Adipic Acid
- Product Name: Adipic Acid
- Chemical Name (IUPAC): hexanedioic acid
- CAS No.: 124-04-9
- Chemical Formula: C6H10O4
- Form/Physical State: Solid
- Factroy Site: No.1788, Development Road, Ruian Economic Development Zone, Ruian, Wenzhou, Zhejiang
- Price Inquiry: sales3@ascent-chem.com
- Manufacturer: Huafon Group Co., Ltd
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- Adipic Acid is typically used in formulations when pH stability and buffering capacity and reaction temperature and moisture content must be controlled within specific ranges.
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HS Code |
995283 |
| Cas Number | 124-04-9 |
| Molecular Formula | C6H10O4 |
| Molecular Weight | 146.14 g/mol |
| Appearance | White crystalline solid |
| Melting Point | 152°C |
| Boiling Point | 337.5°C |
| Density | 1.36 g/cm3 |
| Solubility In Water | 15 g/L at 20°C |
| Odor | Odorless |
| Ph 1 Solution | 2.3 |
| Flash Point | 196°C |
| Refractive Index | 1.439 |
| Ec Number | 204-673-3 |
As an accredited Adipic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Adipic Acid is packaged in a 25 kg tightly sealed, white woven polypropylene bag with clear labeling and hazard markings. |
| Container Loading (20′ FCL) | 20′ FCL container typically loads around 22–24 metric tons of Adipic Acid, packed in 25kg bags or bulk upon request. |
| Shipping | Adipic Acid is shipped in polyethylene-lined bags, fiber drums, or bulk containers to prevent moisture absorption. It should be stored and transported in a cool, dry, well-ventilated area, away from incompatible substances. Adipic Acid is classified as non-hazardous for transportation, but appropriate labeling and documentation are required. |
| Storage | Adipic acid should be stored in a cool, dry, well-ventilated area, away from sources of heat, ignition, and incompatible substances such as strong oxidizers and bases. Containers must be tightly sealed to prevent moisture absorption and contamination. Use corrosion-resistant containers, and ensure storage areas are properly labeled. Protect from physical damage and avoid long-term exposure to humidity to prevent caking. |
| Shelf Life | Adipic acid typically has a shelf life of 2-3 years when stored in a cool, dry, and well-sealed container. |
Applications of Adipic Acid in Industrial ManufacturingAdipic acid plays a foundational role in synthetic polymer and specialty chemical production. Our manufacturing teams supply high-purity grades engineered for strict process control, supporting reliable performance in multiple downstream markets. The following application segments outline real-world use cases, regulatory adherence, technical integration, proportioning, and end-product development across key industries. 1. Polyamide 66 (Nylon 6,6) Resin SynthesisPolyamide 66 fibers and engineering plastics originate from the polycondensation of adipic acid with hexamethylenediamine. Stringent input quality and precise molar ratios ensure robust polymer molecular weight and homogeneity, critical for technical yarns and thermoplastics. Production teams maintain tight control over impurity content and granulation for direct feed into polymerization reactors. Industry compliance standards
Typical usage ratio
Downstream process integration
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2. Polyurethane Elastomer ProductionAdipic acid-derived diols and esters serve as chain extenders and soft segment building blocks in polyurethane elastomers. Manufacturers select precise molecular weights and reactivity profiles to match catalyst systems and end-use durability requirements—especially in footwear, industrial rollers, and automotive interiors. Incoming shipments require traceability to batch purity and hydrolytic stability. Industry compliance standards
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3. Plasticizer Manufacturing for PVCAdipate esters produced from adipic acid provide manufacturing plants with low-temperature resistant plasticizers for PVC and polar polymers. Di(2-ethylhexyl) adipate (DEHA) and dioctyl adipate (DOA) grades result from catalytic esterification, requiring stringent GC analysis for by-product control. Manufacturers often select adipate-based plasticizers to meet flexibility and migration resistance targets in medical and food contact applications. Industry compliance standards
Typical usage ratio
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4. Food and Beverage Acidulant (Food Additive E355)Food-grade adipic acid acts as an acidulant and gelling aid in powder drink mixes, gelatin desserts, and leavening systems. Downstream clients demand batch certificates and traceability to food purity standards, with particles or granule size tailored to ensure dissolution rates in their formulated blends. Our production units apply HACCP and FSSC 22000 protocols for specialty food batches. Industry compliance standards
Typical usage ratio
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5. Lubricant and Hydraulic Fluid Ester SynthesisAdipic acid supplies the carboxylic backbone for producing high-performance ester-based lubricants and synthetic hydraulic fluids designed for demanding industrial and transportation applications. Production managers in downstream blending units require precise titration values, low acid number, and consistent trace impurity control to guarantee stability and low-temperature viscosity. Processes optimize the reaction between selected alcohols (such as 2-ethylhexanol or trimethylolpropane) and the acid under controlled esterification. Industry compliance standards
Typical usage ratio
Downstream process integration
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6. Coatings and Resin Crosslinker ProductionManufacturers in the coatings sector utilize adipic acid in resins for powder coatings and alkyds, as well as polyester polyol production. Paint formulators specify molecular distribution and acid value to tune crosslink density, surface flow, and weathering resistance. Meeting downstream plant requirements involves rigorous batch documentation, defined trace element control, and compatibility assessment with various curing agents. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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Competitive Adipic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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- Adipic Acid is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales3@ascent-chem.com.
Adipic Acid: A Cornerstone in Modern Chemical Manufacturing
Our Direct Experience with Adipic Acid
Adipic acid runs through the core of our operations. In our manufacturing lines, we produce this white crystalline powder in large volumes and maintain a tight hold on its quality. Our teams don’t just check purity on a sheet; they work with the real material every day, monitor every lot at the bench and on the floor. When we load up a batch reactor or empty a railcar, we notice how subtle differences in process control can influence not just lab numbers but real-world performance in our customers’ products.
The process we use to make adipic acid is more than just chemistry. It starts with carefully sourced cyclohexanone and cyclohexanol. We oxidize these intermediates using nitric acid, fine-tuned for efficiency while minimizing nitrous oxide generation, a key greenhouse gas. Our team has spent years dialing in the process, improving yields and reagents to make our adipic acid both consistent and cleaner for the environment. We treat the waste streams and recover heat to power other plant areas. These aren’t just lab-scale best practices — these are real production priorities, developed through running thousands of tons of product every year.
Specifications Based on What Matters to Manufacturers
Grade, color, and purity matter most to us because they matter to our customers. Our feedstock delivers a purity consistently above 99.8%, which keeps polymerization processes predictable. Water content, particle size, and trace impurities like iron or aldehydes can throw off downstream reactions or discolor final plastics and coatings. As a direct producer, we constantly audit both the finished acid and the process intermediates.
Some buyers need large, free-flowing crystals to help with pneumatic transfer and silo storage; others want fine powders to dissolve quickly. With in-house grinding and sieving, we supply both — not relying on generic options, but actually processing the product from our own reactors and managing how it moves through a plant.
Color matters in the finished product. Impurities can lead to off-white crystals, yellowing, or even sticking issues. We guard against this by controlling process temperatures and oxygen flow. Our experience tells us: keeping the line running steady translates to batch after batch of crisp, water-bright adipic acid. That’s experience you only get making the stuff yourself.
Practical Applications: What We See in the Field
Most of the world’s adipic acid lands in polyamide 6,6 nylon production. We’ve watched customers run our product into salt formation with hexamethylenediamine, then onto polymerization and fiber spinning. This is not just chemistry from a catalog — our teams have worked with fiber makers to tune moisture levels for faster salt formation, or have implemented custom handling solutions for automated compounding.
Our product finds its way into polyurethanes for flexible foams, into coatings, and even into food-grade applications. The regulatory hurdle for food or pharma uses is higher. We stand behind our process and routinely support audits for customers who need food contact or highest-quality grades. We’ve seen how even parts-per-million organic impurities, if left unchecked, will impact the taste profiles of food acidulants or the stability of pharma formulations. These challenges aren’t theoretical to us. They cost lost material, sometimes even a whole production run. So, our QA teams keep a closer eye on these specs than any distributor ever could.
In some sectors, like plasticizers or specialty intermediates, we get called in to solve problems. If a downstream product is gelling, yellowing, or falling short on mechanical properties, we work backward, reviewing our own production data and visiting customer lines. This feedback loops right into our process controls and analytical routines.
Our Models: Where Each One Fits
Pulling from years of customer dialogues, we offer multiple models to serve specific industry needs, not just bulk purity metrics. For nylon producers scaling up, our standard grade provides purity and crystal size tuned for salt formation and subsequent polymerization. Coating and polyol users often ask for low-moisture, extra-low-iron variants — we have invested in proprietary filtration and drying equipment to meet those needs.
Food and pharma buyers run their lines to a different tune. Some days, a pharmaceutical customer calls out to us that their process is fouling after switching sources. We know this means our highest purity, with approved documentation and the backup of validated traceability from raw material to outgoing drum. We only sell these grades directly from our own production sites, because there’s no shortcut to consistent, audited product.
Our technical sales and support teams get plenty of field calls about compatibility and process tweaks. Some customers try to substitute generic adipic acid — not from manufacturers, but from brokers or traders. These often come with higher residue from nitric acid or traces of organic byproducts. In a nylon plant, even small differences tie up process lines for hours, cost extra cleaning, and show up as off-spec color in the finished polymer. Having full control from reactor to drum lets us avoid those headaches for customers and ourselves.
Differences From Other Producers’ Adipic Acid
Comparisons usually start with purity, but in our direct experience, there’s far more to the story. Some commercial adipic acid comes from processes focused solely on volume. This can work for commodity plasticizers, but the lack of focus on trace organics, color, or heavy metal reduction shows up quickly in high-spec applications.
We developed our process to go deeper: working toward the lowest possible iron and ash content draws a hard line between our products and others sourced through less tightly controlled supply chains. Instead of changing suppliers every few months, our long-term customers come see our process controls, analytical labs, and warehouse operations. They talk shop with our production managers and walk out knowing exactly where each drum came from.
Many in the market purchase from traders who blend batches from different manufacturers. Batch variation, differing moisture, or even packaging problems follow. Our difference rests on single-origin consistency. Our drums trace right back to the line operator, giving both us and our customers confidence that performance on their line will stay uniform from load to load.
Some suppliers try to compete on price alone. We stay close to our customers and hear another story — polymerization lines that stumble, color that creeps outside spec, equipment downtime. We have learned that investing in tighter specs and providing technical support saves both sides far more than any minor savings from cutting corners.
Our Commitment to Quality and the Environment
Our plant teams take direct responsibility for both the product and the impact our operation makes. We faced scrutiny on greenhouse gas emissions years before regulation demanded it. Adipic acid’s traditional process releases nitrous oxide, one of the most potent greenhouse gases in the industry. We installed abatement systems early and keep refining them. We both capture and destroy much of this emission, reducing the carbon footprint of each drum.
Customers have visited and watched our monitoring systems in action. They ask about byproducts, water usage, and waste. We open our production books to qualified partners and explain how we continually pull energy from waste heat and recycle reactor water. Adipic acid is a high-volume, global commodity, but we take local impacts seriously at each of our production sites, both for our reputation and for the long-term relationships we depend on.
Why Direct Relationships Matter in Chemicals
As actual manufacturers, we see both the complexity and real-world challenges beyond paperwork specs. Some of our customers run automated, continuous polymerization; others batch-make high-grade coatings or blend food acids. Each plant faces tight production schedules, regulatory pressures, and unpredictable raw material pricing.
Rather than trade emails through multiple layers, our production teams collaborate directly with end users and their engineers. We respond with specific batch data, technical guidance, and process advice, not canned responses. Our customer service talks with the people running the packing lines, unloading the trucks, and blending the acids. If there’s a problem with flowability or unexpected moisture, it’s our team who shows up and fixes it — not a sales agent thousands of miles away.
Our lab teams run tests using both our instruments and, in many cases, duplicate customer end-use conditions to troubleshoot. Feedback comes back to our plant, and updates to our QA protocols happen swiftly, giving us the chance to correct issues before they roll into production or shipping.
The Impact of Adipic Acid Quality on Downstream Industries
Polyamide (nylon 6,6) is our single largest downstream market, and we’ve spent years in partnership with both global and mid-tier fiber producers. They depend on the purity, color, and reactivity window of our adipic acid because off-spec material shows up immediately in fiber color, strength, and processing yield.
Technical plastics, with demanding injection molding requirements, rely on predictable crystal size so product flows and melts as intended. In foam production or plasticizer manufacture, trace levels of organics in the acid can alter reactivity or catalyst consumption.
Coating and adhesive makers report the same: one batch of off-color acid ruins a tank of pigment; over-dried crystals can create dust with health and environmental risks. These aren’t edge cases — our plant teams see what happens when spec variation hits a customer line. We work to avoid those scenarios through in-process controls and batch-by-batch release testing.
In the food and pharma space, trace mineral or organic residues can mean recalls or shelf-life failures. Our process integrates additional purification for these segments, documented to support direct filings with authorities. Unlike traders, these are not optional add-ons: they’re built into the way we produce, pack, and verify each lot headed for sensitive applications.
Real Troubleshooting: Field Cases and Solutions
Every major producer has seen customer lines go down or product drift out of spec. We have faced these cases head on. In one case, a nylon plant called in with yellowing in their polymer. Our QC line traced the iron levels in a particular batch, then ran in-lab duplications of their process with both the suspect batch and normal product. We collaborated directly with their production leads, adjusted the process parameters, and shipped replacement high-purity product while retooling our own iron filtration routines.
Another time, a coating customer faced gelling in their reactors. We worked jointly with their chemists and ran detailed GC/MS scans on both starting materials and intermediate resins. The investigation pinned the cause on tiny increases in residual cyclohexanone. We shifted our final purification schedules and added an interim wash step until the issue cleared up. Events like these have built real trust between our technical people and customer R&D — a relationship only the real producer can maintain.
On the logistics front, a large plastics user struggled with caking in their storage silos during a humid season. As their supplier, we not only changed packaging but also modified our drying and anti-caking additive regimes for the summer batches. These problem-solving efforts take place between manufacturing specialists, not through distant sales desks.
How We See the Future of Adipic Acid Manufacturing
Change is coming both from the top (global regulations and carbon mandates) and from our most discerning customers. Handling nitrous oxide emissions remains a core challenge for all large-scale adipic acid producers. We are investing in catalyst technologies and on-site abatement to stay ahead of coming rules.
Increasingly, our customers demand clear, complete transparency about sourcing and production. They want proof — visible through site audits, data logs, and traceability reports. We provide this by running digital batch records, inviting clients to view operations, and supporting their own internal sustainability reporting.
The move toward bio-based and circular chemistry is real, but commercial routes still lag in scale and price. As real manufacturers, we are running pilot lines on bio-based precursors, examining not just reaction performance but also waste streams and impact on downstream properties. These new chemistries only succeed when they fit into existing customer processes — a lesson learned through years of direct field troubleshooting and collaboration.
What Sets Our Adipic Acid Apart: Beyond Data Sheets
Any manufacturer can publish test results, but what matters is how the product performs over years, drums, and countless processing steps. We stand behind every lot not just because we track it, but because our own people have run, packed, and tested it from start to finish. Our QA claims come from field feedback loops and hands-on troubleshooting, not theoretical assurance.
For users who demand reliable, high-spec, and transparent adipic acid sourcing, working directly with a producer means more than marketing claims. It means open access to process knowledge, direct problem-solving, and a true partnership in both daily operation and future planning. From our experience running the full process, we know how far-reaching that difference can be, both for us and for every customer who puts trust in what we make.
