Industrial Ethylene Glycol

    • Product Name: Industrial Ethylene Glycol
    • Chemical Name (IUPAC): ethane-1,2-diol
    • CAS No.: 107-21-1
    • Chemical Formula: C2H6O2
    • Form/Physical State: Liquid
    • Factroy Site: Jinshan District, Shanghai, China
    • Price Inquiry: sales4@ascent-chem.com
    • Manufacturer: Sinopec Shanghai Petrochemical Co., Ltd.
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    Specifications

    HS Code

    957416

    Chemicalformula C2H6O2
    Molecularweight 62.07 g/mol
    Appearance Colorless, odorless, syrupy liquid
    Density 1.113–1.115 g/cm³ at 20°C
    Boilingpoint 197.3°C
    Meltingpoint -12.9°C
    Solubilityinwater Completely miscible
    Flashpoint 111°C (closed cup)
    Viscosity 16.1 mPa·s at 25°C
    Ph 6.5–7.5 (50% aqueous solution)
    Refractiveindex 1.4318 at 20°C
    Vaporpressure 0.06 mmHg at 20°C

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

    Packing & Storage
    Packing Industrial Ethylene Glycol is packaged in a 200-liter blue HDPE drum, featuring secure screw-cap closure and clear hazard labeling.
    Container Loading (20′ FCL) 20′ FCL typically loads about 18-20 metric tons of Industrial Ethylene Glycol, packaged in steel drums or IBC tanks for export.
    Shipping Industrial Ethylene Glycol is shipped in corrosion-resistant, tightly sealed drums, intermediate bulk containers (IBCs), or tank trucks. Containers are clearly labeled, handled, and stored in cool, well-ventilated areas away from direct sunlight, heat, and incompatible substances. Appropriate safety Precautions and documentation are ensured during transit to comply with regulatory standards.
    Storage Industrial ethylene glycol should be stored in tightly closed, clearly labeled containers made of stainless steel, polyethylene, or glass. The storage area should be cool, well-ventilated, and away from direct sunlight, heat sources, and incompatible materials like strong oxidizers. Spill containment measures and proper grounding to prevent static discharge are recommended. Ensure appropriate safety signage and restricted access to authorized personnel only.
    Shelf Life Industrial Ethylene Glycol typically has a shelf life of two years, provided it is stored in tightly sealed containers under proper conditions.
    Application of Industrial Ethylene Glycol

    Applications of Industrial Ethylene Glycol in Industrial Manufacturing

    Our manufacturing operations deliver high-purity ethylene glycol to key industrial sectors with strict traceability and regulatory compliance. The following are core application areas, based on real downstream usage in global chemical processing and material conversion industries.

    1. Polyester Fiber and Resin Production

    Ethylene glycol acts as a primary monomer in polyester fiber and PET resin manufacturing. The esterification and polycondensation reactions require continuous, controlled glycol feedstock for optimal molecular weight and mechanical strength in end products. Producers monitor molecular percentages to balance polymer chain length, achieve low impurity profiles, and meet international fiber specifications. End users transform the intermediate into filaments, bottles, and film for demanding textile and packaging sectors.

    Industry compliance standards

    • ISO 9001:2015 for quality management in polymer production
    • REACH Regulation (EC) No 1907/2006 for chemical safety in Europe
    • FDA 21 CFR §177.1630 for PET resins in food contact applications (United States)
    • Oeko-Tex Standard 100 for textiles safety

    Typical usage ratio

    • 32–36 wt% of total monomer input in polyester polymerization
    • Ratio adjustments based on target IV (Intrinsic Viscosity) and polymer melt processability

    Downstream process integration

    • Continuous feed to esterification reactors with purified terephthalic acid (PTA) or dimethyl terephthalate (DMT)
    • Glycol in initial ester exchange and subsequent polycondensation; excess recovered and recycled
    • Quality control involves end-group analysis and glycols residual monitoring in the melt
    • Glycol removal by vacuum distillation downstream to meet low free monomer requirements in chips

    Final product types

    • Polyester staple fiber and filament yarn
    • PET bottles, sheets, and packaging film
    • Industrial textile bases (geotextiles, conveyor belts)
    • Engineering resins for automotive and electrical components

    2. Engine Coolant and Antifreeze Formulation

    Automotive and heavy industry fluid system manufacturers use ethylene glycol as a heat transfer base fluid. The material suppresses freezing and elevates boiling points in engine and electronic cooling circuits. Formulations require precision blending with corrosion inhibitors, dyes, and antifoam additives to comply with regional and OEM engineering requirements. Our glycol maintains consistent purity for critical long-life coolant specifications, supporting applications from passenger vehicles to power plant turbines.

    Industry compliance standards

    • ASTM D3306 for engine coolant solutions
    • SAE J1034 for coolant performance validation
    • BS 6580:2010 for coolant and antifreeze quality (United Kingdom)
    • OEM-specific technical standards (VW TL 774, GM GMW 3420, Ford WSS-M97B44-D)

    Typical usage ratio

    • 45–60 vol% glycol in finished coolant blend, seasonally adjusted for local climate protection
    • Formulation concentration varies based on freezing protection target (-12°C to -40°C application)

    Downstream process integration

    • Direct mixing with deionized water and additive packages in batch or inline systems
    • Quality monitoring by refractometry and pH analysis during blending
    • Integration in fill stations at OEM assembly lines or for aftermarket bottled sales
    • Packaging into bulk, drum, or retail formats after stability and performance testing

    Final product types

    • Premixed engine coolants and concentrates
    • Industrial chiller fluids and heat transfer agents
    • Stationary generator and heavy-duty vehicle coolants
    • Battery thermal management fluid systems

    3. Deicing and Aircraft Anti-Icing Fluids

    Aviation service companies and airport ground operations blend glycol-based fluids for rapid ice removal and frost protection. Controlled glycol concentrations deliver effective point-of-use deicing while meeting regulatory limits on environmental discharge and biodegradability. Each formulation targets performance in subzero ramp conditions, adhering to strict standards for fluid holdover time and residue minimization on sensitive flight surfaces.

    Industry compliance standards

    • SAE AMS 1424 (Type I) and AMS 1428 (Type II/IV) for aircraft deicing/anti-icing fluids
    • Federal Aviation Administration (FAA) Fluid Quality Program
    • Environment Canada Technical Standards Document
    • REACH Annex XVII for toxicity and environmental impact

    Typical usage ratio

    • 80–95 wt% glycol in concentrated deicing fluids
    • Dilution at application site; ratio varies with outside air temperature and specific airline protocols

    Downstream process integration

    • Pumping into high-capacity heated tanks for mixing with water and performance additives
    • Real-time testing for viscosity, surface tension, and freezing point depression
    • Transferred to aircraft service vehicles with calibrated dosing systems
    • Used in runway and taxiway ice management through dedicated sprayers

    Final product types

    • Aircraft wing and fuselage deicing fluid
    • Type II/IV anti-icing slush retardant coatings
    • Runway and pavement de-icers for airport facilities
    • Service truck replenishment concentrates

    4. Natural Gas Dehydration and Gas Processing

    Professional gas processing operators utilize glycol as a liquid desiccant to remove water vapor from natural gas streams. The process uses counter-current contactor towers, with glycol recirculated by high-efficiency regeneration loops. Our material supports low foaming, minimizes degradation, and delivers reliable dew point control even in sour gas environments. Every batch aligns with strict hydrocarbon processing and pipeline transmission specifications.

    Industry compliance standards

    • API RP 941 for glycol dehydration in gas processing
    • ISO 13686 for natural gas quality designation
    • OSHA CFR 1910.119 for process safety in dehydration units
    • U.S. EPA 40 CFR Part 60, Subpart KKK for VOC emission limits in glycol dehydration

    Typical usage ratio

    • Pure glycol circulated; typically 99+ wt% in fluid contacting system
    • Flow rate and injection ratios depend on gas flow, inlet temperature, and water content

    Downstream process integration

    • Injected at top of glycol contactor tower; natural gas enters bottom for counterflow dehydration
    • Continuous regeneration by heating and stripping water vapor off spent glycol
    • Monitoring for entrained hydrocarbon loss and maintenance of glycol purity
    • Spent glycol collected for reclamation or environmentally responsible disposal

    Final product types

    • Dehydrated pipeline-grade natural gas
    • Processed LPG (propane, butane)
    • Upgraded methane for petrochemical feedstock
    • Natural gas liquids (NGL) streams

    5. Industrial Solvents and Chemical Synthesis

    Chemical plants exploit glycol’s hygroscopic and solvent properties in alkyd resin manufacturing, dye synthesis, and plasticizer formulations. Solvent formulation demands close QC monitoring of water content, acidity, and impurity index to prevent interference in catalysts or polymerization stages. End use cases include intermediate building blocks for adhesives, paints, and synthetic lubricants, as well as direct application in ink and pigment preparations.

    Industry compliance standards

    • ISO 14001 for environmental management during solvent handling
    • Good Manufacturing Practice (GMP) guidelines for specialty chemicals
    • US TSCA & EU REACH notification for safe chemical manufacture and transport
    • Industry-specific purity requirements for paint and coatings (e.g., ASTM D2369)

    Typical usage ratio

    • 30–60 wt% in resin cook or batch reactor feeds for alkyds and plasticizers
    • Adjustment according to desired chain flexibility and solvent evaporation characteristics

    Downstream process integration

    • Direct addition to reaction vessels for condensation or esterification processes
    • Role as a primary solvent in milling and pigment dispersion for coatings
    • Quality checked via GC or HPLC for trace impurity content
    • Removal or recovery in solvent distillation and resin post-processing steps

    Final product types

    • Alkyd and polyester industrial resins
    • Plasticizers for PVC and rubber compounds
    • Printing inks, toners, and industrial dyes
    • Formulated surface coatings and adhesives

    6. Heat Transfer Fluids in HVAC and Industrial Cooling

    The chemical’s well-characterized freezing and boiling point modification profiles form the basis for specialized heat transfer fluids in closed-loop systems. Plant operators and original equipment manufacturers (OEMs) select glycol-based fluids for chillers, geothermal installations, district heating/cooling, and process temperature control loops. Our production ensures low corrosivity, high stability under thermal cycling, and complete documentation for use in large-scale mechanical installations.

    Industry compliance standards

    • ASHRAE 34 for refrigerant classification and safety
    • EN 378 for safety and environmental standards in HVACR systems
    • BS EN ISO 9001 for manufacturing of heat transfer fluids
    • RoHS 3 (EU 2015/863) for lead and heavy metal content in HVAC applications

    Typical usage ratio

    • 35–55 vol% glycol in brine and secondary refrigerant applications
    • System charge determined by minimum required freeze protection and maximum allowed viscosity for pumpability

    Downstream process integration

    • Direct fill into heat exchangers, cooling towers, and chilled water loops
    • System pre-treatment with corrosion inhibitor packages
    • Routine in-field measurement of glycol concentration by refractometer or hydrometer
    • Compatibility reviewed with all wetted materials in the installation (steel, copper, polymers)

    Final product types

    • Commercial and industrial HVAC brine solutions
    • District heating/cooling medium for energy networks
    • Process cooling fluids for plastics molding, food plant systems
    • Geothermal heat pump circuit fluids

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    Certification & Compliance
    More Introduction

    Industrial Ethylene Glycol: Building the Backbone of Modern Production

    An Insider’s View on Reliable Ethylene Glycol Manufacturing

    Ethylene glycol, known to many in the industry simply as MEG for monoethylene glycol, stands among those chemicals that shape the daily realities of manufacturing operations across a range of applications. Working on the production floor for many years, we see firsthand how the purity, consistency, and handling of ethylene glycol set the pace for downstream processes. Our facilities have been producing ethylene glycol at an industrial scale for decades, dosing feedstocks, managing purity, and troubleshooting everything from catalyst fouling to impurity control—challenges that give us a unique appreciation for what our clients contend with on their production lines.

    Driving our reactors are hydrolysis and oxidation reactions of ethylene, orchestrated under tight monitoring with heat exchangers humming and quality labs sampling off every batch. We have tuned our processes to deliver product with water content maintained below established maximums and a typical purity exceeding 99.9%, since customers in heat transfer, antifreeze compounding, and PET resin production demand a material that will not introduce contaminants or cause downstream issues. Impurities like diethylene glycol and acetaldehyde are tightly controlled not just for product claims, but because out in the field, we hear about resin yellowing, line blockages, and processing reliability—they reflect the quality decisions made at the very start, in the bulk glycol storage tanks.

    Model Choices: Bulk Industrial MEG & Specialty Cuts

    The product that leaves our factory most regularly is standard Monoethylene Glycol, sold as a clear, odorless liquid, tanker-loaded and confirmed per our schedule of analysis. Beyond bulk default grades, we’ve responded to requests for ultra-low moisture and food contact-compliant cuts, though most of our output supports industrial requirements. Typical specs run color below APHA standards, with iron and chloride levels kept at low parts per million, since corrosion risk and color carryover matter for pipeline antifreeze, engine coolant concentrates, and polyester fiber manufacturing.

    Not all glycol needs are alike, and the distinctions sometimes get lost among end-users. We frequently help clarify: MEG, or monoethylene glycol, provides the straightforward two-carbon structure with high hydrophilicity and low volatility—traits critical for efficient heat transfer and stability in demanding chemical environments. Diethylene glycol (DEG) and triethylene glycol (TEG), both formed as byproducts or via further reaction steps, impart different boiling points and viscosities, which limits their use in certain heaters, chillers, and flexible foam manufacturing. Polyethylene glycols (PEGs), formed by controlled polymerization, diverge even further in application, becoming thick, wax-like products for personal care, lubricants, and niche pharmaceutical processes. We focus production on MEG, emphasizing batch separation and monitoring, minimizing crossover and guaranteeing a single, high-purity output.

    Trusted in Heat Transfer, Refrigeration, and Beyond

    Working with glycol every day brings front-and-center the reasons for its longevity in the chemical toolbox. The chief reason is not only its freezing point depression but its reliable thermal conductivity profile. Maintenance teams for district cooling schemes, chiller manufacturers, and automotive OEMs require antifreeze that pours smoothly at subzero temperatures yet withstands repeated heat cycling without decomposition. Each load we fill often goes straight to mixing tanks at coolant blenders, or carries into the blending manifolds for engine antifreeze and HVAC systems—not just as a diluent, but as a core operating fluid whose performance sets safety margins for entire installations.

    Everyday production brings reminders that end use sets real standards. An automotive coolant processor shared feedback about the impact of trace metal content on corrosion inhibitors. Even a fraction of a ppm excess iron or copper influences inhibitor lifetime, so our team pays close attention to storage tank cleanliness and pipeline integrity as much as to reactor conditions. For process refrigeration or electronics thermal management, water content makes a difference, as excess water content will skew the fluid’s freezing profile and long-term stability. Customers operating food-processing chillers require confirmation that glycols supplied not only meet physical specifications but also avoid contaminants that could trigger regulatory compliance headaches farther down the chain.

    MEG’s Pivotal Role in Polyester Manufacturing

    Our facility delivers thousands of tons of MEG every month for the polyester market—both fiber and PET resin. This is another sector where consistency must be more than a promise. Involvement in polyester resin plants over the years underscores that viscosity, color, and acetaldehyde content mark the difference between an efficient run and hours of expensive rework. Polyester grade MEG brings particular scrutiny on low-odor, extremely low water, and minimal side product levels, as impurities may block catalyst sites or lead to yellowing and breakage in the extruded resin.

    Unlike applications where small variations are tolerated, fiber and film plants run around the clock using continuous-feed reactors, pulling our glycol in by railcar or road tanker directly into the esterification step. The quality assurance process with polyester facilities calls for more than sending a certificate; it involves joint troubleshooting, timely supply, and technical support whenever off-specification material impacts their sensitive throughput. We keep technical teams and field service engineers ready to address questions about dosing, compatibility, and troubleshooting that can’t always wait for paperwork to clear.

    Distinguishing Industrial Ethylene Glycol from Commodity and Specialty Glycols

    Across the globe, ethylene glycol carries a reputation rooted in reliability and broad application, but differences in upstream process, impurity handling, and traceability set industrially produced MEG apart from smaller-batch or commodity glycols recycled from spent products. In our plant, all feedstocks are sourced from petrochemical-grade ethylene, processed through proprietary catalysts, and finished using vacuum distillation methods that strip away both excess water and organics. Every batch gets logged with complete analytical results; we do not mix recovered streams or cut corners on trace heavy metals control.

    Commercial experience tells us that the market is filled with products labeled as glycol yet varying wildly in quality. Brokers sometimes blend grades, add denaturants, or recycle process waste, resulting in subtle but meaningful increases in aldehyde, color, or organic acid contaminants. Our shipment guarantee means we never use glycol sources exposed to unknown contaminants or recovered through open-loop reprocessing—the final user gets a material consistent with demanding mechanical and chemical property requirements, whether for OEM customers, institutional chillers, or large chemical synthesis plants. OEMs and large water treatment operations return to purchase directly from manufacturers because it gives them chain-of-custody, management over regulatory risk, and technical support directly tied to their application environment.

    Challenges Seen on the Factory Floor

    Chemical manufacturing rarely sticks to pure theory. In the middle of summer, reactor temperatures can spike unexpectedly as ambient conditions fluctuate, so our control engineers stay vigilant for shifts in reflux ratios and catalyst loading. We have learned to set wider safety margins than any test method alone would suggest—thermal runaway remains a concrete risk, not a theoretical one. Polymerization can creep up, slowly thickening product in a batch, which no generic process specification truly predicts. Tank sampling and on-line analyzers prevent a lot of downstream grief, letting us catch subtle color formation or small molecule build-up before deliveries ship.

    Maintenance is equally important. Leaks may seem trivial on paper, but one cracked heat exchanger tube leads directly to off-grade product—contaminated with process fluids or ambient water vapor, pushing water content outside acceptable limits. Our mechanics and field operators move quickly to isolate problems, flush contaminated lines, and resume monitored production in hours rather than days. Every event yields improvements—better gasket selection, revised maintenance intervals, or added in-line sampling points. Each lesson saves future batches and builds confidence for clients who trust our deliveries in their systems.

    Every delivery draws on years of hard-won experience handling shipping logistics, export controls, and changing market demands. Local regulatory shifts push us to update transportation labeling and packaging, while international clients often face evolving standards for storage and environmental discharge. Our shipping staff clears customs, verifies container seals, and confirms documentation before any glycol shipment hits the highway, knowing even the best chemistry fails if the product is mishandled in transit. We keep our eyes open for details that deliver not just the expected product but also the reliability and predictability that large-scale industry requires.

    Putting Product Knowledge to Work: Customer Partnerships and Technical Solutions

    No manual perfectly prepares a manufacturing crew for the questions that come from real users. Water treatment specialists call to ask how propylene glycol and ethylene glycol liquor compare for biofouling control in closed loops. Bottling plant inspectors quiz us on blanketing procedures to avoid atmospheric contamination. Large chemical customers bring us unfiltered field samples with unexpected residue, looking for root causes that might track back to invisible glycol impurities.

    Nothing in our approach stands still—in years past, supporting a client during a cold snap meant expediting glycol transfer by tanker while bridging with available stock from on-site reserves. Supporting a polyester plant requiring a turnaround during annual maintenance means more than just readiness; it takes clear lines of communication and fast lab support for “out-of-range” test results.

    Some teams want glycol in drums, others require ISO tanks or direct-to-process rail loading. We adapt filling lines, refrigeration setups, and tanker scheduling to match the needs spelled out by customer operations teams, not just by warehouse stock requests. Upstream, we troubleshoot catalyst selection, reactor residence time, and stripping temperatures when even a small cloudiness or odor change can spell out tens of thousands of dollars in lost production down the line.

    Looking Toward Longevity: Compliance, Environment, and Supply Security

    Sustainability has become more than a slogan for our engineering group. Pressures for reduced fugitive emissions, waste valorization, and improved handling controls drive upgrades in every new process rollout. Traditional glycol manufacturing holds the potential for ethylene oxide emissions or off-spec waste that cannot be economically repurposed. We invest in process analytics, closed-loop controls, and heat recovery to limit both losses and energy consumption, because running a tight operation means less downtime and lower cost for both us and our users.

    Demand surges and market volatility challenge even well-organized operations. During the petrochemical upswings—or political shocks in major feedstock regions—glycol availability shrinks and prices move fast. The reason many industrial buyers prefer direct purchase from manufacturers rather than intermediaries comes down to response time and problem-solving. In our business, holding extra inventory, posting early shipment windows, and building redundancy into supply contracts smooth out the rough patches that supply chain disruption brings.

    In recent years, increased regulatory oversight of VOCs and hazardous waste brings closer cooperation with customers on transport and storage compliance. Our environmental health and safety staff participate in regulatory audits to make sure not only glycol itself but every step from raw material acceptance through tanker loading meets evolving expectations for environmental stewardship and workplace safety. As manufacturers, we offer more than just chemical—supporting effective implementation, training, and documentation to keep both users and our staff prepared for inspections and certification audits.

    Knowing What the Market Needs

    Direct feedback loops with real operators and engineers tell us more about what works—and what fails—than marketing surveys or abstract “industry trend” reports. Our team spends hundreds of hours every year visiting equipment rooms, blending lines, and customer bulk storage areas. Seeing where glycol crystallizes in cold bends, learning how small leaks erode system performance, and listening to operators walk through their daily checks spurs design improvements that generic process reviews miss.

    In the past, antifreeze blenders struggled with inconsistent supply, forcing them to switch quickly between containers of varying origin. Moving to manufacturer-direct supply stabilized both quality and planning; it meant less troubleshooting in mixing routines, better assurance for regulatory filings, and more focus for local teams on uptime and operational targets.

    Polyester producers with complex resin processes found that contaminants—even below specification limits—sometimes interact with catalysts or color stabilizers in unexpected ways. Open dialogue yielded samples, technical feedback, and rapid solution-finding, sometimes over the course of just one production run. Perhaps most importantly, sharing production traceability and test results strengthened trust that couldn’t be built simply by promising “commodity grade” or “industry standard” material, as every site and every application places demands that only real manufacturing transparency can assure.

    Summary: Manufacturing Commitment Shows in Product Quality

    Producing industrial ethylene glycol means shouldering the requirements, risks, and opportunities that come from blending chemistry, process control, logistics, and customer partnership into every load that leaves a tank or fills a drum. Chemical plants never sleep, processes demand constant watchfulness, and changing markets keep even established operators ready to adapt.

    Quality matters because customers use glycol in systems where failure can cost hours, product, or even safety—chiller lines, food processing, polyester reactors, and automotive coolants all trust in the fundamental reliability of the glycol behind their products. Every challenge in manufacturing, every lesson in contamination or off-grade troubleshooting, ripples outward to hundreds of end-users who count on product to perform as specified. Our decades of experience speak in every delivery, every test result, and every troubleshooting phone call—a commitment to delivering industrial glycol that doesn't just meet standards but stands the harsh, round-the-clock testing of daily industrial life.