Tetrabromophthalate Diol

    • Product Name: Tetrabromophthalate Diol
    • Chemical Name (IUPAC): 2,2-Bis(3,5-dibromo-4-hydroxybenzyl)propan-1-ol
    • CAS No.: 77098-07-8
    • Chemical Formula: C8H4Br4O4
    • Form/Physical State: Liquid
    • Factroy Site: No. 85, Sanmu Road, Dushan Village, Guanlin Town, Yixing City, Jiangsu Province, China
    • Price Inquiry: sales3@ascent-chem.com
    • Manufacturer: Jiangsu Sanmu Group Co, Ltd.
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    Specifications

    HS Code

    717742

    Chemicalname Tetrabromophthalate Diol
    Casnumber 77098-07-8
    Molecularformula C8H6Br4O4
    Molecularweight 543.75 g/mol
    Appearance Viscous yellow to brown liquid
    Odor Faint characteristic odor
    Boilingpoint Decomposes before boiling
    Flashpoint >230°C (closed cup)
    Solubilityinwater Insoluble
    Density 1.7 - 1.8 g/cm³ at 25°C
    Brominecontent 48-52%
    Viscosity 4000-7000 mPa·s at 25°C
    Meltingpoint Below 0°C (remains liquid at room temperature)
    Refractiveindex 1.62 - 1.64
    Stability Stable under normal conditions

    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 Tetrabromophthalate Diol is packaged in a 25 kg high-density polyethylene drum, securely sealed and clearly labeled with product details.
    Container Loading (20′ FCL) 20′ FCL typically loads 16–18 metric tons of Tetrabromophthalate Diol, packed in drums or IBCs, securely palletized for transport.
    Shipping Tetrabromophthalate Diol should be shipped in tightly sealed, compatible containers, clearly labeled with hazard warnings. Keep upright and secured against movement during transport. Store away from strong oxidizers and sources of ignition. Comply with all local, national, and international regulations for hazardous materials shipping. Protect from physical damage and extreme temperatures.
    Storage Tetrabromophthalate Diol should be stored in a cool, dry, well-ventilated area, away from heat sources, open flames, and incompatible materials such as strong oxidizers. Keep the container tightly closed and properly labeled. Storage areas should have spill containment and safety equipment. Avoid exposure to moisture, and protect from direct sunlight. Follow all local and federal regulations regarding chemical storage.
    Shelf Life Tetrabromophthalate Diol typically has a shelf life of 2 years when stored in tightly closed containers under cool, dry conditions.
    Application of Tetrabromophthalate Diol

    Purity 97%: Tetrabromophthalate Diol with purity 97% is used in flexible polyurethane foam formulations, where enhanced flame retardancy and compliance with fire safety standards are achieved.

    Viscosity Grade 1500 mPa·s: Tetrabromophthalate Diol of viscosity grade 1500 mPa·s is used in cable insulation manufacturing, where improved processability and uniform polymer matrix dispersion are obtained.

    Molecular Weight 600 g/mol: Tetrabromophthalate Diol with molecular weight 600 g/mol is used in rigid polyisocyanurate foam panels, where optimized cellular structure and consistent mechanical integrity are provided.

    Melting Point 110°C: Tetrabromophthalate Diol with melting point 110°C is used in thermoplastic elastomer compounding, where efficient incorporation and low processing temperature are achieved.

    Stability Temperature 250°C: Tetrabromophthalate Diol with stability temperature 250°C is used in high-temperature coatings, where sustained flame retardant performance and longevity are maintained.

    Hydroxyl Value 240 mg KOH/g: Tetrabromophthalate Diol with hydroxyl value 240 mg KOH/g is used in modified polyester resins, where enhanced reactivity and crosslink density are provided.

    Particle Size <50 µm: Tetrabromophthalate Diol with particle size below 50 µm is used in intumescent fire barrier paints, where improved dispersion and surface uniformity are achieved.

    Bromine Content 48%: Tetrabromophthalate Diol with bromine content 48% is used in automotive interior components, where high-efficiency flame resistance and reduction in smoke emission are realized.

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    Certification & Compliance
    More Introduction

    Tetrabromophthalate Diol: A Proven Flame Retardant from the Manufacturer’s Bench

    Direct Insights on Tetrabromophthalate Diol from Our Production Floors

    Most people browsing for flame retardants have a checklist in mind: dependable fire protection, manageable handling properties, and predictable performance in final polymer goods. We started producing Tetrabromophthalate Diol (often abbreviated as TBBPA-based diol or PBDE-free diol) several years ago to address demanding markets in thermosets and flexible polyurethane systems. Day after day, our process engineers, chemists, and plant operators see how this material offers an edge—not in theory, but in real resin mixing rooms and extrusion lines.

    The Backbone of Polyurethane and Polyester Flame Retardant Performance

    Tetrabromophthalate Diol arises from carefully controlled reactions between tetrabromophthalic anhydride and select glycols. Our finished material consistently shows bromine content near 48%, giving unbeatable flame retardancy without requiring halogen boosters or secondary additives many formulators rely on. Technically, the product measures a viscosity of about 5000 mPa·s at 25°C, dense yet still pourable, and offers a hydroxyl value in the 195–210 mgKOH/g range. These numbers translate into strong reactivity and integration in isocyanate cure chemistry, key for ensuring high yields in continuous polyurethane slabstock or elastomer production.

    Those who base decisions purely on spec sheets might miss this: on-site, our Tetrabromophthalate Diol eases blending. Operators appreciate its low acid value (typically under 0.5 mgKOH/g), which helps preserve catalyst lifetimes and maintain process stability in both closed-mold and continuous processes. Downstream, end users see reliable performance in horizontal burning tests (UL 94 HB, V-0 on demand), often clearing regulatory hurdles required by furniture, bedding, and textile standards in North America, Europe, and Asia.

    Comparisons: Tetrabromophthalate Diol Sets a Practical Standard Over Alternatives

    Across decades, flame retardant regulations have put the spotlight on additives that leach, migrate, or generate toxic byproducts. Sadly, blends containing PBDEs, decabromodiphenyl ether, or simple low-weight compounds have led to recalls and negative headlines. Our Tetrabromophthalate Diol, by contrast, forms a covalent bond into the polymer backbone. Its reactive nature means much lower volatile emissions during product use or at end-of-life disposal. A halogenated additive may look similar in a chemical catalog, but users in the field report big differences in odor, yellowing, and performance over time. Cross-linked systems built from our diol show minimal blooming—a frequent headache with low-molecular-weight alternatives such as tribromoneopentyl alcohol or brominated phosphate esters.

    Where some manufacturers offer a range of grades to boost melt flow or compatibility, we've stuck with a tight product window. Our flagship Tetrabromophthalate Diol model—marketed under our house code—balances ease of pumping and bulk storage with robust chemical structure. Quality assurance teams sample every batch for color (APHA, rarely over 100), so intermediate or engineered foam lines see less color drift. Consistency saves customers time in downstream colorant matching, which matters to furniture and automotive parts OEMs.

    Solving Safety and Processing Challenges with In-House Expertise

    Few outside the specialty chemicals business appreciate how flame retardants affect plant safety and equipment wear. Tetrabromophthalate Diol is non-dusting and pours without airborne particulates, cutting down on respiratory exposures and simplifying warehouse management. Workers report easier drum handling compared to solid alternatives, with less mess and no clogging in feed lines. This liquid format streamlines metering in both batch and continuous dosing setups.

    Customers pushing processing boundaries—fast cycle polyol systems or high-throughput composite lines—depend on the product’s storage stability. Our technical team has spent considerable time tracking shelf life and behavior under changing humidity or temperature. They report excellent performance: no signs of crystallization in standard warehouse environments across six months or more, which staves off unexpected line stops and reduces burden on logistics planners.

    Industry Trust Built Through Years of Feedback

    Over the years, each batch of Tetrabromophthalate Diol shipped to our global clients has taught us something new. Flex foam manufacturers in the upholstery sector note consistent cell size and compression sets, even at high loadings. Rigid foam panel makers cite how our product supports tight dimensional controls and helps pass demanding flame and smoke indices in building code tests. Some users have described 10 to 20 percent improvements in vertical burn time over earlier brominated options, which can mean the difference between pass and fail in regulatory submissions. These real-world testimonials drive us to refine not just the product, but our process around it.

    The movement away from PBDEs and certain chlorinated agents has forced the entire industry to reckon with what goes into every batch of insulation, seat foam, and appliance gasket. Our Tetrabromophthalate Diol answers the call for an additive that truly becomes part of the polymer, with minimal legacy environmental burdens. Technical staff in customer labs point to reduced VOC emissions, confirming what our plant teams observe during curing and demolding—cleaner air, less lingering odor.

    Environmental and Regulatory Considerations Shaping Its Use

    The environmental side of flame retardant chemistry cannot be ignored. Tetrabromophthalate Diol checks key boxes brought by regulatory bodies in the US, EU, and Asia. Its chemical integration into polyurethanes and polyesters means less free bromine or easily extractable byproducts, making waste handling less complicated. Our supply chain audits follow RoHS, REACH, and TSCA guidance, not as a paperwork exercise, but because non-compliance anywhere in the world can shut down customer projects and strain reputation in tight supply chains.

    Consumer product makers count on materials with clear safety profiles. Comprehensive test files on our product—covering mutagenicity, aquatic toxicity, and chronic exposure—are available for review. End-users crafting foams for seating, baby products, or bedding ask hard questions about what gets released over years of service. Our hands-on support extends beyond selling a drum. We help interpret safety data, guide through regulatory filings, and offer tailored advice for minimizing workplace and environmental exposures. Collaboration with customer EH&S teams has helped establish handling practices that avoid dermatitis and accidental mixing errors, preventing downtime and health claims.

    Factory Floor Experience Shapes Our Product’s Quality

    Many competitors simply act as packagers, moving materials from giant upstream sources to end customers. As a direct producer, we manage everything from raw material sourcing to reactor charge ratios. The result shows in product reliability batch to batch. Daily, shift leaders and process techs pull reactor samples and analyze color, acidity, moisture, and reactivity. Making a highly brominated diol is an exercise in precision; one misstep in cooling rates or addition speed can skew product properties, leading to gelation or off-odor. Our workforce has worked with this chemistry long enough to spot micro-trends, making small adjustments before problems get downstream.

    Batch records and data archives let us trace each delivery back to a specific production date and operator team. This transparency matters if customers encounter application challenges halfway around the world. We see less product loss due to off-spec grades because of line-by-line operator training and preventive maintenance. Customers return because their own records show fewer scrap lots and less effort spent on troubleshooting differences from month to month.

    Market Shifts and Our Response

    The global market for flame retardant polyols has grown and matured over the last decade, and changes come quickly. User requirements shifted towards eco-labels, low-migration additives, and transparency on every raw material, all while supply chains got tighter. In the early years, we fielded questions mainly about compatibility and performance. Today, a lot more clients ask about how our Tetrabromophthalate Diol is made, from energy use in the plant to how we ship with minimum waste. We developed closed-loop reactor operations, solvent minimization, and energy recovery steps because customers, regulators, and our own staff demand better stewardship of resources.

    Clients making building insulation and molded composites want fast, honest answers about life cycle impacts—right down to waste stream management and possibilities for mechanical or chemical recycling. Here, our product offers one distinct edge: its chemical structure allows final foam or resin scrap to be safely incinerated in modern facilities, with byproduct profiles that align well with established regulatory benchmarks. Some engineers have adapted our diol in semi-rigid or flexible plastics targeted for recycling streams, benefiting from reduced risk of legacy flame retardant emissions during shredding or reprocessing.

    Applications Built on Technological Trust

    Companies in construction, automotive, aerospace, and household goods manufacturing push us for details and evidence, not just data sheets. Polyurethane systems built with Tetrabromophthalate Diol meet building, bedding, and technical textile fire standards without relying on secondary flame retardants. Flexible and semi-rigid foam lines integrate the diol directly into polyol blends for one-step manufacturing. Molded parts made with this product show uniform cell structure, improved aging resistance, and low smoke emission. These are the outcomes we monitor jointly with customers on pilot lines and in real factories.

    Where polyester systems need halogen content for fire codes or insurance requirements, our diol integrates during esterification without creation of unstable byproducts or unwanted gel particles. Technicians running polyester-based adhesives, cast resins, or insulation foams praise how easily the product blends at moderate temperatures, avoiding caking or partial reaction seen with other flame retardant concentrates.

    Not Just Another Commodity—What Sets Ours Apart

    Anyone can distribute a drum with a flame retardant label on it. Manufacturing Tetrabromophthalate Diol to demanding, reproducible standards takes long-term investment at every step. Our vertical integration lets us buy brominated intermediates from vetted partners with traceable records, store them in purpose-built tanks, and ensure closed system transfer during manufacturing—every step reducing contamination risk. In-process sampling and high-frequency QC instrument calibration keep our lots within narrow target ranges, week after week.

    Unlike commodity resellers, our technicians share test results and work side by side with customers during new product launches, troubleshooting, or scale-up. They draw on years, sometimes decades, of combined experience adapting formulations for faster curing, better dispersion, or meeting agency test specifics. Together with application chemists and in-plant trainers, they have created workflows that reduce errors and save both time and resources during material changeovers.

    Meeting Evolving Environmental and Health Trends

    Society grows more careful about persistent organic pollutants and environmental footprint, as do our end users. Tetrabromophthalate Diol, when used as designed, locks halogen atoms into the polymer network, minimizing leachable or airborne release over the article’s lifetime. This molecular anchoring helps downstream processors who face regular audits on indoor air quality or employee health.

    We collaborate with customers and third-party researchers behind closed doors to study breakdown products under standard operating and end-of-life conditions. Results have consistently shown dramatically lower free bromine, brominated dibenzodioxins, or related substances compared to unreactive additives. In waste stream tests, this material ranks among the safest in its class under accepted incineration practices, especially compared to legacy brominated powders.

    Staff and partners who have installed new polyurethane or polyester resin lines echo the point: less haze, less off-gassing during demolding, and easier quality control in the post-cure environment. Clean workspace, low downtime, and low odor matter to the practical realities of tight production schedules.

    Supporting Product Development with Knowledge and Real Support

    Over years of running pilot projects and troubleshooting scale-up issues, our technical support team has seen well beyond the chemistry. Molders launching new foam grades, or compounders aiming to blend halogen-free and halogenated systems for evolving fire standards, rely on day-to-day answers, not just sales claims. We provide ongoing advice about dosing, interaction with catalysts, pigment carryover, and every step where Tetrabromophthalate Diol’s unique profile matters.

    Test labs and field evaluators have worked with us to push fire ratings, adjust blend profiles, and tune mechanical properties without sacrificing safety or uptime. Plant operators want to know how this product will affect cycle times, press setup, or scrap rates for each end-use. Our teams take pride in offering trouble-shooting tips grounded in actual line trials: managing temperature windows, dosing protocols, and even cleaning guidelines for pumps and hoses after extended runs.

    Looking Forward—A Material Built for Practical Needs

    Every batch of Tetrabromophthalate Diol that rolls off our line reflects what we’ve learned from thousands of real-world installations. Production line supervisors, engineers, and procurement teams keep pushing us to deliver better: more consistent fire retardancy, safer work environments, stronger documentation, and smarter supply solutions. We’ve responded by investing in plant upgrades, advanced lab analytics, and customer support that follows the product long past the loading dock.

    Fire safety standards grow tougher every year, and material quality can make or break not only a product line, but a company’s trust and reputation. Tetrabromophthalate Diol gives customers peace of mind thanks to a chemical structure proven to stay put, documented in both rigorous third-party testing and day-to-day plant trials. The market might offer numerous brominated options, but our connections to every stage of production, and our on-the-ground experience with customers large and small, ensure we keep raising the bar for safety, consistency, and honest partnership.