|
HS Code |
961667 |
| Iupac Name | 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane |
| Cas Number | 21850-44-2 |
| Molecular Formula | C21H20Br8O2 |
| Molar Mass | 971.46 g/mol |
| Appearance | White to off-white powder |
| Melting Point | 104-106°C |
| Solubility In Water | Insoluble |
| Density | 2.51 g/cm³ |
| Main Use | Flame retardant |
| Boiling Point | Decomposes before boiling |
| Stability | Stable under normal conditions |
| Chemical Family | Brominated flame retardants |
| Synonyms | Tetrabromobisphenol A bis(2,3-dibromopropyl ether), TBBPA-BDBPE |
| Ec Number | 244-617-5 |
As an accredited 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
|
Purity 98%: 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane with 98% purity is used in high-performance flame-retardant polycarbonate compounding, where it ensures consistent halogen loading and superior fire resistance. Melting Point 120°C: 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane at a melting point of 120°C is used in thermoplastic extrusion applications, where it allows smooth blending and uniform dispersion within polymer matrices. Particle Size <10 µm: 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane with particle size below 10 microns is used in powder coatings, where it promotes homogeneous coating thickness and optimum surface finish. Thermal Stability 300°C: 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane with thermal stability up to 300°C is used in epoxy resin formulations, where it maintains structural integrity during high-temperature processing. Bromine Content 58%: 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane with 58% bromine content is used in circuit board laminates, where it provides efficient flame retardancy and regulatory compliance. |
| Packing | The chemical is packaged in a 500-gram amber glass bottle, tightly sealed with a screw cap and clearly labeled with hazard warnings. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): 8 metric tons packed in 160 drums, each 50 kg net weight, securely loaded for safe transport. |
| Shipping | **Shipping Description:** 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane is shipped in tightly sealed, chemical-resistant containers, protected from light and moisture. Transport must comply with relevant hazardous materials regulations, including proper labeling and documentation. Handle with care and use appropriate personal protective equipment during handling and shipping. Store at room temperature in a well-ventilated area. |
| Storage | 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers. Protect from moisture, direct sunlight, and sources of ignition. Clearly label the container and store in accordance with local regulations and safety guidelines for halogenated organic compounds. |
| Shelf Life | 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane typically has a shelf life of two years in sealed, dry conditions. |
Competitive 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@alchemist-chem.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: sales7@alchemist-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Years of practice in making brominated flame retardants teach lessons no trade magazine can capture. In our facility, every batch of 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane runs through systems set up for high consistency and low impurity content. The people on our team don’t just clock in and out—they adjust parameters by hand, check the melt points, check the color, and don’t sign off on product unless it meets a standard set by professionals who’ve seen both the easy and the tough sides of polycarbonate and ABS production.
This flame retardant stands apart due to its high bromine content and robust molecular structure, supporting those fabricating electrical housings, connectors, and business machine parts. Each lot produced is intended for direct processing—no need for special pre-treatment—helping compounders and converters save time and labor when scrambling to finish schedules or custom color matches. Real-world manufacturing doesn’t leave room for guesswork; every kilogram needs to perform reliably, batch after batch, so project delays simply don’t happen.
With a melting point set firmly between 110°C and 125°C, this compound integrates into compounding lines without the gassing or plate-out issues lower grade retardants run into. The powder form is free-flowing, cutting down on bridging and clogging during loading; it pours easily and disperses well. Bromine content finishes above 67%, so formulators and designers get the margin to meet tough UL94 V-0 ratings at lower loading levels. Dusting and friability get addressed at the synthesis stage, letting operators take material off a line without clouds of fine powder leaking into breathing air or settling into machine crevices.
Care during synthesis and purification means that off-odors, residual solvents, and color instability don’t occasional show up the way they do in mass-produced alternatives. Our technical team tests each batch’s particle size and water content, since even small variances can affect extrusion torque and finish. We stick to quality metrics tuned for polycarbonate and PC/ABS blends, since those dominate the customer base actually using this material at scale, not just talking about it at conferences.
Markets that choose this flame retardant often work under severe deadlines to qualify for global certification, compete with overseas producers, or replace halogenated systems in new designs. Past experience with generic brominated diphenyl ether products reveals that reliability, purity, and legacy of supply matter more than glossy brochures. In our plant, direct relationships with resin makers and molding shops, especially for consumer electronics and appliances, keep the focus on field performance.
Finished goods see the real test: thin-wall housings must hold up under glow-wire tests, pin flames, and real-world power surges, not simply pass a lab report. This compound, in use across high-stress injection molding and extrusion lines, generates smooth surface appearance and high clarity, even where color matching is needed for branded applications. Shops using inferior flame retardants often report yellowing or unpredictable burning behavior; batches from our lines control these risks, drawing on trials run with major OEMs in Asia and Europe.
Quality control teams, especially those operating on tight ISO standards, count on the predictability of each shipment. Our lab tracks the stability of polycarbonate blends down to the microstructure, since so many electrical customers depend on impact retention after flame retardant addition. Testing involves not just confirming bromine percentages, but freeze-thaw cycles, light aging, and humidity resistance. This ensures cables, cases, and circuit parts hold their shape and toughness even as requirements for miniaturization increase.
Experience on the shop floor makes a few truths clear. Some suppliers press through large amounts of generic brominated flame retardants and try to hit price points by skipping purification steps or reducing recrystallization time. Inconsistent color, chunky powder, or trace salts remain as evidence—resins pick up yellow or brown hues, or worse, plug up feed throats and cause stop/start issues during compounds or molding.
In our process, full traceability carries forward for every ton produced, starting at raw materials through to final testing and packing. Unlike most resellers, we control the bromination reaction, monitor for residual metal catalysts, and screen for unwanted by-products. The resulting particulate size matches tighter specs, so downstream processes run without need for excessive fine screening or mixing adjustments. End-users stop worrying about new certificate discrepancies on re-inspection, because the batch-to-batch record extends several years back—critical for customers facing legal, regulatory, and brand claims tied to product reliability.
The compound structure here offers extra steric stability—it resists migration and bleed into neighboring plastics, reducing surface tackiness in final components. Unlike older flame retardants based on diphenyl ether chemistry, this molecule doesn’t leach out after repeated heating and cooling cycles. Molders see the value in less corrosion of tooling, as the absence of acidic degradation by-products protects hot runners and screws over months of running. In contrast, less-stable flame retardants often shorten press life, with the cost hitting hard on smaller processors without easy access to spare parts or service.
Producing this brominated flame retardant demands close monitoring, from bromine sourcing and waste handling through crystallization and drying. Handling brominated organics carries regulatory and health requirements best met at a manufacturer’s facility—true, the people in our plant know how to avoid exposure, monitor air, and catch fugitive emissions. Capturing operator input speeds up changeovers and pinpoints issues before finished inventory leaves the gate.
Direct control of production ensures the quality stays high, but it also means we respond to customer feedback quickly. A customer in southern China pointed out a small issue with powder compaction after weeks in storage. By fine-tuning our drying and sieving cycles, we corrected the lot-to-lot variability within a single quarter. That kind of rapid feedback loop happens because the same people making the product talk directly to lab staff and logistics teams—no chain of middlemen, no lost emails, no multi-country delays.
On logistics and inventory, decades of running plant stockrooms taught us the importance of on-time loading and predictable scheduling. Getting a flame retardant late can shut down a compounding line, straining relationships and pushing back programs with end-users. Our team plans order cycles for both just-in-time shipments and regular restocking, since planning for seasonal sales peaks means higher-yielding operations and fewer shipping problems. Chemical production doesn’t stop for holidays, so neither does our tracking system—real time inventory checks backstop every commitment we make.
Working with flame retardants, especially those using brominated chemistry, means meeting increasingly tough rules for emissions, traceability, and disposal. Our plant processes and documentation follow both international frameworks and the stricter local laws put in place across the last decade. The design of our product takes into account post-consumer recycling for plastic components. Committed R&D teams keep an eye on global regulatory trends, making process or quality adjustments to match changes before they appear in government bulletins.
Competing products sometimes skip steps in manufacturing, letting trace amounts of persistent organic pollutants slip by—regulatory fines are not the only risk here. Downstream processors have to test for these substances, and cleaning up a contaminated supply chain can carry costs that dwarf any supposed savings of buying cheaper flame retardants. Our team checks for restricted brominated compounds, and commits to keeping PBBs and PBDEs out—not as a marketing claim, but as a matter of daily operating policy.
In-house waste management handles all mother liquor and bromine recovery, converting production residues to reusable or safely disposable forms. Factory audits, seconded by demanding multinational buyers, challenge our process documentation and safety measures—this is a technical, continuous improvement game where real-world results beat PowerPoint claims. Valuing safety, not just product quality, sets apart real manufacturers from fast-moving importers.
People handling flame retardants every day—machine operators, compounding supervisors, and warehouse staff—face safety challenges when loading, mixing, and cleaning. We pay attention to dust minimization at the granulation stage. Feedback showed that solving caking at elevated humidity made a significant difference in some export markets in Southeast Asia, where storage conditions often slip past ideal. By adjusting mean particle size and moisture control, the product runs through feeders and scales with less bridging and cleaner drops, supporting productivity and safer dust control measures.
Customers often ask about compatibility with the latest polycarbonate blends, especially as global resin grades keep changing. We routinely validate this flame retardant with PC, PC/ABS, and select polyesters targeted for business machines, automotive interior parts, and power tools. Each round of application testing checks that structural integrity, impact strength, and flow properties are maintained or improved, giving OEMs reassurance that they won’t see material rejections at the next round of audits.
Shop floor experience keeps stress on performance at real processing temperatures, moisture levels, and throughput rates, not just on paper properties. Technicians pay close attention to impact on final color, mechanical strength, and long-term part stability under expected use conditions—no one wins points if a plastic case performs well in the lab but warps after a few heat cycles out in the field.
Batch consistency from upstream suppliers often determines the smoothness and profitability of downstream molding and extrusion shops. One-off surprises—unexplained color shifts, clumping, or off-odors—hit raw materials teams the hardest, landing both troubleshooting headaches and possible product recalls. By using in-house quality controls that track down every potential instability, we keep customers out of that cycle.
Frequent communication builds trust that keeps contracts rolling year after year. A major cable jacketing converter explained that even just one missed or out-of-spec shipment forced them to scrap finished lots and run back into production overtime. Maintaining delivery reliability, with early warning for shipping or customs delays, keeps their schedules and ours intact. Plant managers tend to remember steady suppliers—especially after switching from cheaper flame retardants left uncontrolled halogen contamination or unpredictable behavior in compound final use tests.
General compounding lines often run several additives at once. Persistent testing on various twin-screw and single-screw extruder models helps make sure this flame retardant behaves as expected, with minimal screw buildup and normal torque loads. Batch cleanliness—getting free from metal or inorganic salt contaminants—reduces wear on parts and extends their life. Our compounders work to verify this in-house before any drums reach the customer plant, drawing directly on experience with frequent line changeovers and mixed resin recipes.
Chemical plants embed a culture of continuous improvement, based on production records, test runs, and direct feedback from processors. After years of interaction with processors scaling to global programs, changes in process control, filtration, and packaging have built a strong track record. Bringing in customer feedback—like improved lot labels for tracking, inner lining upgrades to prevent powder migration, and more robust palletization for export—shapes every part of the logistics and packing journey.
Extending beyond simply producing to spec, each round of audit and external certification backs the consistency of supply. With market dynamics sometimes shifting raw input sources, only a tightly run plant can avoid interruptions or quality downgrades that might wreck a critical compound order. Our staffing model puts experienced line operators and process chemists in close proximity, so small discrepancies in color, odor, or granulation don’t drift further down the value chain.
Direct-from-manufacturer channels let processors avoid problems common with resold or relabeled materials, such as foreign object contamination, eco-labeling gaps, and paperwork mismatches on inspection. Customers benefit from technical service teams willing to troubleshoot, sometimes on location, and initiate quality improvement cycles based on joint learnings. These long partnerships help secure repeat certification for finished goods, which becomes a major factor in winning and retaining contracts from major brands.
This commentary isn’t drawn from a slide deck or a product catalog—it follows from daily work in a chemical plant making flame retardants used globally. Quality, safety, and supply reliability drive decisions at each step. Whether serving processors turning out the next generation of appliances, business equipment, or automotive electronics, commitment to hands-on process control, open feedback, and regulatory compliance sets our production apart.
Every day, manufacturing teams look not only at what leaves the door, but how it performs at the customer site and beyond. The broader challenge in chemicals is not just meeting spec, but supporting customers under real production and market pressures. Backed by years of practical experience and direct customer engagement, we are proud that 2,2-Bis[3,5-dibromo-4-(2,3-dibromo-2-methylpropoxy)phenyl]propane continues to help partners build safer, more reliable, and more compliant products for markets worldwide.