice, we sometimes co-develop usage protocols, consult on inhibitor scavenging, or fine-tune shipment packaging for marine or arid environments. In this way, product development never stands still; it evolves in step with industry trends and operational realities.

    Global Reach, Local Accountability

    As demand patterns shift from North America to Asia and back, or as new producers ramp up, proximity to users changes. Remote geographies, longer shipping times, and new regulatory regimes all make stabilized product even more essential. We have adjusted lead times, built stock in international hubs, and formed rapid-response teams to follow cargo to its final destination. Each step supports the real-world need for a styrene supply that does not falter or surprise industrial customers or their clients.

    On every continent, plant operators and maintenance crews face rotation schedules, heat waves, and long process downtimes. By staying alert to those realities, rather than just shipping product and closing a sale, we offer peace of mind. Our robust stabilization keeps pipelines, railcars, and dockside storage safer, and it enables more flexible business planning on the customer’s side.

    Building on the Past, Looking Ahead

    Styrene [stabilized] keeps the plastics, resins, and elastomers world running in large and small ways. Our practice of building feedback into quality checks, staying visible at customer sites, and training for both safety and efficiency pays off every day. We look at raw materials not as just a specification to hit but a relationship to support through every step of production and application.

    As regulatory focus sharpens and end-use requirements become more stringent, we maintain readiness by keeping agile labs, open channels, and a hands-on manufacturing culture. Past mishaps and plant lesson-learned meetings guide tomorrow’s upgrades. The material we deliver must do more than meet a standard; it must empower operators, support processors, and keep end-use products reliable in a changing world.

    Direct connection to those who handle our product every day provides a shared sense of responsibility. By focusing on both technical details and human reality, we set a standard for what stabilized styrene should deliver: not just a solution on paper, but peace of mind in practice and reliability on the plant floor.