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1,3-Diethylbenzene

    • Product Name 1,3-Diethylbenzene
    • Alias m-Diethylbenzene
    • Einecs 202-485-8
    • 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

    364137

    name 1,3-Diethylbenzene
    chemical_formula C10H14
    molecular_weight 134.22 g/mol
    CAS_number 141-93-5
    appearance Colorless liquid
    boiling_point 181-183 °C
    melting_point -37 °C
    density 0.87 g/cm3
    refractive_index 1.487
    flash_point 62 °C
    solubility_in_water Insoluble
    odor Aromatic
    autoignition_temperature 480 °C

    As an accredited 1,3-Diethylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 1,3-Diethylbenzene is packaged in a 500 mL amber glass bottle with a tightly sealed cap, labeled with hazard warnings.
    Shipping 1,3-Diethylbenzene should be shipped in tightly sealed containers made of compatible materials, clearly labeled, and protected from physical damage. It must be transported according to relevant chemical safety regulations, away from heat, open flames, and oxidizing agents. Appropriate hazard documentation and emergency procedures must accompany the shipment for safe handling.
    Storage 1,3-Diethylbenzene should be stored in a tightly closed container in a cool, dry, and well-ventilated area away from heat, sparks, and open flames. It should be kept away from oxidizing agents, acids, and sources of ignition. Use approved flammable liquid storage cabinets and ensure proper grounding and bonding. Store at room temperature and avoid exposure to direct sunlight.
    Application of 1,3-Diethylbenzene

    Applications of 1,3-Diethylbenzene in Industrial Manufacturing

    1,3-Diethylbenzene serves as a specialized aromatic compound in multiple chemical processing sectors. As the direct producer, we supply high-purity grades for critical applications, meeting stringent technical requirements and global compliance standards. Below are focused downstream applications, with specific details on compliance, dosing, process usage, and finished product categories.

    1. Synthetic Lubricant Intermediate Production

    Manufacturers of synthetic lubricants use 1,3-Diethylbenzene as a key alkylbenzene precursor for advanced base stock synthesis. Its defined aromatic structure ensures predictable reactivity in alkylation and subsequent hydroprocessing routes. By facilitating precise molecular tailoring, this material supports lubricant formulations with controlled viscosity indices and enhanced thermal stability for severe service conditions. Blending takes place under tightly regulated temperature and hydrogenation parameters to yield base fluids for industrial and automotive uses.

    Industry compliance standards

    • ASTM D6074 (Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils)
    • REACH Regulation (EC) No 1907/2006
    • ISO 9001:2015 Quality Management for Process Controls

    Typical usage ratio

    • 5–12% by mass as the aromatic component in alkylation feedstock; ratio varies based on final viscosity and pour point requirements.

    Downstream process integration

    • Feeds directly into alkylation reactors with catalysts such as HF or solid acid at temperatures of 130–170°C, followed by hydrogenation stages.

    Final product types

    • Synthetic lubricant base oils
    • Hydraulic fluids for industrial machinery
    • PAO blendstocks for automotive lubricants
    • Compressor oils for refrigeration systems

    2. Agrochemical Solvent Synthesis

    Chemical synthesis plants utilize this raw material in the formulation of non-polar solvents, tailor-made for dissolving pyrethroid and organophosphorus agrochemical actives. The controlled aromaticity enables stable solubilization profiles essential in emulsifiable concentrate (EC) and suspension concentrate (SC) pesticide formulations. In-line blending operations apply rigorous solvent balance to maintain active ingredient stability and application safety.

    Industry compliance standards

    • FAO/WHO Pesticide Specifications (JMPS)
    • OECD Good Laboratory Practice (GLP)
    • ISO 9001:2015 for Agrochemical Manufacturing

    Typical usage ratio

    • 12–18% by mass of formulation as a carrier solvent, with precise ratios adjusted according to the solubility profile of the target active.

    Downstream process integration

    • Solvent introduction during the milling or high-shear mixing stage ahead of final bulk packaging; compatibility checks by HPLC analysis ensure formulation integrity.

    Final product types

    • Pesticide emulsifiable concentrates
    • Herbicide suspension concentrates
    • Fungicide flowable formulations
    • Adjuvant systems for crop protection

    3. Specialty Monomer Manufacturing for Polymers and Resins

    The chemical industry incorporates 1,3-Diethylbenzene as a structural intermediate in the synthesis of aromatic monomers for custom polymer and resin systems. Its integration yields modified monomer units with adjusted ring substitution, beneficial for tuning resin glass transition temperatures and chemical resistance. Polycondensation and copolymerization processes demand high purity to prevent chain termination or color instability in resins intended for automotive, electronics, and coatings markets.

    Industry compliance standards

    • ISO 14001:2015 Environmental Management
    • EN 71-3 (Safety of Toys — Migration of Certain Elements, applicable for certain specialty polymers)
    • GMP for Industrial Polymers (where applicable)

    Typical usage ratio

    • Ranging from 3–10% as a co-monomer or chain modifier, depending on polymer matrix compatibility and desired final property profile.

    Downstream process integration

    • Dispensed during the controlled monomer addition phase within a pressurized reactor, typically under inert nitrogen or argon atmosphere, with continuous monitoring for conversion rates and purity.

    Final product types

    • Specialty resins for automotive coatings
    • High-durability thermoplastics
    • PCB substrate materials
    • Modified alkyd resins for electronics and adhesives

    4. Chemical Process Solvent for Aromatic Separation

    Refineries and fine chemical operations depend on the unique solvation properties of alkyl substituted benzenes for selective extraction, particularly during aromatic hydrocarbon separation stages. 1,3-Diethylbenzene, due to its defined boiling range and aromatics partitioning ability, functions as an effective extractive solvent or as a diluent in azeotropic distillation. Inline process additions secure recovery efficiency, while automated purity verification follows established routine via gas chromatography.

    Industry compliance standards

    • API Recommended Practice 941 (Steels for Hydrogen Service at Elevated Temperatures and Pressures)
    • ISO 17025:2017 (Testing and Calibration Laboratories)
    • REACH Substances of Very High Concern (SVHC) compliance

    Typical usage ratio

    • Usage concentrations from 4–9% relative to feed volume, optimized for target separation efficiency between C7–C10 aromatic streams.

    Downstream process integration

    • Injected at the solvent extraction stage within multi-stage distillation or liquid–liquid extraction units. Recovered via downstream fractionation for reuse or purification.

    Final product types

    • High-purity benzene derivatives
    • Toluene and xylenes for chemical synthesis
    • Refined hydrocarbon intermediates
    • Solvent system regeneration streams

    5. Additive in Fuel Component Blending

    The petrochemical sector applies 1,3-Diethylbenzene in specialized gasoline and high-octane blend stock formulations. It raises the aromatic content and assists in reaching desired combustion and volatility profiles for performance-based fuels. Blending occurs at terminal and refinery racks, with stringent physicochemical checks including octane index, vapor pressure, and total aromatic content, directly impacting regulatory reporting and taxable fuel compositions.

    Industry compliance standards

    • ASTM D4814 (Standard Specification for Automotive Spark-Ignition Engine Fuel)
    • EU Directive 2009/30/EC (Quality of petrol and diesel fuels)
    • EN 228:2012 (Automotive fuels — Unleaded petrol)

    Typical usage ratio

    • 1–3% addition by volume in blend stock; adjusted based on required aromatic and octane targets versus regulatory aromatic limits.

    Downstream process integration

    • Added to base gasoline or reformate streams prior to final mechanical mixing, with continuous blending via flow metering and inline quality analysis.

    Final product types

    • Performance-grade gasoline
    • Specialty racing fuels
    • Octane enhancement additives
    • Marine gasoline blends
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    Certification & Compliance
    More Introduction

    Introducing 1,3-Diethylbenzene: Consistent Quality Backed by Practical Experience

    The Role of 1,3-Diethylbenzene in Chemical Manufacturing

    From a manufacturer’s viewpoint, the appeal of 1,3-Diethylbenzene lies in its simple structure and stable aromatic ring, yet it brings dependable functionality to many downstream applications. A clear liquid at ambient conditions, 1,3-Diethylbenzene works especially well as an intermediate for synthesizing specialty chemicals. Chemical plants value it for its manageable boiling point and high purity, both crucial for reproducibility in catalyzed reactions and downstream product consistency.

    Our Production Models and Specifications

    We base our output on years of incremental process adjustments, always guided by hands-on pilot plant trials and commercial feedback. Our most widely requested output features a minimum purity of 99.5%, confirmed by gas chromatography, and low moisture content. These attributes smooth out potential hiccups in alkylation processes and help avoid unwanted byproducts down the reaction chain. Each production lot undergoes real-time quality checks, ensuring lot-to-lot reliability throughout the year. We store this product in sealed drums or tankers, taking care to minimize moisture and oxygen ingress, as trace contaminants can affect not just our product but also your final process yields.

    Distinctive Properties Compared with Other Benzene Derivatives

    Those new to aromatic chemistry might confuse 1,3-Diethylbenzene with its isomers or related alkylbenzenes, so field experience offers some needed clarity. Unlike its 1,2- or 1,4-isomers, the 1,3-structure naturally resists side reactions in certain Friedel–Crafts routes. This selectivity pays off in specialty resin and surfactant production, especially when strict control over meta substitution is required. We’ve found that this compound’s volatility profile and lower odor threshold can be advantageous for large-scale operations, where minimizing fugitive emissions improves workplace comfort and downstream handling.

    In mixing trials, our technical team observed improved handling using 1,3-Diethylbenzene compared with heavier or branched alkylbenzenes. The linear diethyl groups at the 1 and 3 positions strike a sweet spot: high enough molecular weight for targeted end-use reactions, but not so large as to disrupt process economics or equipment run times. Physical stability during storage remains solid, with low susceptibility to polymerization or tar formation under standard conditions—something less true for more highly substituted aromatics.

    Practical Considerations During Scale-Up and Use

    Process engineers in our facilities often mention how 1,3-Diethylbenzene shortens reaction times in certain alkylation and acylation protocols. The high chemical stability means our tanks see less fouling and require fewer cleanouts. In fact, during a recent batch campaign, the head operator reported that switching from a branched-alkyl benzene stream to 1,3-Diethylbenzene eliminated a recurring buildup problem in the condenser return line. These kinds of stories become routine as one adapts plant operations to leverage this molecule’s cleaner vaporization and even heat transfer properties.

    Another point our site teams raise concerns safety and environmental factors. The modest vapor pressure at operating temperatures enables better control in vapor treatment sections, allowing for improved capture in carbon bed or scrubber systems. On a comparative basis, experience reveals lower incidents of detectable emissions than with lower-boiling monalkylbenzenes. Several of our plant managers have noted reduced odor complaints from neighboring areas during maintenance shutdowns, underlining benefits not always captured in a standard spec sheet.

    Application in Synthesis: From Intermediates to End Products

    Several customer partnerships began with the search for a more reliable intermediate in surfactant and resin synthesis. The key lies in the metapositional substitution: 1,3-Diethylbenzene feeds directly into the production of meta-oriented dihydroxybenzenes or functionalized piperazines, crucial building blocks in epoxide curing agents and complexation resins. Plant trials show that a starting material with fewer impurities translates to fewer filtration steps after sulfonation or alkoxylation. These time savings avoid bottlenecks, especially during peak project cycles in the specialty chemical sector.

    Pharmaceutical intermediates derived from 1,3-Diethylbenzene exhibit improved batch-to-batch traceability due to this product’s defined aromaticity and lack of interfering byproducts. Our analytical chemists routinely run cross-verification with established standards to monitor unintended substitution—a nontrivial concern in custom synthesis projects. The molecule’s chemical resilience stands up to strong reagent environments, from mild oxidations to rigorous chlorinations.

    Downstream users in electronic materials rely on absolute purity. We answer their needs by ensuring metal and halide residues never exceed strict threshold levels, verified by spark analysis and ion chromatography. During multi-year supply contracts, our feedback loop with end-users prompts us to fine-tune distillation and filtration steps, improving the clarity and free-flowing character of each batch.

    Operational Realities: Managing Resources and Waste

    In chemical manufacturing, efficiency means more than numbers. Our operators have found that using 1,3-Diethylbenzene as a base stock fits seamlessly in continuous feeds without introducing unnecessary solvent loads. On the plant floor, minimal waste arises from line purges, and reclaiming off-spec material needs less energy-intensive separation than bulkier, less volatile aromatic cuts. We direct recovered material into internal energy streams, closing material loops that save fuel and reduce greenhouse gas footprints.

    With certain benzene derivatives, residual compounds in tank bottoms can complicate cleaning protocols and disposal permits. With 1,3-Diethylbenzene, its lower reactivity under common plant conditions leads to fewer persistent residues and less hazardous waste classification. Lab analysis confirms a lower incidence of problematic impurities like persistent halogenated tars, which aligns with compliance needs and lowers the burden on our wastewater system.

    How Our Chemical Workers Handle Large-Scale Runs

    Getting a material from process vessel to packaging line without quality drift depends upon stable chemical properties and consistent supplier know-how. Based on many large-scale campaigns, our operators appreciate the lower risks of foaming and pressure surges with 1,3-Diethylbenzene, especially compared to isopropylbenzene or more heavily branched cousins. Recipe adjustment happens less frequently, sparing downtime and reducing manual interventions, which translates to better safety statistics—and happier plant teams.

    Many newcomers to chemical processing underestimate the importance of thermal stability for intermediate aromatics. Our real-world experience proves 1,3-Diethylbenzene holds up under extended heating cycles without forming gums or tarry deposits. This payoff accumulates over time: pumps run cleaner, transfer lines see fewer blockages, and reaction yields stay high over long campaigns. In tightly scheduled projects, the reliability this brings supports on-time deliveries for our partners, avoiding those late-night troubleshooting sessions that can derail entire operations.

    Comparative Reflections with Other Alkylbenzenes

    Our plant teams have worked hands-on with 1,2-, 1,3-, and 1,4-Diethylbenzene, as well as with monoethyl and more complex alkylbenzenes. The differences aren’t theoretical. In one project, we ran parallel syntheses using both 1,2- and 1,3-Diethylbenzene as starting materials for a sulfone resin. The 1,3-isomer gave a cleaner product with faster filtration and higher product brightness, which became apparent over several production runs. Lab tests supported this by showing better solubility of the 1,3-based intermediates, which led to easier handling in solvent recovery operations and helped control costs.

    Experiments in our pilot reactors demonstrate that higher branched or heavier alkylated benzenes extend batch durations, leading to bottlenecks downstream. The two-diethyl groups spaced meta to each other allow 1,3-Diethylbenzene to serve as a more predictable processing partner, especially where high-throughput is vital and side reactions inflate byproduct management expenses. Unlike heavier alkylbenzenes, this molecule doesn’t tend to build up in scrubbers or strainers, saving our maintenance team significant effort.

    Insights on Market Responsiveness and Global Supply

    As a manufacturing operation with decades behind us, we’ve seen feedstock trends shift alongside global energy dynamics and supply chain disruptions. 1,3-Diethylbenzene production hinges on reliable access to high-purity ethylating agents and benzene of adequate clarity. Our raw material procurement group works closely with regional cracker and reformer operators, building a steady supply chain over the years. This stability means reliable shipments to customers even when logistics elsewhere face storms, interruptions, or transport backlogs.

    Demand for this compound rises in sync with specialty chemical and pharmaceutical sectors, and our continuous feedback with end-users gives us a practical sense of how needs shift. Requests for finer purity cuts, lower residuals, and fine-tuned physical properties drive improvements in our distillation and QC protocols. Whenever a customer faces a technical hurdle, our technical teams dig into plant records and root-cause investigations, leveraging not just theory but lived experience with this product. This collaborative loop steers us toward upgrades that outlast short-term market fads and cement reliability for the long run.

    Meeting Regulatory and Quality Challenges

    Direct engagement with regulatory changes—such as stricter aromatic emissions caps or limits on PAH (polycyclic aromatic hydrocarbons)—has shaped our production approach. Our product’s straightforward structure means inherent advantages in meeting VOC regulations compared to more complex or oily alkylbenzenes. Continuous monitoring and updating of process controls ensure that each lot aligns with applicable industry standards and customer audit requirements.

    Our quality management team runs both scheduled and random stress tests on each batch, not just in analytic labs but at the interface with actual end-use conditions. Lessons learned during these tests feed straight back to plant level: unexpected product haze, for example, prompted us to recalibrate our dewatering step, yielding a visibly brighter and more stable product. Compliance and practical troubleshooting remain two sides of the same coin, and our approach favors catching and fixing issues before our drums even leave the loading bay.

    Making a Difference in Downstream Value Chains

    Aromatic intermediates like 1,3-Diethylbenzene power the backbone of many innovation cycles. In polymer science, plant-based coatings, surfactants, and specialty rubbers, process dependability begins with every drum or tank load we prepare. Customers from water treatment to crop protection have leveraged 1,3-Diethylbenzene’s balances of volatility, purity, and reactivity to sharpen their own formulations, guided by the lessons our technical teams share from their own scaling experiences.

    During the last round of customer consultations, a partner in the specialty adhesives sector described how switching to our product simplified their decolorization step, cutting time from hours down to under thirty minutes. End-use success stories like this echo what we see in our own plants—problems shrink when the input material arrives as specified, every time, and the history of its handling is readily available upon request. Having transparency and technical backup builds trust up and down the value chain.

    Looking Ahead: Continuous Improvement Built on Experience

    Maintaining high standards with 1,3-Diethylbenzene requires both investment in physical assets and consistent process awareness. Our operators and chemists come forward with operational ideas based on daily line walks and feedback from past campaigns. Small changes add up: modified condenser settings reduced volume losses, and investment in line insulation improved transfer efficiency on colder days.

    The lesson is clear to us as manufacturers: reliability in chemical supply means listening closely to both your own plant and the feedback coming in from the field. 1,3-Diethylbenzene has earned its place in our product roster not by default, but because it repeatedly solves real-world problems in cost, process time, waste reduction, and technical quality. For each downstream user, the right starting material can make or break a campaign; in our factory, care in producing, storing, and shipping this product pays off across countless industries.

    Through every step—from sourcing and synthesis to bulk delivery—we keep a close eye on details that matter to those using 1,3-Diethylbenzene on a daily basis. Practical knowledge flows in both directions: guidance from customers informs our continuous improvement, while our on-the-ground insights support partner troubleshooting and new product launches. 1,3-Diethylbenzene stands out from the crowd not just by spec sheet metrics, but by a track record built up over thousands of tons and hundreds of successful campaigns, underlining the value real-world experience continues to hold in chemical manufacturing.