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Hexachlorocyclopentadiene

    • Product Name Hexachlorocyclopentadiene
    • Alias HEX
    • Einecs 204-079-2
    • 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

    894800

    Cas Number 77-47-4
    Iupac Name Hexachloro-1,3-cyclopentadiene
    Molecular Formula C5Cl6
    Molar Mass 272.77 g/mol
    Appearance Colorless to pale yellow oily liquid
    Boiling Point 239 °C
    Melting Point 3.5 °C
    Density 1.68 g/cm3 at 20 °C
    Solubility In Water Insoluble
    Vapor Pressure 0.02 mmHg at 25 °C

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

    Packing & Storage
    Packing Hexachlorocyclopentadiene is packaged in a 25-liter steel drum, securely sealed, with hazard labeling and UN identification clearly marked.
    Shipping Hexachlorocyclopentadiene should be shipped in tightly sealed, corrosion-resistant containers, clearly labeled and compliant with hazardous materials regulations. It must be transported as a toxic and environmentally hazardous substance, away from heat, acids, and incompatible materials. Shipping requires adherence to UN1991, Class 6.1 regulations, with proper documentation and emergency procedures in place.
    Storage Hexachlorocyclopentadiene should be stored in tightly sealed containers, in a cool, dry, and well-ventilated area away from direct sunlight, heat, and incompatible substances such as strong oxidizers and bases. Store under inert atmosphere if possible. Clearly label storage containers and keep them in a secure, chemical-resistant, and corrosion-proof storage area to prevent leaks or spills. Avoid open flames or ignition sources.
    Application of Hexachlorocyclopentadiene

    Applications of Hexachlorocyclopentadiene in Industrial Manufacturing

    Hexachlorocyclopentadiene (HCCP) serves as a vital intermediate in several key chemical manufacturing sectors. As a direct manufacturer, we support advanced downstream processes where product consistency, regulatory compliance, and process integration are critical. Below are in-depth application scenarios that reflect industry requirements and current market demands for HCCP.

    1. Agrochemical Synthesis for Pesticide Intermediates

    Major agrochemical companies utilize HCCP as a core intermediate in synthesizing organochlorine insecticides, specifically via Diels-Alder reactions for compounds such as endosulfan and chlordane (subject to regulatory status in export markets). Our technical teams supply HCCP with exacting chloride content, ensuring strict batch-to-batch consistency for complex cyclization steps. The product’s reactive profile allows direct integration into closed reactor systems to maintain operator safety and prevent undesirable byproducts, supporting precise conversion yields during the manufacture of active molecules crucial in protected crop applications.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticide Technical Materials
    • EU REACH Registration (EC No. 500-073-5)
    • EPA FIFRA Regulations for Industrial Chemical Handling
    • China GB 2763-2021 MRL for Pesticide Residues Control

    Typical usage ratio

    • 1.1–1.3 molar equivalents per Diels-Alder reaction, adjusted to chlorination efficiency and target molecule stoichiometry

    Downstream process integration

    • Charged at initial stage of cyclopentadiene chlorination and cyclization reactors
    • Managed under sealed and automated dosing systems for exothermic control
    • Feeds directly into post-chlorination workup and purification units

    Final product types

    • Technical grade endosulfan
    • Chlordane active ingredient
    • Heptachlor intermediates
    • Pest control concentrate formulations (legacy molecules, non-EU/US markets)

    2. Flame Retardant Additives Manufacturing (Chlorinated Hydrocarbons)

    Producers of flame retardant chemicals introduce HCCP in the synthesis of chlorinated cycloaliphatic flame retardant additives, with particular use in high-performance plastics and coatings. The process typically involves controlled co-polymerization and halogenation, where HCCP acts as a backbone modifier to increase char yield and inhibit flame propagation. Our consistent HCCP purity allows precise feedstock metering for multi-step chlorination and compounding, ensuring the finished additives meet stringent performance criteria in construction and electronics safety standards.

    Industry compliance standards

    • UL 94 Flammability Standard (Polymeric Materials)
    • RoHS Directive 2011/65/EU (with chlorinated hydrocarbons exemptions)
    • IEC 60695-11-10: Test Methods for Fire Hazard
    • ISO 1043-4: Plastics — Symbols and Abbreviations for Additives

    Typical usage ratio

    • 20–40% w/w of HCCP as a reactant in total monomer charge, depending on targeted halogen content and final polymer specifications

    Downstream process integration

    • Dosed as a primary monomer into sealed reactors for stepwise halogenation
    • Feeds resin compounding lines post-reactor to improve flame resistance in final blends
    • Enters directly in pelletizing or powderizing units for masterbatch applications

    Final product types

    • Chlorendic anhydride flame retardant compounds
    • Halogenated resins for PCB substrates
    • Fire-retardant plasticizer masterbatches
    • Specialty coatings for building materials

    3. Fine Chemical Synthesis: Specialty Reactive Intermediates

    Specialty chemical manufacturers rely on HCCP as an upstream precursor for multi-functional intermediates used in high-value applications such as lubricants, stabilizers, and advanced polymer modifications. HCCP’s high chlorine density and ring structure allow selective substitution and addition reactions, forming complex multi-chlorinated compounds under tightly regulated anhydrous conditions. Control over addition ratios and purity profiles enables cost-efficient batch or continuous operation, tailored to precise downstream synthesis requirements.

    Industry compliance standards

    • ISO 9001:2015 Certified Process Control
    • OECD Good Laboratory Practice (GLP) for Reaction Testing
    • REACH Registered for Use as Intermediate
    • UN Transport and Storage Requirements for Class 6.1 Toxics

    Typical usage ratio

    • Stoichiometry varies from 1:1 to 1:2 with downstream nucleophiles or electrophiles; adjusted depending on substitution target

    Downstream process integration

    • Introduced during chlorination or condensation stages
    • Fed via automated dosing to reactor systems under inert gas
    • Serves as a scaffold for further derivatization or as endcappers in polycondensation

    Final product types

    • Chlorinated aliphatic lubricant precursors
    • Polyvinyl chloride (PVC) thermal stabilizers
    • Intermediates for polymer cross-linkers
    • Additives for specialty rubbers and elastomers

    4. Manufacture of Chemical Intermediate for Pharmaceuticals (Not API)

    Within pharmaceutical chemical processing, HCCP finds strictly regulated application in the production of non-active intermediates, especially for chlorinated frameworks which are further functionalized in subsequent synthesis steps. HCCP’s high reactivity supports efficient ring-closure and step-growth reactions, making it suitable for pilot and commercial scale intermediate preparation under GMP-controlled transfer and storage. The rigorous monitoring of residuals ensures no direct carryover to active ingredient stages, aligning with global pharma regulations.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • 21 CFR Part 211: US cGMP for finished pharmaceuticals (as applicable for intermediates)
    • EMA Guidelines for Starting Material Control
    • Hazardous Materials Handling Regulations (local jurisdiction)

    Typical usage ratio

    • Efficiency optimized at 1–1.2 molar equivalents based on target skeleton; closely controlled to minimize downstream impurities

    Downstream process integration

    • Fed at early stage of multi-step organic synthesis chain
    • Serves as chlorinated ring precursor in closed-system reactors with validated containment
    • Strict QC sampling post-reaction for trace residual monitoring

    Final product types

    • Multi-chlorinated intermediates for subsequent API synthesis
    • Pharmaceutical intermediate blocks for custom synthesis houses
    • Protected building blocks shipped for additional downstream transformations
    • Registered starting materials per DMF/ASMF documentation
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    Certification & Compliance
    More Introduction

    Hexachlorocyclopentadiene: Experience-Driven Insights from the Factory Floor

    Real-World Production, Direct from the Source

    Producing Hexachlorocyclopentadiene every day in our chemical facility offers a front-row seat to the unique nature of this compound. Commonly called HCCP in the industry, the substance leaves a deep impression even before it leaves our reactors. With a dark green-yellow hue and a pungent odor, it commands instant recognition during every run. We don’t learn about the power of HCCP from a handbook—we see it each day as raw hexachlorobutadiene gas feeds in, and chlorination transforms the mix into an essential chemical intermediate. Unlike merely handling data sheets, we work with the real thing, adjusting flows, monitoring reactor exotherms, and checking purity after every distillation.

    Having run continuous HCCP batches for years, our personnel develop a feel for the product long before final sampling. From inspection of finished drums to the first whiff at the cooling lines, the smallest changes in color or viscosity speak volumes. These small cues alert our operators to tweaks needed for the next batch—to ensure customer needs meet strict industry demands. This knowledge doesn’t come from sitting behind a desk; it grows in the heat and noise beside the columns and condensers. Sticking to tight controls matters. Chasing variability wastes time and money and risks the product integrity our clients expect.

    Model and Technical Specs: A Refined Output for Chemical Synthesis

    We manufacture Hexachlorocyclopentadiene under a process honed through decades of chemist and engineer collaboration. Our industrial output maintains a typical purity above 99 percent by gas chromatography, with most batches achieving consistent results across thousands of kilograms. Customers recognize a stable boiling point around 239°C, and our regular spectroscopic checks keep aberrations off the shipping floor. Experienced handlers know how finicky the material can be—moisture or impurities disrupt the delicate balance, and even minor changes show up downstream.

    The factory team keeps a close watch on density and refractive index with every bulk run. We record a density close to 1.68 g/cm³, a figure shaped by equipment calibration and process flow. Not all HCCP on the market can claim such reproducibility, and the difference often traces straight back to the care in each reactor cycle. Chlorine handling stays tight—both for yield and to keep corrosive risk in check. As a result, our output carries a reputation for predictable reactivity, whether end users need it for specialty polymers or for high-value agrochemical production.

    Applications Shaped by Real Experience

    Lots of talk about chemical intermediates feels generic, but HCCP stands apart once you see it fuel core transformations in real plants. This compound acts as a strategic starting unit in synthesis of flame retardants, agricultural chemicals, and specialty polymers. Few intermediates cut a path across so many industries with the same reliability. We’ve watched custom-formulators return to HCCP, batch after batch, for everything from cyclodiene insecticides to advanced resins.

    There’s a direct link between our plant’s operational choices and each customer outcome. In flame retardant manufacture, for instance, our drums supply a base for high-performance additives that block ignition or slow fire spread—without the side reactions trace impurities might provoke. In the agrochemical sector, our partners use HCCP for targeted cyclodiene production, relying on its clean conversion and minimal byproduct profile. The polymer sector engineers value the molecule’s capacity for chlorinated backbone synthesis, which gives specialty plastics dimensional stability and chemical resistance. We stay aware that slipups in boiling range or contamination slide downstream; decades on the job teach you not to cut corners with a material this reactive.

    What Sets Our Hexachlorocyclopentadiene Apart

    All HCCP is not alike. Quality depends on production technique, operators’ judgment, and in-process controls. Over time, we’ve compared our lots to material from other manufacturers, and the differences show up most during large-volume polymerizations or high-stakes agricultural formulations. Side reactions during chlorination hurt overall yield if upstream controls slip. Some sources produce a broader boiling fraction, causing frustration in downstream stripping and raising the odds of equipment fouling. Not every supplier matches targeted purity over multiple pallets; we run statistical process control on real-world measurements, not just on paperwork.

    Our investment in on-site analytics has paid off. Regular GC-MS runs, full spectra checks, and on-the-ground operator sign-offs all feed into tighter distributions in finished product specs. Many customers comment on how clean our material leaves their reaction profiles. Anecdotes add up when clients who once tolerated stream instability elsewhere now see reliable outcomes batch after batch. It’s not just that our product passes transactional compliance; it delivers predictability in the heat of end-user reactors.

    Tough Challenges and How We Solve Them

    Manufacturing Hexachlorocyclopentadiene isn’t all plug-and-play; challenges arise at every step. Chlorination is highly exothermic, and small surges can cascade out of control if left unchecked. Decades at the plant have ingrained a culture of real-time monitoring—thermography, manual audits, and continuous feedback to process controllers. Our techs know to watch the color shift along condenser lines; too light signals a purity fault, too dark hints at overheating or impurity carryover.

    Handling waste streams poses another technical challenge. The same reactivity that makes HCCP useful demands serious containment and scrubbing. We invested in multi-level confinement, wet scrubbers, and continuous emission tracking, not because it’s easy but because it protects both worker health and site licensing. Years of incremental tweaks—seals, purge systems, vent layouts—reflect an understanding that theory only goes so far. By drawing lessons from each maintenance shutdown, we’ve cut vent losses and reduced off-spec disposal so that both environment and budget benefit.

    Trust Built Through Consistency

    Trust doesn’t start in the marketing office—it comes from plant floors, loading bays, and lab benches. Every HCCP delivery reflects hours of hands-on work: sampling, full analysis, and a willingness to halt production if we spot anything unusual. We put our process windows tighter than the standard, knowing from long experience that each shipment represents a supply chain domino effect. A small slip upstream makes for a large headache downstream.

    Customers in the flame retardant and agricultural markets look for more than a certificate of analysis; they follow the reputation earned through every drum delivered without incident. Years working alongside partner labs and in-house QA teams have built a thick stack of technical files—every adjustment logged, every process improvement tracked. HCCP brings complexity and risk. Answering customer questions doesn’t come from guesswork, but from solving real production puzzles and keeping records clear.

    Safety Takes Center Stage

    Safe HCCP production stretches far beyond the safety data sheet. Our crew has learned that complacency doesn’t pay; proper PPE and real-time gas monitoring keep incidents at bay. Nobody wants to deal with the cleanup from a leak, and the odor alone teaches a lesson after one sharp exposure. We invest in operator training and site engineering, not because it’s required but because we’ve seen what happens when someone tries to shave costs on containment.

    From chlorine unloading to the final barrel seal, every step brings real-world risk. You can only ignore tight procedure for so long before you pay in downtime or—worse—worker injury. We instituted strict checklists and regular drills. Investing in robust etch-resistant piping and backup neutralization systems keeps both people and product secure. Years of work show there’s no shortcut in this business.

    Listening to Feedback, Not Just Reading Specs

    Hexachlorocyclopentadiene manufacture isn’t a closed-door affair. The best improvements in our process have come from fielding customer complaints and suggestions. Sometimes a user calls about a small shift in performance on their end—we don’t dismiss these calls. Instead, we send techs to sample drums, walk the process, and interview line staff until the root cause emerges. Sometimes it’s a shipping issue, sometimes a tweak in reactor temperature. Listening carefully has more than once uncovered ways to raise production standards that no data sheet predicted.

    Sharing insights with peers also helps. Networking with other plants, reading technical bulletins, and sending staff to technical conferences turned up new separator technologies and process control advances. We stay current because today’s solution is always tomorrow’s baseline. In an industry where regulations move fast, collaboration means survival—even competitors have something to teach if you know how to listen.

    Differentiating Hexachlorocyclopentadiene from Similar Products

    Operators, formulators, and lab managers often compare Hexachlorocyclopentadiene to other chlorinated intermediates. From the plant perspective, these differences are not abstract. Compared to tetrachloroethylene or chlorendic anhydride, HCCP offers a distinct chlorination pattern and a five-membered ring backbone, which matters for downstream reactivity. Our observations show that alternative intermediates like hexachlorobutadiene lack some of the same ring reactivity that makes HCCP indispensable in specific synthesis pathways.

    This unique profile means certain flame retardants and agricultural actives simply don’t perform the same when cut from a different chemotype. We’ve seen new product development teams try switching to lower-cost substitutes, only to return to HCCP after unexpected failures during pilot runs. Years of plant records show which downstream reactions display selectivity for HCCP’s molecular architecture. Mixing in alternatives may lower material costs, but a spike in side reaction rates or instability quickly cancels the planned savings.

    Global Trends: Demand and Regulation Shape Our Operations

    External pressures keep every chemical manufacturer focused. Over the past decade, regulatory shifts in many countries have turned up scrutiny on persistent organic pollutants, including legacy cyclodiene pesticides. Our output remains pointed at legal applications, supporting flame retardant and polymer sectors, and compliance is non-negotiable—years of investing in traceability and closed-loop reporting make oversight much easier. In-house training includes thorough education on where our HCCP is headed, who the ultimate end users are, and why full transparency matters.

    Market trends impact day-to-day decisions. During years when flame retardant demand peaks, our planning team often sees orders ramp up right after new construction rules pass. The opposite happens if regulatory bans force formulators to shift chemistry away from chlorine-rich fire suppressants. We match supply to seasonal needs; our maintenance schedules flex to support regional spikes. It’s not theory—it’s responding day by day to what our customers face on the front lines of regulatory change.

    Sustainability: Lessons from the Production Line

    Talk about green chemistry often sounds disconnected in plants where chlorinated chemicals rule. But experience shows that small, steady changes in process engineering can yield more sustainable results. By implementing heat recovery, closed-loop water systems, and real-time emissions monitoring, waste and energy use have dropped over the years. Field experience tells us that such changes don’t just smooth compliance—they buffer the plant against input cost spikes and supply chain disruptions.

    Waste minimization grew out of front-line frustrations. After every shutdown, operators tracked which streams needed reprocessing or which purification steps caused excess residue. By installing selective condensers and improving separation, we turned many of those pain points into cost reductions. We don’t see sustainability as a buzzword. Our people work every day to keep both community expectations and business needs in balance.

    What We’ve Learned Along the Way

    Years of making Hexachlorocyclopentadiene—not just selling it—earns a distinctive knowledge set. Our teams have seen every hiccup, from unexpected boiling range shifts to container failures in extreme weather. Each incident, each lesson bleeds into every new drum, making today’s quality higher than last year’s. We carry these details into every customer conversation, technical exchange, and process review.

    That’s not just our perspective; it’s the collective learning of a workforce shaped by hands-on problem-solving. Recent years have reminded us that a chemical’s true value comes out at the interface where math, molecules, people, and machines meet. Production floor lessons keep our standards rising, and every improvement reflects the grind behind the scenes, day in and day out.

    Looking Ahead: Continuity and Change

    The Hexachlorocyclopentadiene world evolves with new regulations, customer demands, and technological improvements. Experience teaches that today’s best practices will look different a few years from now. Ongoing training, new hires with a fresh viewpoint, and constant root cause reviews help the operation stay not just compliant, but ahead. We upgrade automation platforms and modeling tools based on what real operating data tells us, not assumptions from afar.

    As industry cycles change, the foundation remains the same: careful production, transparent communication, and a willingness to own mistakes and successes alike. The result shows up in every container shipped, every technical call answered, and every safety audit passed without a hitch.

    The Manufactured Difference

    Chemical manufacturing sometimes gets painted as remote or impersonal. In fact, every drum of Hexachlorocyclopentadiene reflects close teamwork and institutional know-how. This compound doesn’t just roll off a line on its own. Operators, engineers, and chemists bring their judgment to each stage: from loading chlorine to final packaging, every decision shapes the final product. Consistency and quality in HCCP come from hands-on vigilance, daily records, and hundreds of conversations where experience drives action.

    Thanks to investments in robust process control and a culture of continual learning, we’ve watched our HCCP set a standard across industries that rely on high-reactivity chemistry. The differences between a good batch and a great one are rarely found in textbooks—they emerge on the shop floor, honed by the dedication of a crew that knows every nuance of their product. That experience carries into every customer relationship. We don’t just deliver a chemical; we share the reliability born of years behind the reactor, ensuring that every container sent out matches the promise we’ve built since the very first batch came off the line.