Products

Tetrabromophthalate Diol

    • Product Name: Tetrabromophthalate Diol
    • Alias: PN-59
    • Einecs: 253-057-0
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    476925

    Chemical Name Tetrabromophthalate Diol
    Synonyms Tetrabromophthalic Anhydride Diol, PB-2, BDP
    Cas Number 36483-57-5
    Molecular Formula C16H10Br4O4
    Molecular Weight 627.87 g/mol
    Appearance White to off-white powder
    Melting Point 110-130°C
    Solubility In Water Insoluble
    Bromine Content 49-52%
    Flash Point >250°C
    Purity >98%
    Primary Use Reactive flame retardant for polyurethanes and polymers

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

    Packing & Storage
    Packing A 200 kg blue HDPE drum labeled "Tetrabromophthalate Diol," featuring hazard symbols and batch information, securely sealed for transport.
    Shipping Tetrabromophthalate Diol should be shipped in tightly sealed containers, clearly labeled, and protected from heat, moisture, and direct sunlight. Ensure the packaging is compatible with brominated compounds and prevents leaks. Transport in accordance with local, national, and international regulations, classifying it as a hazardous chemical if required. Handle with appropriate safety precautions.
    Storage Tetrabromophthalate Diol should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from direct sunlight and incompatible materials such as strong oxidizers. Keep the storage area secure and clearly labeled. Avoid moisture and excessive heat. Follow all relevant local, state, and federal regulations for the storage of chemicals, and ensure appropriate spill containment measures are in place.
    Application of Tetrabromophthalate Diol

    Purity 98%: Tetrabromophthalate Diol with 98% purity is used in high-performance polyurethane foam production, where enhanced flame retardancy and regulatory compliance are achieved.

    Viscosity Grade 500 cps: Tetrabromophthalate Diol of 500 cps viscosity grade is used in flexible PVC compounding, where improved processability and uniform dispersion of flame retardant properties are obtained.

    Molecular Weight 515 g/mol: Tetrabromophthalate Diol at 515 g/mol molecular weight is used in rigid polyester resin systems, where optimized incorporation and consistent mechanical properties are ensured.

    Melting Point 110°C: Tetrabromophthalate Diol with a melting point of 110°C is used in thermoplastic elastomer formulations, where stable integration during melt processing is facilitated.

    Stability Temperature 300°C: Tetrabromophthalate Diol with a stability temperature of 300°C is used in electronics potting compounds, where high thermal resistance and long-term material durability are realized.

    Halogen Content 65%: Tetrabromophthalate Diol containing 65% halogen content is used in wire and cable insulation coatings, where superior self-extinguishing capability and fire safety standards are met.

    Hydroxyl Number 200 mg KOH/g: Tetrabromophthalate Diol with a hydroxyl number of 200 mg KOH/g is used in reactive flame retardant polyol blends, where increased chemical reactivity and crosslinking efficiency are provided.

    Water Content <0.1%: Tetrabromophthalate Diol with water content less than 0.1% is used in specialty adhesives manufacturing, where moisture-sensitive formulations are protected and product shelf life is extended.

    Particle Size <20 microns: Tetrabromophthalate Diol with particle size below 20 microns is used in high-clarity polyurethane coatings, where uniform dispersion and minimal haze are achieved.

    Color Value APHA <100: Tetrabromophthalate Diol with APHA color value below 100 is used in transparent thermoset systems, where optical clarity and aesthetics are preserved.

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    Certification & Compliance
    More Introduction

    Tetrabromophthalate Diol: A Closer Look from the Manufacturer’s Floor

    Understanding Tetrabromophthalate Diol: Origins and Development

    Years of hands-on work in flame-retardant chemistry have shown me how crucial Tetrabromophthalate Diol is for industry manufacturers chasing higher safety standards. Selling this polyol blend is less about a one-off transaction and more about solving persistent flammability challenges for plastics, polyurethanes, and coatings. As the team in the plant, we work closely with process engineers and product managers who want solutions that function reliably—not just chemicals that tick a box. We’ve listened to their concerns about regulations, performance drift, and variability between production batches.

    Our plant produces Tetrabromophthalate Diol (often labeled as “Brominated Diol” or its more specific chemical designation—though model listings like BDP or RHTB-03 sometimes come into play). Several generations of scaling up and process refinement mean that the product now comes out with consistent color, purity, and bromine content, batch after batch. That’s not a footnote; it has a direct impact on customer production uptime and materials quality.

    Tetrabromophthalate Diol starts from high-purity phthalic anhydride and undergoes a bromination process tightly controlled by automated dosing and temperature feedback. Small changes in stirring speed or reaction timing can shift the brominated content and cause off-odors or darkening. Operators on our line deal directly with those risks, keeping the parameters in spec so the final material keeps its pale yellow hue and spot-on hydroxyl value.

    What Sets Tetrabromophthalate Diol Apart on the Floor

    Not all flame-retardant polyols behave the same in a reactor. Some fade or discolor in finished products; others contribute excess acid that corrodes equipment or destabilizes foams. Tetrabromophthalate Diol, as we have seen on production trials, stays neutral under heat and combines well with other polyols and isocyanates. Its low acidity—often below 0.2 mg KOH/g—reduces side reactions, minimizing fisheyes or porosity problems in flexible foams or castings.

    In the polyurethane industry, the fine line between fire performance and processing stability can mean the difference between passing a burn test and failing a batch. Our product's bromine content consistently hits around 48% by weight. That high load means formulators can use less additive overall—lowering cost and avoiding some of the viscosity spikes or settling issues that crop up with solid-phase or powder alternatives. We have sent staff to customer plants, watching as they mix trial batches: smooth blending and clear end-use compatibility still matter more than any claim on a spec sheet.

    Specifications and Real-World Observations

    Our production lines yield Tetrabromophthalate Diol as a viscous, pale yellow liquid. Typical properties fall in the range of:

    Every batch of product faces QA scrutiny. Laboratory titration, color checks, and FTIR analysis have earned us a reputation for tight spec adherence. Some buyers focus on purity; others want application insight. We handle both. Broader context comes from years spent managing production trials in foam, film, and rigid panel manufacturing. We’ve seen plant managers chasing denser foams where too much acidity or impurity kills reactivity and product yield. Formulators want consistent response; we deliver composition that lets operators tune mixes without hunting for lost lots or off-product.

    Solutions That Stick: Working with Polyurethanes

    Much of the Tetrabromophthalate Diol leaving our loading bays heads for polyurethane foam—or coatings and adhesives, where insurance companies and regulators set ever-stricter limits on combustibility. The goal is usually to pass vertical burn tests (UL-94, Cal TB117, among others) without losing flexibility, bounce, or clarity. Competing brominated or chlorinated flame retardants often drop out of liquid systems or invite phase separation over time, wearing out mixing equipment or fouling metering pumps.

    Our material stays in solution, even after storage in varying climates. Operators avoid downtime chasing blocked pumps or gels. This stability comes from continual investment in purification and filtration processes. Double distillation, monitored by real-time inline sensors, catches tailings and byproducts that degrade standard alternatives. We run reference trials alongside major industry polyols—both aliphatic and aromatic types—to measure compatibility and reactivity side by side. Over years of production, our version consistently blends without cloudiness or dropout.

    Additive performance also extends beyond fire resistance. Brominated diols impart flexibility to cured foams and elastomers, making it possible to meet firmness and rebound targets in furniture or automobile interiors. Some rigid foam lines require higher reactivity; others push for longer pot life. Field tests with our product have shown the impact—both on the final flame rating and on process efficiency, with fewer off-spec lots and smoother pouring.

    How Tetrabromophthalate Diol Outperforms Other Flame Retardants

    Old halogenated additives, like decabromodiphenyl ether and tetrabromobisphenol A, once dominated, but have drawn regulatory fire for persistent organic pollutant risks. In contrast, Tetrabromophthalate Diol, designed as a reactive component, covalently binds to the polymer matrix instead of migrating or volatilizing out of finished products. This reaction reduces long-term emissions and odor in finished goods, meeting stricter indoor air quality and RoHS limits.

    Some alternatives come only in solid or powder form. Users must manage complicated dispersion steps, leading to dust hazards, inconsistent flame retardancy, or blockages in feed lines. Switching to liquid Tetrabromophthalate Diol minimizes handling errors and loss, letting foam plants automate dosing and boost yields.

    Using Tetrabromophthalate Diol: Simplifying Formulation and Processing

    From small-batch cast elastomers to high-speed slabstock foam lines, every manufacturer values reliability and simplicity. Loading this brominated polyol directly into reactors, tanks, or lines eliminates additional wetting agents or anti-settling steps. Its similarity in viscosity and reactivity to common polyester polyols supports the drop-in replacement designers frequently need during product line upgrades.

    Because we’ve dealt with everything from sticky tanks to out-of-spec blends, we put resources into operator guidance. Whether a batch is destined for flexible automotive components, residential furniture, or construction insulation boards, direct conversations with production supervisors teach us where processing bottlenecks form. Many customers want to keep equipment settings stable between jobs—temperature, pressure, catalysis—and clean up with water or routine solvents. We formulate our product to meet these real-world concerns, not just baseline purity figures.

    Tetrabromophthalate Diol can serve as the sole flame retardant in some foam formulations, or join a matrix of phosphorus or nitrogen-based additives where even higher V-0 ratings are mandatory. No two plants run recipes the same way. We have watched as small tweaks in polyol type or catalyst amount push flammability and curing profiles in opposite directions. Our tech support team, often composed of operators-turned-specialists, provides advice drawn from hours spent not behind a desk but out at the tank farm and the foam block saw.

    Meeting New Demands: Trends in Eco-Friendly Flame Retardancy

    Environmental policy is reshaping the flame-retardant sector with every major regulatory update. Over the past five years, demand has shifted firmly away from legacy additives that leach or persist in soils and aquatic systems. We’ve responded to this shift in our own supply chain—working to source greener bromine derivates and installing closed-loop recovery systems to reclaim reaction washwaters. Responsible manufacturers must balance performance with stewardship. Cleaner water and lower process waste pay off both in regulatory inspections and in downstream product approval.

    More converters now ask for documentation on residual free bromine or total organic halides. We analyze for these byproducts using modern chromatographic and ion-selective techniques, updating our process every time an agency or industry body raises new requirements. Lower residues mean finished goods that stand up to scrutiny in automotive interior, electronics, and building code review.

    Supporting Safe and Efficient Production: Training and Continuous Improvement

    Hands-on experience proves that the best product fails if users aren’t trained. Application engineers from our team regularly visit customer plants, helping chemical handlers set up pumps, check compatibility, and measure out additive loads. Recent process upgrades included tighter tank agitation specs and improved packaging with tamper-safe seals, cutting down exposure risk and contamination. Teaching product safety procedures and good housekeeping—handling, spillage, and cleanup—stands on equal footing with producing a pure commodity.

    From a manufacturer’s standpoint, quality means more than hitting a number. Feedback from foamers or compounders who run multimillion-pound lines goes straight into our R&D iterations. If a batch picks up trace cloudiness after months on the shelf, we revisit vacuum stripping or filtration steps. If a rumor spreads about off-odor or tarnished color, we audit our process tanks and raw material streams. Lives—and product reputations—ride on these corrections.

    Lessons from the Factory Floor: Why Tetrabromophthalate Diol Stays Relevant

    Market trends and regulations keep reshaping the “ideal” flame retardant, but practical experience keeps Tetrabromophthalate Diol at the foreground for a reason. Customers want to streamline SKUs and reduce machine downtime. Some years ago, a large furniture manufacturer spent weeks troubleshooting shrinkage and burning in new foam lines; trialing our material brought burn rates down and cut the number of off-color pours by half. That immediate feedback loop is hard to match in paperwork. Our first response is always to test changes in our pilot plant, because downstream users bear the real brunt of inconsistent supply.

    Feedback from compounding partners drives us to test product every month for acid spikes, bromine drop, or viscosity increases. We subject each lot to accelerated aging at elevated temperature and humidity, to learn what happens during shipment or delayed use. By keeping product shelf life and handling requirements in real-world ranges, we help buyers plan inventory and protect margins.

    Comparing Alternatives: What Manufacturers Really Need

    Purchasing agents sometimes fixate on declared flame-retardant content or eye price per kilo, only to chase costlier process changes later. Liquid brominated diols remove a step from production—no need for special milling, pre-dispersion, or costly additive carriers. Solid or powder options hold up poorly where tank-fed injection rules the day. In countries where chemical regulations tighten yearly, using a product that chemically locks into the polymer guarantees lower emissions and easier compliance. Our regular analytical reports support this compliance, feeding into customer audit processes without extra expense.

    We have supplied both pure and blended grades tailored for flexible, semi-rigid, and rigid foam needs. The advantage: single-source integration, which reduces shipping and warehousing errors. In side-by-side production, customers observe faster cycle times, sharper product color, and fewer costly gel or dropout issues. None of that comes through in a simple product listing or MSDS.

    Future Directions and Our Commitment to Collaboration

    The pace of chemical manufacturing does not slow for new compliance regimes. As energy prices and freight costs fluctuate, every ounce of process efficiency helps customers stay ahead. We watch regional trends—especially in Asia-Pacific and North America—where construction codes and safety agencies press for safer, more transparent flame-retardant sourcing. In turn, our R&D program prioritizes reducing impurities, lowering residual monomers, and extending product shelf life. By investing in flow chemistry and closed-system automation, we maintain tight control at every stage, so performance for our customers never varies.

    Partnerships across the value chain matter. Polyurethane formulators, converters, and end-users bring challenges—sometimes a sudden discoloration, sometimes a push for higher surface quality in finished goods. We invest lab and floor time to understand their hurdles, drawing on years spent not only making product but also troubleshooting in their environments. Collaboration resolves manufacturing issues faster and lets us adapt with every cycle.

    Supporting Our Customers beyond the Product

    Trust develops not from a single on-time delivery but from reliable, honest follow-up. We employ process techs who have grappled with sticky resins, gluey tanks, and failed burn tests. They are ready to guide newcomers and seasoned users alike, drawing from a practical understanding of plant operations and chemical handling.

    Tetrabromophthalate Diol fills a crucial niche for those needing a fire-safe, easy-to-handle liquid additive that upholds evolving standards and manufacturing needs. Our experience, built batch by batch, keeps the product relevant as applications and regulations evolve. The work does not end at the factory gate—each shipment is a commitment to product quality, process improvement, and partnership in making goods safer and more robust, one tank at a time.

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