Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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1,3-Xylene

    • Product Name 1,3-Xylene
    • Alias m-Xylene
    • Einecs 202-422-2
    • 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

    292113

    CAS Number 108-38-3
    Molecular Formula C8H10
    Molecular Weight 106.17 g/mol
    IUPAC Name 1,3-dimethylbenzene
    Appearance Colorless liquid
    Odor Aromatic
    Boiling Point 139°C (282°F)
    Melting Point -47.87°C (-54.17°F)
    Density 0.86 g/cm³ at 20°C
    Solubility in Water Insoluble
    Flash Point 25°C (77°F)
    Vapor Pressure 8.5 mmHg at 25°C
    Autoignition Temperature 527°C (981°F)
    Refractive Index 1.497 at 20°C
    Viscosity 0.67 cP at 20°C

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

    Packing & Storage
    Packing 1,3-Xylene is packaged in a 20-liter blue HDPE drum with a secure screw cap, labeled with hazard and handling information.
    Shipping 1,3-Xylene is shipped as a flammable liquid under UN1307. It should be transported in tightly sealed, appropriately labeled containers, away from sources of ignition, heat, and oxidizers. Shipping must comply with regulations such as DOT, IMDG, and IATA, ensuring ventilation and spill containment during transit to prevent fire or exposure risks.
    Storage 1,3-Xylene should be stored in a tightly closed, clearly labeled container in a cool, dry, and well-ventilated area away from sources of ignition, heat, and incompatible substances such as oxidizers. Store it in a flammable liquids storage cabinet if possible. Protect from direct sunlight and moisture. Ensure containers are grounded and use proper precautions to avoid static discharge.
    Application of 1,3-Xylene

    Applications of 1,3-Xylene in Industrial Manufacturing

    As an experienced producer of 1,3-Xylene, we directly supply downstream manufacturers who depend on reliable, specification-controlled inputs for their critical production processes. The following section details real, high-volume application scenarios where 1,3-Xylene plays an integral, technical, and compliance-driven role. Each scenario reflects the expectations of advanced industry users focused on operational efficiency, regulatory consistency, and end-product performance.

    1. Isophthalic Acid (IPA) Synthesis for PET Resin Production

    Polyethylene terephthalate (PET) resin manufacturers utilize 1,3-Xylene as a core feedstock for oxidizing to isophthalic acid. The purity of 1,3-Xylene directly impacts the yield and color of the IPA and, subsequently, the clarity and strength of the final PET resins. This application requires continuous flow oxidation lines operated under oxygen with controlled catalyst loads and temperature stability to maintain downstream batch-to-batch consistency for PET films, bottles, and high-performance plastics.

    Industry compliance standards

    • ISO 9001:2015 (Quality Management for Chemical Feedstocks)
    • REACH Annex XVII, EU Regulation (for aromatic dicarboxylic acid intermediates)
    • FDA 21 CFR 177.1630 (for PET in food contact applications, U.S. only)
    • GB/T 13509-2017 (China National Standard for IPA)

    Typical usage ratio

    • 98–100% as the sole aromatic precursor in IPA route; dosage adjusted by conversion efficiency and catalyst activity controls

    Downstream process integration

    • Direct oxygen oxidation of 1,3-Xylene to IPA in continuous reactor
    • Catalyst separation and subsequent purification to technical- or polymer-grade IPA
    • IPA feed to downstream PET polycondensation units

    Final product types

    • Bottle-grade PET chips
    • PET film base
    • PET engineering plastics
    • High-clarity polyester fibers

    2. Engineering Polyester Resin Manufacturing (UPR and PES)

    Unsaturated polyester resin (UPR) and polyesters (PES) producers source 1,3-Xylene primarily for its controlled oxidation path to IPA, which acts as a crucial co-monomer for enhancing mechanical strength, chemical resistance, and heat tolerance. Variation in input purity and isomer ratio leads to shifts in resin free volume and end-use mechanical profiles, making upstream quality assurance essential for performance-critical construction composites, electrical insulation, and high-spec coatings.

    Industry compliance standards

    • EN ISO 14021 (Environmental Claims for Polyester Resins)
    • UL 94 V-0 (Flame Resistance in UPR)
    • GB/T 8237 (Chinese Standard for UPR)
    • ASTM D756 (Testing for Polyester Sheet Materials)

    Typical usage ratio

    • 10–20% IPA (derived from 1,3-Xylene) as an acid component in polyester backbone, actual ratio adjusted based on viscosity target and co-monomer blend

    Downstream process integration

    • IPA from 1,3-Xylene blended with phthalic anhydride or maleic anhydride in polycondensation reactors
    • Esterification with glycols under controlled temperature/pH for targeted polymer chain length

    Final product types

    • UPR resins for FRP panels
    • Electrical-grade polyester laminates
    • PES films for flexible electronics
    • Marine composite components

    3. High-Grade Solvent Formulation for Electronics and Coatings

    Precision coatings, adhesives, and electronic assembly industries incorporate high-purity 1,3-Xylene as a specialized solvent. The compound delivers specific evaporation rates, solvency power, and compatibility with sensitive polymers or advanced pigment systems. Its use prevails in processes demanding ultralow residual aromatics—including precision ink manufacturing, controlled-dry-time conformal coatings, and solvent blends for microelectronics module cleaning—where both performance and worker exposure standards are tightly regulated.

    Industry compliance standards

    • EN 71-3:2019 (Safety of Solvents in Electronic Device Coatings)
    • JIS K 5653 (Japanese Standard for Aromatic Solvents in Coatings)
    • NIOSH REL (Xylene vapor exposure control)
    • IEC 60464-3 (Varnishes and Resins for Electrical Equipment)

    Typical usage ratio

    • Typically 5–30% in solvent blends, adjusted by viscosity, evaporation rate, and air quality targets in formulation

    Downstream process integration

    • Direct mixing into coating varnish tanks or adhesive bases
    • On-line blending for mass electronics cleaner baths
    • Controlled addition for digital printing ink dispersions

    Final product types

    • High-purity electronics cleaning agents
    • Specialized wire enamels and PCB conformal coatings
    • Solvent-based digital and offset printing inks
    • Industrial pigment dispersions

    4. Agrochemical Intermediates Synthesis (Herbicides and Pesticides)

    Major agrochemical manufacturers use 1,3-Xylene as a starting aromatic nucleus for synthesizing active intermediates such as isopropyl derivatives, which serve as key building blocks in selective herbicide and fungicide molecules. Reaction control, isomeric purity, and trace contaminant analysis remain critical during halogenation, alkylation, or esterification, as downstream activity and regulatory registration depend on unintended byproduct minimization.

    Industry compliance standards

    • FAO/WHO Specification for Pesticide Technical Materials (including purity and residual solvent limits)
    • GB 2763 (China MRL standards in Agrochemicals)
    • EPA 40 CFR Part 180 (Tolerances and Exemptions for Pesticide Chemicals Residues, USA)
    • ISO 9001/ISO 14001 Integration for Traceability in Production

    Typical usage ratio

    • Used as a precursor or reaction solvent; actual content as starting material typically 20-40% by moles in isomer-specific reaction pathways

    Downstream process integration

    • Initial aromatic nucleus for Friedel-Crafts alkylation or chlorination to form active agro-intermediate
    • Further esterification amidation or ring-substitution as needed for API completion

    Final product types

    • Technical-grade selective herbicides
    • Fungicide intermediates
    • Plant growth regulator APIs
    • Agrochemical synthesis blocks

    5. Specialty Plasticizer and Additives Manufacturing

    Industrial plasticizer specialists harness 1,3-Xylene as a raw material for synthesizing diester-based additives. After catalytic processes, intermediates such as diisophthalate plasticizers increase flexibility, flame retardancy, or UV resistance in high-value polymers. The ability to control isomer ratio, limiting ortho- or para-content, ensures performance attributes critical for construction, medical, or automotive polymer use cases where migration, thermal stability, and non-phthalate status must pass industry-specific scrutiny.

    Industry compliance standards

    • EU Regulation 10/2011 (Plastic Materials and Articles for Food Contact)
    • ASTM D3421 (Plasticizer Content Determination)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
    • ISO 10993-5 (Biological Evaluation of Medical Plastics)

    Typical usage ratio

    • 1–5% of total polymer blend mass for specialty additives; diester intermediates may comprise higher ratios in dedicated formulations

    Downstream process integration

    • Acid-catalyzed esterification of IPA derived from 1,3-Xylene with high-performance alcohols
    • Direct incorporation during reactive plasticizer compounding with PVC, TPU, or engineering resins

    Final product types

    • Non-phthalate flexible PVC sheets
    • Heat-resistant cable insulation
    • UV-stabilized polyolefins
    • Medical-grade tubing and flexible film
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    Competitive 1,3-Xylene prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    1,3-Xylene: A Closer Look from the Manufacturer’s Perspective

    Understanding 1,3-Xylene Beyond the Basics

    At our production site, we handle every batch of 1,3-xylene with attention to both quality and reliability. Known as meta-xylene in the industry, this aromatic hydrocarbon’s properties separate it from its isomeric cousins—1,2-xylene (ortho-) and 1,4-xylene (para-). Over the years, direct feedback from downstream users, regulatory authorities, and transportation partners has shown just how much consistency matters with this solvent. Each batch leaving the plant must meet rigid purity benchmarks to perform as needed in high-stakes manufacturing environments.

    Our Model and Purity Standards

    We produce technical-grade 1,3-xylene refined through advanced fractional distillation techniques. Chromatographic analysis in our on-site lab ensures single-digit ppm levels of contaminants and verifies the composition before the product leaves our tanks. The typical purity level for our 1,3-xylene routinely hits above 99%, with sulfur, water, and benzene controlled far below most customer-required thresholds. We routinely sample and archive every lot, providing a full analytical profile for customer traceability, a step which directly supports audits by major end users in the resin, adhesive, and specialty chemical segments.

    Why Choose 1,3-Xylene Over Other Isomers

    Industry users often ask why some processes benefit from 1,3-xylene over the ortho or para forms. The answer comes down to both reactivity and physical characteristics. In polymer intermediate synthesis, 1,3-xylene offers steric and electronic properties that facilitate specific reaction pathways, resulting in higher selectivity yields in downstream chemistry—especially when producing certain isophthalic acid derivatives. Years of plant-scale troubleshooting have taught us the importance of feedstock consistency. A slight compositional drift toward either the ortho or para isomers can impact not just reaction rates, but also catalyst life and finished product color. These aren’t just numbers on a datasheet; they determine everything from processing throughput to end-user acceptance.

    Applications Shaped by Real-World Demands

    Most of our customers incorporate 1,3-xylene in the production of isophthalic acid, TPA copolymer resins, and specialty coatings. In these applications, tolerance for impurities can be extremely low, since even minor trace residues can derail polymerization control, slow crystallization, or introduce unwanted hues in clear packaging. We’ve seen firsthand how seasonal changes in ambient humidity and temperature create minor shifts in storage stability or handling performance—so our process includes additional stabilizer screening during certain shipments. In flexible foam production, 1,3-xylene’s boiling point aligns well with the operational window of blowing agents, supporting even cell structure development. Technicians from our client base have observed fewer downstream processing interruptions when working with higher-purity meta-xylene, especially where batch consistency has an impact on the reproducibility of performance coatings.

    Operational Insights from Decades of Manufacturing

    Having manufactured xylene isomers since before digital process control reached the industry, we have decades of plant and lab data showing how even slight variations in distillation tower operation affect isomer distribution. This plays out in vapor phase ratios and holding tank blending. With automated sampling points, we identify and mitigate any isomer drift before product reaches tanker trucks. Many resin producers and ink formulators have told us that process reliability upstream translates directly into easier compliance and more stable final formulations. Our operators have adjusted operating pressures and reflux ratios during summer and winter to get a sharper meta-cut from the feedstock. We report these variances transparently in our lot data, including full gas chromatographs for customers who request them.

    What Sets Our Product Apart

    Our 1,3-xylene model reflects not just purity, but also repeatability. In customer trials, small shifts in impurity profiles have been picked up by downstream water treatment systems. Our plant controls naphthalene, methylbenzene, and sulfur traces by regularly cleaning out reboiler bottoms and retesting receiver tanks. For users in paint and specialty resin spaces, this means they see less batch-to-batch variation in viscosity and cure rates. We also store our meta-xylene in nitrogen-blanketed tanks to keep oxidation levels as low as possible—minimizing peroxides and safeguarding user processes that are sensitive to oxidized aromatic solvents.

    Challenges Met in Handling and Logistics

    Anyone who has worked with pure xylene hydrocarbons knows they can evaporate more quickly in transit than heavier aromatics. Based on customer feedback from both coastal and inland plants, we’ve committed to shipping 1,3-xylene in double-sealed drums and ISO tanks with vapor return fittings. This effort means users in extreme climates get the product at essentially the same specification as it left our facility. Regulatory teams have pointed out that cleaner shipping documentation—listing not just assay, but also GC-FID fingerprints—helps downstream QA verify every batch quickly and without ambiguity. Our drivers and handlers undergo training not just in bulk handling, but also in emergency response for minor product releases, a step validated by periodic joint drills with user safety teams.

    Environmental Impact and Regulatory Commitments

    Chemical manufacturing has come under greater scrutiny in recent years for both worker safety and environmental stewardship. 1,3-xylene falls under various local emissions regulations and transportation safety acts. Our in-house environmental team tracks each shipment by batch number and destination province, reporting quantities as required by environmental authorities. Solvent emissions during plant operation are scrubbed by multi-stage vapor recovery towers, and process condensate returns for in-house recycling. We publish annual sustainability statements that include not just emissions totals, but also water and waste minimization figures as they relate to 1,3-xylene processing. In some provinces, customers have been able to claim green certification credits based in part on our closed-system logistics. We see this partnership between manufacturer and user as essential for long-term viability—something our production documents substantiate at every audit.

    Supporting Customer R&D and Scale-Up

    Experienced process chemists often experiment with different xylene isomers as part of pilot projects. Our technical support teams offer archived lab samples and full batch histories for users needing to troubleshoot downstream process anomalies or fulfill regulatory filings. More than once, a customer has traced a subtle quality control issue back to long-chain impurity levels in a non-metaxylene test batch. Our willingness to disclose the exact batch blending ratios, storage times, and full source lot traces builds real trust with R&D teams. We’ve even hosted visiting engineers for on-site process reviews, walking them from raw feedstock intake through finished packing. For us, an open relationship streamlines not just joint trials but also full-scale conversions from para- or ortho-xylene feedstocks.

    The Importance of Traceability

    Supplying 1,3-xylene means more than just shipping product; it involves taking responsibility for every step from crude feedstock distillation through finished product certification. Manufacturing sites producing PET copolymers have flagged trace impurity-related issues that take months to investigate unless the supplier maintains an open paper trail back to the source. We create electronic records that give authorized customers access to batch test results and delivery conditions, making post-shipment reconciliation possible even months after delivery. This transparency reduces disputes, accelerates safety reporting, and simplifies customer audits. In our experience, this approach has reduced downstream production hiccups for multiple large operations, particularly during regulatory inspections.

    A Focus on Continuous Improvement

    Our experience as direct manufacturers of 1,3-xylene means that learning never stops. We keep a line open for customer input on both performance and supply chain. As major users transition their plants for stricter solvent capture—and tighter control over process water emissions—we consult on formulation and blending strategies, share multi-year toxicity and exposure data, and develop shipping partnerships that support their compliance goals. In some cases, new automation upgrades in our plant have allowed for even tighter control over split ratios between xylene isomers, generating uniquely consistent lots that meet challenging downstream targets for color and reactivity. In other cases, the solution has come down to modifying packing schedules for customers whose receiving facilities require off-hours truck arrivals. Maintaining this kind of relationship-focused manufacturing keeps our 1,3-xylene both available and high in quality.

    Key Learnings from Our Engineering Teams

    Direct involvement in the manufacturing of 1,3-xylene shines a spotlight on the importance of small process details. Our engineering staff notes that upright distillation towers offer a tighter boiling range split than old-style tray columns, resulting in greater reproducibility of meta isomer content across product runs. Process engineers review tower calibration data monthly and correlate it with feedback from both refineries and end users. Mechanical changes in tower internals, particularly improvements in phase separation zones, prevent cross-contamination with ortho-xylene, maintaining a sharp isomer cut. Logistics engineers coordinate directly with warehouse staff to check for temperature excursions during storage and loading, giving extra confidence to specialty users that the meta-xylene in their facility is precisely what our certificate states.

    Why End Users Value Specification Consistency

    Large-scale purchasers from North American and Asian markets consistently mention that it’s not just the high assay of our 1,3-xylene that matters, but also the repeatable impurity profile. Major PET and coatings producers benefit from granular data as it allows them to fine-tune their own processes for maximum output and reproducibility. Insiders in the thermoset resin trade have pointed out cases where switching to a different xylene supplier with variable off-spec isomer content disrupted months of downstream quality control tracking. A few have recounted how their jet dyeing lines or flexible foam reactors ran with fewer interruptions and lower off-grade rates after switching to our product—backed up by side-by-side chromatogram comparisons run at multiple independent laboratories.

    Supporting Safe and Efficient Use

    Outside of the plant gate, responsibility extends to providing both technical support and safety guidance. We keep an updated archive of handling guidelines, recommended protective measures, and industry application notes on file for customers. On request, we host video walk-throughs designed for new plant staff or maintenance contractors working with 1,3-xylene for the first time. Waste solvent streams are another major concern, especially for firms looking to meet tighter limits on volatile organic compound releases. Our technical teams exchange hands-on tips with user facilities, from vapor recovery upgrades to alternate cleaning procedures, based on real-world feedback and industry best practices.

    Adapting to Shifts in Global Demand

    Demand for 1,3-xylene tends to surge as downstream specialty and performance polymer markets expand, pushing plant utilization rates. Our planners track global trends and coordinate with feedstock suppliers early, shoring up inventory before seasonal spikes. Several years ago, unexpected raw material shortfalls caused a short-lived crunch in meta-xylene supply; we responded by building additional on-site storage to better weather future swings. Logistics teams are briefed every week as customer orders ramp, and we hold emergency planning drills with both in-house and contract drivers. This way, we keep supply interruption risks to a minimum, supporting our customers’ own risk management systems.

    Building Trust Through Direct Manufacturing

    Having supplied 1,3-xylene to hundreds of users ranging from small specialty shops to multinationals, we have seen that direct contact between supplier and user leads to the best results. The reliability of direct sourcing helps ensure not just purity, but also availability. Customers tell us they value working with those who stand behind the material from raw feedstock aggregation to final quality check. This approach gives users the assurance that they are receiving exactly what they ordered. Our after-sales staff check in post-delivery and gather unfiltered feedback—both for improving our plant processes and keeping customers’ processes running smoothly. A single-point relationship fosters transparency around shipment and certification, qualities distributors or resellers simply cannot replicate.

    The Distinctive Edge of Manufacturer-Supplied 1,3-Xylene

    Years in production, shipping, and support have shown us that success with 1,3-xylene comes down to a few straightforward factors: reliable feedstock supply, rigorous process control, hands-on quality verification, and open customer communications. Our method ensures each customer gets not only a pure product but also the guarantees built into every batch from start to finish. Whether the end use calls for robust resins, specialty monomers, or high-spec coatings, the difference that comes from genuine manufacturer involvement shows up every time in the results.