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Methacrylic Anhydride

    • Product Name Methacrylic Anhydride
    • Chemical Name (IUPAC) 2-methylprop-2-enoic anhydride
    • CAS No. 760-93-0
    • Chemical Formula C8H10O3
    • Form/Physical State Liquid
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    812319

    Chemicalname Methacrylic Anhydride
    Casnumber 760-93-0
    Molecularformula C8H10O3
    Molecularweight 154.16 g/mol
    Appearance Colorless to pale yellow liquid
    Boilingpoint 116 °C at 13 mmHg
    Meltingpoint -6 °C
    Density 1.029 g/cm³ at 25 °C
    Refractiveindex 1.471 at 20 °C
    Solubility Reacts with water
    Flashpoint 92 °C
    Odor Characteristic, acrid
    Purity Typically ≥98%
    Vaporpressure 0.24 mmHg at 25 °C
    Storage Keep tightly closed in a cool, dry, and well-ventilated place

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

    Packing & Storage
    Packing Methacrylic Anhydride is packaged in a 500 mL amber glass bottle with a secure cap, featuring proper hazard labeling and safety warnings.
    Container Loading (20′ FCL) Container Loading (20′ FCL): Methacrylic Anhydride is typically packed in 200 kg drums, totaling approximately 80 drums (16 metric tons) per container.
    Shipping Methacrylic Anhydride should be shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. It must be handled as a hazardous material, classified as a flammable liquid and corrosive substance, under UN 2929. Ensure proper labeling and documentation, and follow relevant regulations for transportation by road, air, or sea.
    Storage Methacrylic Anhydride should be stored in a cool, dry, and well-ventilated area, away from moisture, heat, ignition sources, and incompatible materials such as strong acids and bases. It must be kept in tightly closed containers made of materials resistant to corrosion, preferably glass or specific plastics. The storage area should be equipped with spill containment and clearly labeled for hazardous chemicals.
    Shelf Life Methacrylic Anhydride typically has a shelf life of 12 months when stored unopened, in a cool, dry, and well-ventilated area.
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    Certification & Compliance
    More Introduction

    Methacrylic Anhydride: Reliable Component for Advanced Polymer Synthesis

    Introduction to Methacrylic Anhydride

    We’ve produced methacrylic anhydride for years, and every batch brings its own lessons about consistency, purity, and usability. This compound—known by its chemical identity as 2-methylpropenoic anhydride—draws attention from specialty polymer manufacturers, adhesives developers, and coatings formulators. Within our facility, each production run starts with high-grade raw materials and controlled synthesis routes to yield a product that remains transparent, colorless, and free-flowing. The practical value comes not just from its methacrylate content but also in the predictability it offers in chemical reactions—yielding results customers expect, job after job.

    Product Attributes and Model Range

    Our core model, consistent with the demands of fine chemicals and performance polymers, typically reaches purity levels above 99%. Achieving this grade takes more than strict distillation; it demands vigilant control of moisture content and trace contaminants. Water content consistently measures below 0.05%, favoring polymerization control. Our plant lasers in on temperature and vacuum levels day and night, since even minor lapses can generate unwanted polymer or residual acids. This hands-on approach separates crude methacrylic streams from our high-grade anhydride.

    Methacrylic anhydride arrives at our loading docks in sealed, lined drums and intermediate bulk containers, ranging from 25 kg up to 800 kg per IBC. Each container passes a final QC check for acid value, color index, and purity before warehouse teams release it for shipment. While some customers ask about grades or model variants, every order receives the same traceability, date codes, and batch records—an ongoing chain of custody that supports quality audits and regulatory needs.

    Application in Polymer Synthesis and Industrial Processing

    Methacrylic anhydride has carved out a following in certain sectors, notably where functional group introduction matters. We hear from chemists working in research labs and plant engineers on rollouts of new copolymer formulations. This molecule often becomes a key link when grafting methacrylate functionality onto specialty polymers, especially in acrylate-modified adhesives, ion-exchange resins, and engineering plastics. Unlike methacrylic acid alone, the anhydride form reacts more efficiently with hydroxyl and amine groups, creating cleaner, higher-yield intermediates.

    Paint and coatings formulators know methacrylic anhydride’s value for customizing crosslinking behavior and hardness. We’ve supported R&D teams seeking more UV resistance or greater weatherability for outdoor applications. In every case, the ingredient needs rigorous handling—those working with it understand sensitivity to ambient moisture, so everything from transfer lines to storage tanks comes under scrutiny. We supply instructions drawn from our own experiences to ensure the product stays dry and stable.

    Why Methacrylic Anhydride Matters in Modern Manufacturing

    Our own utility crews and shift chemists recognize how this anhydride has extended process possibilities. It can substitute for acyl chlorides or acid solutions without some of the corrosion hazards and reactivity spikes associated with other acylation reagents. Formulators have leaned on its lower release of secondary byproducts, which leads to smoother downstream processing. In our operation, we see less equipment fouling compared to alternatives using methacryloyl chloride or high-strength acids.

    For custom monomer syntheses—such as tailoring functionality into dental resins, medical device coatings, or high-performance composites—methacrylic anhydride introduces methacrylate groups with better site specificity. This means higher conversion rates in both lab and production environments and less material wasted. We find that, for teams balancing total cost of ownership and finished product performance, using the anhydride eliminates several process steps or cuts down on purification cycles.

    Specifications and Handling from a Manufacturer’s Eye

    Every facility that tries to use methacrylic anhydride as a “drop-in” replacement for more familiar acid counterparts experiences a learning curve. Our own startup teams recall how control points around temperature, pressure, and bulk handling gear needed tight discipline. The product’s volatility and sensitivity demand more robust seals and nitrogen blanketing, but the effort pays off in higher assay and less need for repeat syntheses. In the plant, drums stay under positive pressure. Operators wear full PPE, taking no shortcuts—good habits that preserve yield and safety.

    As for technical benchmarks, we target minimal acid impurities, color values below APHA 20, and consistent batch-to-batch performance. This focus has improved our customers’ product lifecycles and reduced reprocessing. Customers also appreciate that our analytical support covers not just COA data but real-world troubleshooting. When a chemical engineer hits a bottleneck scaling a reaction, our lab teams run real reaction simulations to advise on best procedures or possible alternatives.

    How Methacrylic Anhydride Sets Itself Apart

    A direct comparison to acid chlorides or pure methacrylic acid shows tangible differences. Methacrylic anhydride brings less corrosivity and fume generation, so lower-cost gaskets and valves continue to perform year after year. We’ve seen contractors swap out steel lines for corrosion-resistant pipework, then later realize that running anhydride reduces maintenance cycles and shutdown frequency.

    Methacrylic acid can provide some of the basic reactivity, but for applications where targeted functional group introduction and minimized water byproduct matter, the anhydride matches better. Polyol-modified resins, sophisticated adhesives, and engineered plastics often demand this precision. Beyond process yield, switching to methacrylic anhydride shortens the purification train. On our site, wastewater loads drop, and less off-gas scrubbing gets required compared to other acyl donors.

    Some buyers ask about the safety profile. Methacrylic anhydride remains a hazardous chemical, so each batch ships with full hazard labeling and driver training. We design our containers and loading areas to minimize worker contact, and our SOPs—written from years of handling—cover worst-case exposures. We push this information downstream, so nobody using our product is caught off guard by its reactivity.

    Challenges in Manufacturing and Distribution—A Firsthand Perspective

    Our synthesis teams see how small changes in raw methacrylic acid feedstock quality can impact final anhydride. Impurities in the feed, off-spec temperature control, or delays in vacuum application shift the entire process. To solve this, line engineers audit supply lots and batch cycles frequently, rejecting any feed showing side-products like methacrolein or excessive water. By keeping inventory of raw materials carefully rotated and documented, we avoid the “bad batch” scenario.

    Transport and national regulation weigh heavily too. Methacrylic anhydride sits within transport classes requiring placarding and special driver awareness. Our in-house logistics group works with certified partners, tracking environmental rules and preparing spill containment protocols. We refuse to ship product unless we know the end user has suitable unloading facilities and environmental permits. This chain of care, from synthesis to receiver’s dock, keeps both our record and our customers’ operations trouble-free.

    Use Cases Drawn from Field Experience

    A major adhesives customer moved to methacrylic anhydride looking for cleaner functionalization of polyurethane systems. Their production throughput rose after switching from acid chloride, and their solvent loads dropped by more than 8% in the first year. This came not from abstract process theory but careful pre-trials at their site, jointly evaluated with our chemists.

    Another plastics manufacturer worked with us to graft methacrylate groups onto a specialty polyester, seeking improved compatibility for UV-cured automotive coatings. Their in-house team learned quickly that storage tanks needed re-sealing to manage product volatility, but the outcome justified the effort. Their cured coatings resisted yellowing and surface cracking in accelerated aging tests, outperforming systems based on acid-only approaches.

    Some research facilities favor methacrylic anhydride for custom monomer synthesis. Feedback from universities often revolves around its utility in modifying biopolymers or developing hydrogels. In our experience, most academic teams use only small lots, but they rely heavily on our analytical backstopping—including GC and impurity profiling—so their results hold up under peer review.

    Environmental Concerns and Solutions in Production

    Streamlining methacrylic anhydride output meant reworking ventilation and emission controls throughout our plant. Our environmental crew replaced open transfers with closed-loop loading, using vapor capture systems across the process. Scrubbers handle vented fumes; condensers re-capture most process losses. In the wastewater area, we built separation steps for any backwash or drum cleaning, reducing discharge loads.

    Raw material procurement requires traceability and evaluation for “greener” feedstocks. To date, most methacrylic anhydride derives from fossil-based methacrylic acid, but our group has piloted work with bio-derived acid, measuring process changes and yield differences. While current scale remains modest, such projects keep us ready for regulatory or market-driven turnarounds.

    Workplace Safety and Ongoing Training

    Methacrylic anhydride’s volatility and irritancy demand thorough safety culture. Our operators train with hands-on simulators, reviewing actual incidents and containment tactics. Every new team member shadows a veteran through drum filling, sampling, and cleanup procedures. Accidental exposure—eye or skin—means immediate response, and our safety squad drills regularly on eyewash and spill-kit use.

    Supervisors rotate safety walkthroughs, check PPE stock, and monitor air quality. Documentation matters; our in-house trainers keep records not just for compliance but for identifying near-miss trends and plugging gaps fast. We conduct annual emergency drills simulating transfer leaks, ensuring that both visitors and regular floor crews know the stakes.

    Customer Support and Technical Partnership

    For buyers using methacrylic anhydride in semi-batch reactors, our technical support means more than a hotline. Our staff follow each order from paperwork through delivery, monitoring for seasonal issues—especially in humid months or during supply chain disruptions. If a customer runs into persistent clogs, foaming, or color drift, our own plant chemists dissect the case, using their experience to pinpoint how mechanical and chemical factors interact.

    Labs working at milligram scale get as much attention as industrial mixers. We run comparative reactivity tests and analyze side-product generation, offering guidance that draws on common troubleshooting from our own batch records. Our aim remains the same: keep customer processes online, minimize downtime, and build trust that extends beyond transaction.

    Differences From Related Chemicals—Practical Impact on Production

    Methacrylic acid shares the base structure, yet forms water during acylation, complicating end-stage purification. For those manufacturing water-sensitive UV-curable resins or pharmaceuticals, the difference shows up in final assay and shelf-life. Methacryloyl chloride, another cousin, triggers more stringent corrosion protection, demands extra ventilation, and generates excess waste acid. Over time, we’ve watched many customers chart the cost of these knock-on expenses—wastewater treatment, resin filtration, corrosion maintenance—and pivot to the more predictable profile of anhydride.

    Rarely does a switch between acylating agents happen without process revalidation and investment, but the reduction in side-reactions or off-odors often makes the transition worthwhile. It helps that methacrylic anhydride stores without generating noxious byproducts, stays stable sealed under nitrogen, and unloads without spike emissions. That’s valuable both for floor crews and for neighbors near production plants.

    Handling guidelines reflect the differences too. Anhydride reacts quickly with water, so every joint and gasket gets checked before transfer. Staff training focuses on chemical hygiene habits—moving from “good enough” to “best possible,” since simple slipups escalate with this class of chemicals.

    Market Trends and Future Directions

    In discussions with downstream users, we hear ongoing demand to reduce emissions and seek circular economy solutions. This shapes our sourcing and continuous improvement. Some multinational customers ask for lifecycle assessment data, challenging our supply chain transparency and pushing us to test low-carbon feedstock options. The shift to “greener” chemistry isn’t without hurdles. It impacts everything from catalyst longevity to batch contamination risk. Still, our R&D department logs every trial, learning from both setbacks and breakthroughs.

    Additive manufacturers and 3D-printing resin developers have joined traditional plastics and coatings users, experimenting with methacrylic anhydride to build novel rapid-curing systems. Medical device and biosensor industries push for ever-tighter impurity controls and greater documentation. These pressures prompt us to revisit every facet of production: from bulk storage, traceability records, to in-plant reaction quenching. We keep channels open with customers, partners, and regulators—the only way to stay relevant as the industry evolves.

    Conclusion: Manufacturer’s Reflective View

    Decades of experience with methacrylic anhydride have shaped not just our process controls but our relationships with those creating the next generation of polymers and materials. Returning customers cite the stability of our supply and the candid advice we give during trial or troubleshooting. Staying at the forefront of quality, safety, and innovation takes attention to detail from plant floor to boardroom. From how we analyze raw materials, to how we handle emergencies, to how we partner with R&D labs—we approach methacrylic anhydride with the respect earned from hands-on production.