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HS Code |
661856 |
| CAS_Number | 135-01-3 |
| Molecular_Formula | C10H14 |
| Molar_Mass | 134.22 g/mol |
| IUPAC_Name | 1,2-Diethylbenzene |
| Boiling_Point | 184-186 °C |
| Melting_Point | -25 °C |
| Density | 0.867 g/cm³ |
| Appearance | Colorless liquid |
| Solubility_in_Water | Insoluble |
| Flash_Point | 60 °C |
| Refractive_Index | 1.493 |
| Vapor_Pressure | 0.46 mmHg (25 °C) |
As an accredited 1,2-Diethylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1,2-Diethylbenzene, 500 mL, supplied in a sealed amber glass bottle with tamper-evident cap and hazard labeling. |
| Shipping | 1,2-Diethylbenzene should be shipped in tightly sealed, corrosion-resistant containers, clearly labeled as a flammable liquid. It must be transported according to local and international hazardous material regulations, away from strong oxidizers and sources of ignition, with proper documentation. Ensure ventilation and spill containment measures are in place during shipping. |
| Storage | 1,2-Diethylbenzene should be stored in a tightly closed, clearly labeled container in a cool, dry, well-ventilated area, away from sources of ignition and incompatible materials such as strong oxidizing agents. Protect from direct sunlight and moisture. Store at room temperature and ensure proper grounding and bonding during transfer to prevent static discharge. Use appropriate chemical-resistant containers and secondary containment. |
Applications of 1,2-Diethylbenzene in Industrial ManufacturingAs the original producer of 1,2-Diethylbenzene, we serve key industrial manufacturers across several distinct sectors. The following applications outline specific downstream use cases based on real market demand and established technical practice. 1. Raw Material for Ethylated Aromatic Solvents in Paints and CoatingsMajor paint and coating manufacturers utilize 1,2-Diethylbenzene as a core aromatic solvent intermediate for advanced solvent blends. Its chemical stability and moderate evaporation rate contribute to improved leveling and brushability in alkyd and acrylic systems. Producers formulate solvent-borne coatings using distinct ratios, optimized according to viscosity and drying characteristics demanded by regional climate and application methods. Industry compliance standards
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2. Intermediate in Synthetic Lubricant Additive ManufacturingAdditive suppliers employ 1,2-Diethylbenzene as a building block in alkylated aromatic lubricants and as an alkylation agent for advanced antioxidant formulations. Through controlled alkylation, companies achieve high-temperature stability and improved oxidative resistance, essential for turbine and compressor oil additives. Industry compliance standards
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3. Precursor for Specialty Monomers in Polymer ProductionAdvanced polymer manufacturers select 1,2-Diethylbenzene as a key monomer precursor when producing specialty resins, including high-gloss thermoset polymers and high-Tg polyesters. Through selective oxidation and subsequent functionalization, formulators balance reactivity and thermal properties for use in challenging environments. Industry compliance standards
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4. Base Material for Custom Fragrance Intermediates in the Aroma Chemicals SectorAroma chemical manufacturers convert 1,2-Diethylbenzene into alkylated aromatic intermediates, which serve as starting points for musky and woody fragrance notes. Controlled alkylation processes produce unique molecular structures required for mid- to high-end perfumery and industrial air freshener compounds. Industry compliance standards
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5. Chemical Intermediate in Catalytic Hydrogenation Processes for Fuel Additive ManufacturingFuel additive suppliers use 1,2-Diethylbenzene in catalytic hydrogenation to generate saturated hydrocarbons with clean-burning properties. These finished intermediates, incorporated as octane enhancers and cleaning agents, undergo strict batch quality control and compositional analysis to meet global automotive standards. Industry compliance standards
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At our facility, every kilo of 1,2-Diethylbenzene that leaves the floor reflects the decades we’ve spent perfecting aromatic processing. This chemical stands out not just by its position on a spec sheet, but because we know exactly what reliable performance and purity mean to customers handling fine chemicals, specialty lubricants, or crafting advanced materials. Our engineering team controls the synthesis from feedstock to finished drum, applying strict quality checks and traceability at each stage. It’s more than filling an order—it’s about upholding trust that comes from technical diligence and firsthand knowledge on how a batch should behave.
In the world of substituted benzenes, 1,2-Diethylbenzene fills a specific niche. It does not pretend to be the most versatile molecule—nothing in chemistry exists to play every role. What it offers is its stable aromatic core, modified with two ethyl groups in the ortho position, or “1,2-“ on the ring. This structure produces a liquid that blends well with hydrocarbon systems, especially where increased boiling point or tailored reactivity provide an advantage. The bulk of its demand comes from chemical synthesis, whether as a solvent, intermediate, or in specialty resin development. Trusted as part of the matrix for high-boiling solvents, it finds use in custom lubricants and as a building block for certain polymer additives.
Our product consistently meets strict assay criteria, not because we chase standard numbers, but from hands-on refinement of our purification train. We routinely achieve purity well above 99%, with close attention given to residual monoethylbenzene and other isomeric impurities. The product rolls out stable, colorless to very pale yellow, with a faint aromatic scent typical of clean ethylbenzenes. Moisture content, acidity, and residue after evaporation—each gets tracked batch after batch. If specification slips, it doesn’t ship. The packaging—drums or isotanks—reflects both bulk industry needs and careful attention to contamination avoidance.
Lab staff and partner formulators often call out the way 1,2-Diethylbenzene behaves in solution, noting its smooth miscibility with aliphatic and other aromatic hydrocarbons. These characteristics become especially important in blending custom lubricants for high-temperature environments, where volatility or breakdown can spell disaster for equipment. It has helped R&D teams extend the operating range of solvent blends, while also testing as a carrier in specific agrochemical formulations. In resins work, those extra ethyl groups can deliver a balance between flexibility and chemical stability that toluene or xylene-based systems cannot always reach. There’s a difference between reading about these features and seeing them at scale; we have processed tons of the material for global customers, adapting our methods based on direct field feedback and internal batch analysis.
Chemically, 1,2-Diethylbenzene sits closer to the heavier end of the ethylbenzene spectrum. Compared to its 1,3- and 1,4- isomers (meta and para forms), the ortho (1,2-) configuration leads to a slightly higher boiling point and certain differences in physical handling. Customers dealing with 1,2-Diethylbenzene easily notice that it survives higher temperature processes where regular ethylbenzene could flash off or degrade. The close-positioned ethyl groups deliver a unique physical profile—a feature which formulators turn to when standard xylene or combination xylenes come up short for viscosity or solvency range.
Some clients first approach us thinking all diethylbenzenes can substitute for one another. The reality hits in the formulation lab. Differences in freezing point, volatility, and even isomeric odor profile may lead to an entirely different product experience. 1,2- brings distinct solvency for certain polar and nonpolar additives. Our plant teams track isomeric ratios and help ensure that cross-contamination stays low. Misuse of isomers creates unexpected results, and correcting a mistake once a formulation goes to scale can cost more than selecting precisely in the beginning. This is where our background as manufacturers—not resellers—becomes clear: mistakes upstream save time and money downstream.
Bulk aromatics have seen fluctuating feedstock prices and tightening regulatory controls on impurity levels. Crude feed quality today is far from what we were analyzing twenty years back. Achieving the consistent profile required by high-purity markets means heavy investment in fractionation columns, upgraded hydrogenation facilities, and inline analyzers that never sleep. Customers in polymer or specialty electronics ask for fine control—impurities under 500 ppm, consistent melting points—for downstream process stability. No manufacturer can cut corners without risking an entire lot being rejected. We train technicians to spot issues long before they end up in customer tanks, running pilot reactions, and stress-testing reactivity in real-life scenarios, not just with textbook-grade solvents in a glass flask.
Researchers often challenge us to push tighter on purity or tweak physical parameters like refractive index and residue content. We answer these calls not with generic product data, but by inviting partners onsite to watch final fractional distillation steps or review archival batch run data. Recently, a customer developing heat-resistant polymers needed material free from trace sulfur and residual alkylbenzenes, at a scale large enough to stress even industrial synthesis lines. We worked batch by batch, drawing from older distillation routes and adapting them with new column packing. The result enabled years of high-performance coatings. Stories like this clarify that chemistry is rarely solved by specification sheets or catalog numbers—it requires communication and hands-on troubleshooting between production, QC, and the end application lab.
Those pursuing pharmaceutical intermediates or custom fine chemicals often bring us unique targets. Certain reactions demand not just the right isomer, but minimum water content and strict color cutoffs. Even micro quantities of oxygenated impurities trip costly downstream hydrogenations or metal-catalyzed couplings. Our analytical lab tunes GC, NMR, and trace element scrutiny, and tweaks packaging protocols to minimize air exposure or leaching from drums. A focus on the chemistry—down to storage conditions—improves yield and reliability for everyone using our diethylbenzene as a core material.
In the past, waste minimization and emission reductions sat on the periphery of aromatic chemical production. Today, responsible sourcing, recycle streams, and tighter emission controls shape every process adjustment we make. Solvent recovery and fraction recycle circuits have grown more advanced; what once counted as loss, now goes through secondary columns or gets sold as compliant solvent blends. Our plant reuses process steam and leverages closed-loop cooling, making energy management routine in daily batch operations.
Environmental mandates, whether domestic or export-driven, put focus on the limits for benzene, toluene, and other potentially hazardous volatiles in co-produced streams. Internally, we aim for not just compliance with evolving limits, but for pragmatic transparency with clients. Sharing traceability reports and batch-level data supports confidence all the way down the supply chain. The drive for sustainability challenges us to rethink waste, keep safety at the forefront during handling, and treat by-products with care—storing, testing, and disposing according to strict codes.
Anyone who has spent years overseeing chemical flows from reactor to drum knows the supply realties better than trading houses promise. Swings in feedstock supply, global logistics disruptions, or plant maintenance—all of these affect availability for downstream formulators. Our job is to anticipate these cycles, stockpile raw materials, and invest in parallel production lines to avoid bottlenecks. Our site teams train year-round to troubleshoot, whether a condenser fouls or a batch alarm rings at 3am. Keeping lines humming means better timelines and smarter logistics, something distributors rarely see up close.
We support customer forecasting, flagging any risk to deliveries early, and working on alternative solutions such as flexible tonnage or adjusted packing formats. An open channel—from operator’s bench to end-user’s plant floor—keeps both sides agile. Delivering 1,2-Diethylbenzene at the quality and timing customers depend on isn’t just transactional to us; it’s our daily measure of professional pride.
Every plant safety meeting covers aromatics. 1,2-Diethylbenzene poses typical flammability and vapor exposure risks of its chemical family, but the way a manufacturer approaches risk management draws a clear line for customers and crew. Physical handling protocols—real, not just theoretical—matter: From double-sealed drum valves to inert gas blanketing during transfer, plant teams develop habits that extend to customer advice and operation support. Experienced handlers know that despite low acute toxicity, a proper fume hood and tight drum seals protect both the material and the people around it.
Emergency response training, spill drills, and ongoing review of safety data sheets turn compliance from a box-ticking exercise into a core part of our manufacturing DNA. We track solvent exposure logs and conduct regular reviews of site-specific risk, passing on practical tips when commissioning new tanks or custom blenders for customer projects. All this stems from generations of production practice—not sales brochures.
Retailers and trading houses can email cut-and-paste spec sheets; that’s not our approach. Technical representatives—many of whom started on the plant floor—make themselves available to answer direct queries, review lot analysis, or arrange site visits. Customers appreciate seeing the actual production steps, talking to quality assurance supervisors, and understanding how a material’s trace impurity profile or isomer content impacts their specific process. We keep archives of vintage batch data for comparison, helping process engineers correlate trends or troubleshoot unusual color or odor shifts.
New application areas for 1,2-Diethylbenzene keep emerging. Battery developers, specialty resin manufacturers, and those working in advanced lubricants push us with tighter performance requests and unique combinations of specs. By combining up-to-date lab practice with field reports, our product evolves along with customer needs. Our plant serves as both production site and living R&D environment—where feedback loops result in practical innovations, not just documentation updates.
We stay engaged with technical conferences and consortia to keep abreast of how global trends in solvents, resins and performance materials drive real changes in demand and specification requirements. When regulatory changes or novel performance benchmarks emerge, we work side by side with partner labs to trial alternative processing steps, adapt to new purity demands, and shorten the time from request to scale-up. Unlike those chasing quick market trends, we draw from years of process-based familiarity with 1,2-Diethylbenzene—adapting processes and training staff to keep problem-solving at the core of what we deliver.
For customers who rely on 1,2-Diethylbenzene, the difference in supply is more than price or list specifications. It’s about the collective experience—raw material selection, plant scale handling, and direct team support—that only a manufacturer can provide. We have supplied this material for decades, tracking each lot with care, solving real-world technical puzzles, and standing behind every shipment. As chemical manufacturing evolves, we keep quality and reliability as our touchstones, offering a material that delivers not only on specification but on the confidence that comes from knowing exactly where—and how—it was made.