|
HS Code |
162395 |
| Name | Phenol, 3,4-Dichloro- |
| Cas Number | 95-77-2 |
| Molecular Formula | C6H4Cl2O |
| Molecular Weight | 163.00 g/mol |
| Appearance | White to light tan crystalline solid |
| Melting Point | 42-45 °C |
| Boiling Point | 227-230 °C |
| Density | 1.48 g/cm3 |
| Solubility In Water | Slightly soluble |
| Flash Point | 110 °C |
| Synonyms | 3,4-Dichlorophenol |
| Pubchem Cid | 7287 |
As an accredited Phenol, 3,4-Dichloro- factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging is a 500 g amber glass bottle, tightly sealed, with hazard warnings and regulatory labels for 3,4-Dichlorophenol. |
| Shipping | **Shipping Description:** Phenol, 3,4-Dichloro- should be shipped in tightly sealed containers, protected from light and moisture. It is classified as a hazardous material (UN 2821) and requires labeling as a toxic solid, organic, n.o.s. (contains phenol derivative). Handle according to local, national, and international regulations for toxic chemicals. |
| Storage | **Phenol, 3,4-Dichloro-** should be stored in a cool, dry, and well-ventilated area away from sources of ignition and incompatible substances such as strong oxidizers and bases. Keep the container tightly closed and clearly labeled. Store in a corrosion-resistant container, protected from moisture and direct sunlight. Utilize secondary containment to prevent leaks and spills, and ensure access to emergency eyewash and showers. |
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Years on the floor with our reactors have taught us that the real measure of any chemical comes down to purity, consistency, and performance under pressure—literally and figuratively. 3,4-Dichlorophenol stands out in labs and production halls across specialty chemical manufacturing, crop protection intermediates, and polymer industries. The model we offer is refined through calibrated chlorination of phenol, yielding a crystalline solid known for tight melting and boiling points. Most demand tilts toward a product in the 99% purity range, meeting strict GC assay standards and staying clear of trace moisture or residual monochloro- or trichloro- impurities.
What’s important here isn’t just a set of technical values. Our own team understands that 3,4-Dichlorophenol hits the mark where other isomers lag. Compared with the 2,4- or 2,6- variants, the 3,4- isomer has reactivity that slots into reaction pathways cleanly, cutting down on byproduct formation and wasted feedstock. Each batch we pull is checked for a balance between low dioxin levels and high batch yield. For end users embedding dichlorinated aromatics in molecular frameworks—be it fungicides, biocidal compounds, or specialty resins—this purity hits right at the intersection of safe handling and cost-effective conversion.
Years in chemical manufacturing mean you develop a keen sense for which intermediate will save headaches later. The nature of 3,4-dichlorination, with its ortho-para selectivity, creates stubborn processing challenges. We realized early that tight control over reaction kinetics and temperature swings translates into higher finished purity. Raw phenol is charged into jacketed glass-lined reactors, and the chlorine gas flow is meticulously adjusted at every step. Cooling and moderate agitation prevent over-chlorination, keeping our dioxin levels consistently well below international hazard limits—a safety fact our downstream partners appreciate.
Our workers skillfully operate filtration and crystallization systems overseen by digital monitoring but still reliant on operator experience. Visual checks during recrystallization, hands-on sampling for titration, and repeated weighing have given us confidence batch over batch. This dedication makes the difference in how our 3,4-Dichlorophenol behaves during customer reactions—less sep funnel trouble, fewer chromatographic headaches, and lower waste disposal costs at the end of the shift.
From day one, we watched our 3,4-Dichlorophenol find its way into the hands of formulators and process chemists making herbicides, antiseptics, and pharmaceutical intermediates. Unlike the 2,4- dichlorophenol, which often skirts regulatory limits, the 3,4- variant persists as a go-to building block for certain active molecules that demand stability at elevated temperatures and resistance to oxidative degradation. In the realm of dye manufacture, that dual chloro setup confers a consistent chromophore response, leading to final hues that stay sharp and repeatable batch to batch.
Manufacturing staff remember troubleshooting a project with a major customer, a global agrochemical producer, when they swapped out a lower-grade dichlorophenol for our higher-purity 3,4- product and watched conversion rates tick upward. Longevity of finished goods on store shelves is no accident; it comes from consciously designing every technical step in the run—from nitrogen blanketing before drum filling to tamper-proof packaging that keeps airborne contaminants out.
3,4-Dichlorophenol is not the only player in the field, but its unique structural properties matter to folks on the line and in the lab. The electronic configuration of the 3,4- variant boosts reaction rates for certain nucleophilic substitutions, essential in pesticide and resin chemistry. Unlike the 2,4- isomer, which tends to have higher volatility and thus greater handling losses, the 3,4- version offers better process control during large-scale synthesis. Throughout decades of contract manufacturing, we saw reduced downtime due to fouling or unintended side reactions—both major drivers of factory yield and system uptime.
Several large-volume customers echo the same sentiment: they prefer our 3,4-Dichlorophenol because trace contaminants in either 2,4- or 2,6-isomers can sabotage a catalyst run or complicate post-reaction purification. Even minor differences in isomeric ratios have downstream consequences: longer clean-outs, more solvent cycles, and increased uncertainty during analytical testing. Adhering to strict specification compliance isn’t just red tape; it’s baked into our routine. The dichloro arrangement delivers lower acute toxicity profiles valuable in downstream formulations aiming for stringent workplace safety profiles, an aspect regulatory compliance offices increasingly prioritize.
True confidence in a raw material comes not from paperwork but from experience and trust in the hands that make it. Every drum of 3,4-Dichlorophenol leaving our site carries the results of our foul-air scrubbers and advanced chromatography checks. Ample bench tests and batch to batch consistency backs up those numbers. We invite third-party inspection when needed. On countless occasions, walking clients through our QC labs, showing vials from ongoing runs and printouts from GC columns, they see there’s no shortcut to maintaining tight control over chlorination, moisture, and organic impurity thresholds.
We run samples for heavy metals, color index, and check for the presence of any off-spec mono- or trichlorophenol. Because our own people use these batches on parallel lines or for next-step syntheses, bottlenecks caused by inconsistent dichloro content get noticed immediately and corrected without delay. Knowledge builds through years of troubleshooting: minimizing batch upsets, controlling temperature gradients, watching for pH drift in process washes. Documentation lines every stage, but there is always human accountability tied to every step—real names and real signatures.
Much can go wrong after a batch leaves the reactor. We engineered our storage and packaging routines based on many years of feedback from haulers, warehouse teams, and plant operators. This material shows limited but real volatility—so we pack it in high-integrity, sealed containers, purge with inert gas, and secure every drum with anti-tamper seals. Even with controlled volatility, 3,4-Dichlorophenol needs cool, dry storage to avoid agglomeration or accidental decomposition. Drum stencils match what’s in the batch analysis, and every shipment is traceable back to raw material intake.
Years ago, we upgraded storage to reduce cross-contamination risks. Segregated lines for chlorinated aromatics reduce exposure chances and make on-site audits easier. Every worker handling drums respects the strong odor and makes use of proper gloves and face shields. Routine safety drills and process hazard reviews keep everyone sharp. Responding to a customer who once flagged a tiny packaging flaw, we enhanced our inspection points to catch micro-leaks and made it routine to photograph every outbound pallet before shipment. That story spread on the line, increasing care with daily handling.
Handling chlorinated organics like 3,4-Dichlorophenol means facing the reality of environmental scrutiny. Persistent chlorinated compounds raise eyebrows at environmental bureaus and among community stakeholders. Our management set ambitious VOC emission reduction targets years before mandatory rules took hold, knowing that responsible manufacture aligns with community trust. Spent washes and process water get treated onsite with advanced chemical and bio-remediation systems. Air emissions are scrubbed and recorded, and every discharge undergoes periodic review from both in-house and, sometimes, external audit teams.
Supply partners want documented evidence of responsible manufacture—not empty promises. Over the years, several major buyers visited to conduct their own waste audits and observe drum filling and air sampling in real time. We’re proud of how many consecutive audits we’ve passed without serious findings. The process for producing 3,4-Dichlorophenol touches several compliance checkpoints. Persistent review by internal environmental health and safety staff ensures we keep dioxin formation within allowable levels, prevent fugitive losses through vapor control, and train staff regularly on responsible waste handling. Investing in containment infrastructure and regular data transparency pays out in uninterrupted operations and stronger long-term relationships with both buyers and neighbors.
Our team sees the impact of chemical safety at ground level every day. Chlorinated phenols do not forgive carelessness. Regular training keeps every operator, maintenance tech, and logistics handler up to date on current practices. Routine walkthroughs, mixing experience from seasoned specialists with input from newer team members, help spot small issues before they swell. Our standard PPE protocols—gloves, goggles, closed systems, and rapid decontamination supplies—aren’t just checkboxes but lived experience. We invite on-site safety experts from partners or regulators to share in walkthroughs and host drill exercises for chemical spill scenarios.
Every new crop of hires starts with hands-on shadowing and demonstrations by experienced staff. Our field techs share hard-earned knowledge about monitoring air quality around packaging lines and proper emergency response steps. In processing 3,4-Dichlorophenol, small details matter: ensuring lines are free from iron contamination, monitoring exhaust fans, and performing regular leak checks on transfer connections. It’s become standard practice to run through “what-if” scenarios in team huddles—what happens if a drum valve leaks, if a worker shows symptoms of exposure, if there’s a process deviation. This focus on safety, rooted in daily habit, has translated to high staff retention and steady, safe throughput.
Manufacturing any specialty chemical takes more than following yesterday’s formula. Team leaders run review cycles at the end of each production week, examining yield records and anomaly logs. Years back, our process control engineers developed improved cooling controls and reaction feed rates for phenol chlorination, cutting byproduct rates and smoothing out purity swings. Investments in new sensor technology and data trends brought new insight into early fault detection. Those feedback loops strengthen both our reliability and our value to customers. Not all process updates are high tech—sometimes an improved filter element or a minor agitator speed tweak brings outsized gains.
Feedback from technical service reps working with downstream processors keeps the cycle going. One customer switched from a competitor’s less refined 3,4-Dichlorophenol and immediately reported smoother blending in their next-stage condensation runs. Small technical wins—like quicker phase separation, reduced trace color formation, or simple packaging improvements—directly boost uptime and profits for everyone involved.
Our work reaches beyond the drum. Research partners tackling new pesticide molecules, resin modifiers, or biocidal formulations often call us for technical insight. We routinely share practical experience about solubility, reactivity, and storage challenges with R&D teams, helping our product fit more seamlessly into their development pipelines. One case stands out where our technical suggestions during early product trial phases enabled a crop science partner to move from bench scale to pilot plant faster. Our factory conducts sample studies and trial batch analyses for collaborators, often customizing batch sizes or specifications—never compromising on our baseline quality controls.
Shared problem-solving with longtime buyers led us to improved cleanup protocols and fine-tuned process conditions for challenging reactions. Whenever a challenge arises—unexpected color drift, a new impurity profile, or questions over shelf life—we’re ready to help troubleshoot. This open door philosophy keeps our partner network strong.
Through years of running chlorination units and listening to end-user stories, we know 3,4-Dichlorophenol is more than a commodity—it’s a compound that quietly does the hard work in complex syntheses across several industries. Those who work with this chemical know how much a stable supply and solid safety profile matter. There’s a story in every batch we run, and every technical update traces back to real challenges and real people. The result: a trusted ingredient that continues to shape specialty chemical, crop protection, and polymer sectors—backed by commitment, accountability, and plain hard work every day in the plant.