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HS Code |
507642 |
| Cas Number | 111-46-6 |
| Molecular Formula | C4H10O3 |
| Molecular Weight | 106.12 g/mol |
| Appearance | Colorless, odorless, hygroscopic liquid |
| Density | 1.118 g/cm³ at 20°C |
| Melting Point | -10.5°C |
| Boiling Point | 245°C |
| Solubility In Water | Miscible |
| Viscosity | 35.7 mPa·s at 25°C |
| Flash Point | 143°C (closed cup) |
| Purity | Typically ≥ 99% |
| Refractive Index | 1.447 at 20°C |
As an accredited Industrial Diethylene Glycol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Industrial Diethylene Glycol is typically packaged in 200-liter blue HDPE drums with secure, tamper-evident lids for safe storage and transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Industrial Diethylene Glycol: Loaded in 230kg drums, 80 drums per container, total net weight approximately 18.4 MT. |
| Shipping | Industrial Diethylene Glycol is shipped in tightly sealed steel drums, intermediate bulk containers, or tank trucks, ensuring protection from moisture and contamination. Containers are clearly labeled for hazardous material transport and comply with relevant regulations. During transit, the chemical must be stored in a dry, well-ventilated area, away from incompatible substances. |
| Storage | Industrial Diethylene Glycol should be stored in tightly closed containers made of stainless steel or suitable plastic, away from heat, direct sunlight, and incompatible substances such as strong oxidizers. The storage area must be cool, well-ventilated, and equipped with spill containment. Proper labeling and access control are essential to ensure safety and prevent accidental exposure or contamination. |
| Shelf Life | Industrial Diethylene Glycol typically has a shelf life of 2 years when stored in tightly sealed containers, away from heat and moisture. |
Applications of Industrial Diethylene Glycol in Industrial ManufacturingIndustrial Diethylene Glycol serves as an essential raw material in several large-scale manufacturing applications, valued for its chemical properties and functional performance in downstream production lines. The material features prominently in resins, antifreeze, plasticizers, solvents, and gas processing. Our material is integrated into customer plants worldwide to meet exacting process and quality needs across specialized sectors. 1. Unsaturated Polyester Resin ProductionIn the synthesis of unsaturated polyester resins, Diethylene Glycol acts as a core glycol component to adjust molecular weight and enhance flexibility. Producers use it for balance between rigidity and chemical resistance in resin design. It participates directly in the polyesterification reaction, combining with maleic anhydride and phthalic anhydride under controlled temperatures and vacuum. The resultant resins form the base for reinforced composites, such as fiberglass laminates and molded plastics for building, marine, and automotive applications. Industry compliance standards
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2. Gas Dehydration in Natural Gas ProcessingDiethylene Glycol functions as a liquid desiccant for natural gas dehydration, where operators rely on its hygroscopic properties to absorb water vapor from raw natural gas streams. The process prevents pipeline corrosion and hydrate formation. Glycol dehydration units employ continuous regeneration cycles, making thermal stability and low volatility critical during operation. The dehydration process must comply with environmental emission limits and performance specifications to meet gas pipeline entry standards. Industry compliance standards
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3. Heat Transfer Fluid and Antifreeze FormulationsIndustrial users select Diethylene Glycol for heat transfer fluids and low-temperature antifreeze blends. Its high boiling point and low freezing point allow for effective thermal energy transfer in closed and semi-open circuits, especially in chemical process plants, refrigeration units, and industrial chillers. Plant engineers favor it in formulations where ethylene glycol’s volatility or environmental profile may be unacceptable. The preparation process requires precise dilution and inhibitor addition to protect against corrosion and scale within mixed-metal systems. Industry compliance standards
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4. Plasticizer Intermediate in Flexible PVC ManufacturingProducers utilize Diethylene Glycol as a precursor to specific adipate and phthalate plasticizers in flexible PVC and copolymer blends. The glycol undergoes esterification reactions with adipic acid (forming diethylene glycol dibenzoate, for example) to yield highly compatible and low-volatility plasticizers suitable for electrical cable coatings, flooring, and flexible film products. Systematic control of residual glycol and byproducts ensures compliance with product safety and low migration requirements. Industry compliance standards
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5. Solvent for Dyeing and Textile Chemical ProcessingDiethylene Glycol is widely adopted as a high-boiling solvent and humectant in the textile industry, where it enables dye penetration and fixation in synthetic fiber processing. Textile chemical engineers utilize its solvency for disperse and vat dyes, ensuring even dye uptake and optimizing reactor throughput. It also stabilizes specialty finishes on polyester and acetate blends. Process dosing is regulated for effluent safety and fiber compatibility. Industry compliance standards
Typical usage ratio
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6. Tobacco Humectant and Flavor CarrierTobacco blend processors employ Diethylene Glycol as a regulated humectant and carrier for flavor compounds. Its ability to retain moisture and dissolve aromatic agents ensures consistent tobacco product quality in high-speed cigarette and cigar manufacturing lines. Dosing levels remain strictly controlled to stay within regulatory maxima. All handling adheres to GMP protocols and batch traceability, with analytical confirmation of residual levels in finished tobacco goods. Industry compliance standards
Typical usage ratio
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Competitive Industrial Diethylene Glycol prices that fit your budget—flexible terms and customized quotes for every order.
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Making diethylene glycol for industry means working up close with the raw material, not just moving drums and tanks from A to B. We take pride in refining the process batch by batch, keeping our focus on consistency and quality. Through years of hands-on manufacturing, our team knows the substance in a way that no datasheet alone can explain.
Diethylene glycol, often abbreviated as DEG, serves a wide span of industries. We see it in polyester resin production, in antifreeze, plasticizer blends, brake fluids, and certain specialty inks. Each end use leans on a slightly different property of DEG: its solvency, hygroscopic nature, or its boiling and freezing points. Over time, we have tuned our own operation to deliver a product that meets strict standards because downstream processes count on every molecule being right.
Every run begins with ethylene oxide as our core feedstock. The way DEG forms is a matter of controlled conditions: pressure, temperature, and catalyst choice. We track every variable, knowing that deviations can lead to higher monoethylene glycol or unwanted triethylene glycol. In our plant, equipment maintenance and process adjustments become part of daily routine to protect both the safety of our team and the integrity of each batch. Not all DEG looks identical under a microscope; some lots carry trace impurities—water, MEG, TEG, and even subtle coloring compounds. Those small differences can cause customer headaches, which is why our lab goes through multiple analytical steps, testing every outgoing lot.
Our customers come to us asking for clarity about whether our DEG will work in their process, because downstream operators sometimes find surprises even after years of experience. DEG is not rare, but finding steady supply built on knowledge and pride in production does make a difference. From solvent extraction to fractionation, real-world practice always exposes new process quirks that the books miss.
The DEG leaving our plant averages purity over 99.5%. This figure reflects a lot of hands-on fine-tuning and troubleshooting on the plant floor. Each model, or batch, might be differentiated not by a fancy code but by the slight makeup adjustments we document in our plant logbooks. Water content remains low—always under 0.1% in our regular streams—because that degree of dryness influences resin reactions and shelf life for other manufacturers. Acid numbers and color (Pt-Co scale) find close scrutiny. While big customers order in bulk, smaller specialty users sometimes request custom analyses or tighter cut ranges, which our on-site lab completes, not a third-party outfit.
The product has a density of about 1.12 g/cm³ at 20°C and a boiling point near 245°C. These physical details tell part of the story. We check on viscosity, flash point, water solubility, and residue, since just a few parts per million can alter downstream plant yields or even operator safety. For instance, a small upturn in MEG content might suit low-cost antifreeze, but that won't cut it for resin grade, where side-reactions must be avoided.
It is easy to treat chemicals like items on a checklist, but DEG rewards hands-on knowledge. As a solvent, it dissolves resins, dyes, oils, and fats that water simply cannot budge. We have shipped bulk DEG to alkyd resin houses who need every drop clean and water-free, since polymer reactions slow or veer off-course if corner cases in purity are missed. DEG lowers freezing point in antifreeze but also resists breakdown over a long service period. That longevity has saved cold-room operators from expensive machinery downtime.
Printing ink formulators use DEG to optimize flow and drying. Its moderate solvency and humectant properties provide just the right drying/moistening balance for certain specialty inks. We field questions regularly on exactly which contaminants, if any, could clog filters or cause off-odors, since this can cost a production run. We keep in close contact with technical users, since resins and inks often have little margin for off-spec supply. Much of our job becomes troubleshooting and support, because switching DEG sources mid-process rarely goes without hiccups.
Industry often lumps DEG in with other glycols, especially monoethylene glycol (MEG) and triethylene glycol (TEG), but our long-term customers know that differences play out in every application. Compared to MEG, DEG carries extra ether linkages, so it offers lower volatility, better solubility for hydrophobic solutes, and slightly higher viscosity. These properties mean our DEG works better for complex esterification and when a higher boiling solvent means improved process safety or efficiency.
TEG, with its longer chain, shows up more in dehydration operations, especially for natural gas. It holds onto water more fiercely but sacrifices some flow properties needed for resin chemistry. In our plant, DEG sits in a sweet spot: not as volatile or simple as MEG, not as sticky or slow as TEG. We've had many a conversation with customers looking for the right fit; some want to push their process to the edge and try substitutions, only to learn a different glycol changes everything from shelf life to reaction rate. Our team often runs test syntheses at small scale, examining not just whether a replacement “works” in theory, but whether it performs reliably in practice over long timeframes.
Large industrial users prioritize dependable shipments and batch consistency. We focus as much on logistics—well-sealed containers, careful temperature management, rigorous verification of each lot at loading points—as we do on what goes inside the drum. Experience tells us that overlooked trace water or a higher-than-promised TEG content can ripple through customer processes rapidly. We've worked through years marked by volatile feedstock prices and regulatory changes, always aware that market uncertainty makes customers wary. Producers who cut corners on process control risk costly callbacks and lost trust. We have seen several large-scale operators lose business with a single contaminated batch.
As regulations change, we constantly monitor for new reporting, emissions limits, and workplace guidelines. We aim to run a safe operation for our crew—exposure limits are no joke, and workarounds in workplace safety can go wrong very fast. Every year, audits reveal new lessons for plant hygiene, vent recovery, and spill management.
Even the best process occasionally throws up surprises: color shifts due to side-reactions, micro-level peroxide formation, or batch-to-batch fluctuations in purity. We perform root-cause analysis and invite industrial consumers to visit the plant, sharing exactly how we run quality checks for water, aldehyde traces, and other reactive bits that downstream chemical processors usually worry about. Sometimes, we troubleshoot customer complaints by recreating their full synthesis chain, right in our lab.
On occasion, new users buy from a low-cost source and contact us after running into trouble. Poorly refined DEG introduces sticking, fouling, or even chain-scission events in polyester resin manufacture. A single percent deviation in water content, not visible to the naked eye, changes color formation in specialty paper coatings or increases corrosion in certain heat-transfer devices. We have developed a habit of full transparency with our industrial clients, lending advice based on a library of both mistakes and successes accumulated over years of operation.
Rising energy prices and fluctuating feedstock availability have changed how we think about the business. We work with purchasing teams directly, explaining how each supply disruption plays out in not only pricing but plant operations downstream. When syntheses run year-round and every day’s output matters, a single shortage or production halt can upset customer inventory models and profit margins.
We have also spent time working with end-users on technical cost-saving, such as blending our DEG with co-solvents tailored to specific polymer specifications or helping operators implement recovery and recycle systems. Some of these projects enable buyers to tolerate slightly variable impurity profiles, provided our analysis backs up consistent performance in their application.
Our plant team leads several small but steady partnerships with academic groups, aiming to discover the next generation of greener solvents or process improvements. Interest in replacing higher-toxicity materials or developing closed-loop solvent management grows every year. We see the most benefit when these collaborations reveal overlooked side-products or suggest ways to improve safety and efficiency.
As a chemical manufacturer, we often see end users assume any DEG supply suffices for their use. That does not track with what our long-term experience shows. Does it matter for a simple coolant blend if DEG falls short by a tenth of a percent in purity? Maybe not today, but over a six-month product run or in specialty applications such as surface coatings, that shortcut leads to real (not hypothetical) process flaws.
In ink manufacture, we've watched printers and packaging companies benefit from stable viscosity and slower evaporation. That edge happens only when supply remains steady, impurities are minimized, and each batch flows without clogs or residue. We’ve observed that such benefit sticks only if the manufacturer stands behind the process all the way—from raw material handling to the finished liquid in the storage tank.
Resin manufacturers exploit DEG’s lower evaporation loss compared with MEG. They can run longer, cleaner batches with fewer interruptions. Paint producers value its careful balance between hydrophilicity and organic compatibility, avoiding saponification side reactions. We pick up valuable stories from customers who depend on resin clarity, color fastness, and polymer stretch without risk of off-odor or contamination.
Each batch leaving our site owes a lot to experienced operators, on-site chemists, and junior team members alike. In regular meetings, plant staff share near-misses, minor off-spec lots, startup headaches, and best practices picked up over years. Regular training focuses on precise sampling techniques and evolving analysis protocols. Equipment sometimes needs recalibration, and our staff does not hesitate to investigate even small test anomalies.
We prefer clear, fact-based communication with supply chain partners because minor confusion over batch numbers, container labeling, or purity claims quickly snowballs. We maintain an atmosphere where anyone on the team can flag trouble, preventing costly or unsafe batches from moving forward. This hands-on, collaborative approach—born more from necessity than any trend—makes our supply more dependable and our support more relevant.
DEG, used carelessly, poses health hazards. Acute toxicity and chronic exposure can both cause harm, not only to workers but to neighbors and communities. We run closed-loop filling and decanting underneath strong local exhaust and personal protective gear. Our accidental release records stay clear because we set high standards and enforce them.
Waste management gets direct attention. DEG spills or off-spec lot disposal cannot be handled as just another industrial chore. We neutralize, segregate, and arrange approved incineration or solvent recovery. As environmental restrictions and regulatory frameworks shift, we adapt quickly—sometimes working ahead of mandates because it fits our values to minimize risk for all stakeholders.
The industry sometimes overlooks incremental process improvements that ourselves and other long-running manufacturers implement, such as improved containment systems or third-party hazard reviews. By keeping lines open between management and line operators, and inviting outside expertise, we've avoided some of the larger spills and incidents recounted elsewhere in the field.
Over the years, old uses for DEG have expanded into unexpected sectors—memorably, in electronics cooling, specialty adhesive blends, and new-generation flexible coatings. As manufacturers, we notice the early signs: small specialty orders, tech staff from novel industries calling with questions, or researchers needing analysis beyond what is on public record. Because we control production closely and understand where late-stage impurities enter, we can adapt processes quietly and efficiently for unique end-user demands.
Supporting these new uses requires time, specialization, and fluid communication. We document process changes, maintain an open channel to supply chain partners, and spend time with end-users, translating our best-practices and hard-won lessons. Unexpected issues pop up—sometimes an end user reports a new kind of reaction slowdown or points out an interaction with additives never before considered. We welcome such feedback because that makes us better suppliers and sharper process chemists.
Trust is earned batch by batch, year by year, and through honest discussion about limitations and strengths. We have built relationships with multinational bulk users and nimble startups alike, but the same pattern shows up: long-term cooperation with quick, frank troubleshooting keeps our process tuned and clients productive.
Pricing pressure and new entrants to the market mean many buyers chase short-term gains on the spot market, looking to squeeze margins. From years of experience, we know this causes headaches in specialty fields—buyer beware. Cutting corners on quality costs more downstream, and the initial price tag rarely reflects the cost of a ruined process or contaminated catalyst.
We focus on the process, but never lose sight of the people and industry networks that allow us to keep improving. Adopting technology upgrades, sharing best practices, and welcoming visits from outside auditors keep us competitive, compliant, and safe. The art of making and moving DEG doesn’t happen in isolation, and we're proud to serve the industry as a manufacturer that stands behind every drum.
