4-Methyl Ethylene Sulfite

    • Product Name: 4-Methyl Ethylene Sulfite
    • Chemical Name (IUPAC): 4-methyl-1,3,2-dioxathiolane 2,2-dioxide
    • CAS No.: 462-06-6
    • Chemical Formula: C3H6O3S
    • Form/Physical State: Liquid
    • Factroy Site: No.15, Daqing Road Qinglong Chemical Industry Yard, Haimen, Jiangsu Province, P.R. China
    • Price Inquiry: sales9@alchemist-chem.com
    • Manufacturer: Nantong Changhai Food Additive Co., Ltd
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    Specifications

    HS Code

    477353

    Iupac Name 4-Methyl-1,3,2-dioxathiolane 2,2-dioxide
    Cas Number 50744-67-9
    Molecular Formula C3H6O3S
    Molar Mass 122.14 g/mol
    Appearance Colorless liquid
    Boiling Point 106-110 °C (at 12 mmHg)
    Density 1.31 g/cm³
    Solubility In Water Moderate
    Refractive Index 1.456
    Flash Point 86 °C
    Smiles CC1COS(=O)(=O)O1
    Inchi InChI=1S/C3H6O3S/c1-3-2-6-7(4,5)8-3/h3H,2H2,1H3

    As an accredited 4-Methyl Ethylene Sulfite factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Application of 4-Methyl Ethylene Sulfite

    Purity 99.5%: 4-Methyl Ethylene Sulfite with purity 99.5% is used in lithium-ion battery electrolyte formulations, where it improves ionic conductivity and enhances cycle stability.

    Molecular Weight 108.13 g/mol: 4-Methyl Ethylene Sulfite with molecular weight 108.13 g/mol is used in organic synthesis as a sulfonating agent, where it enables precise functional group transformations.

    Melting Point 25°C: 4-Methyl Ethylene Sulfite with a melting point of 25°C is used in temperature-sensitive polymerization reactions, where it provides reliable phase transition during processing.

    Low Viscosity Grade: 4-Methyl Ethylene Sulfite of low viscosity grade is used as an additive in specialty lubricants, where it improves flow characteristics and reduces friction.

    Stability Temperature 120°C: 4-Methyl Ethylene Sulfite with stability up to 120°C is used in high-temperature sealant formulations, where it maintains structural integrity under thermal stress.

    Particle Size <10 μm: 4-Methyl Ethylene Sulfite with particle size below 10 μm is used in pharmaceutical intermediate production, where it ensures uniform dispersion and enhanced reactivity.

    Water Content <0.1%: 4-Methyl Ethylene Sulfite with water content less than 0.1% is used in moisture-sensitive electronics manufacturing, where it prevents hydrolytic degradation of components.

    Packing & Storage
    Packing Amber glass bottle, 100 grams, screw cap sealed, hazard labels displayed, chemical name and purity clearly marked, stored in secondary packaging.
    Container Loading (20′ FCL) 4-Methyl Ethylene Sulfite: 20′ FCL loading capacity is typically 160-180 drums (200 kg each), totaling about 32-36 metric tons.
    Shipping 4-Methyl Ethylene Sulfite should be shipped in tightly sealed containers to prevent leaks, stored in cool, dry, well-ventilated conditions away from heat and ignition sources. Follow all applicable hazardous materials regulations. Proper labeling and documentation are required to ensure safe handling during transit. Avoid incompatible substances and physical damage during shipping.
    Storage 4-Methyl Ethylene Sulfite should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible materials such as strong acids, bases, and oxidizing agents. Keep the storage area away from heat or open flames, and ensure proper labeling. Avoid exposure to moisture and direct sunlight. Use secondary containment to prevent accidental leakage or spills.
    Shelf Life 4-Methyl Ethylene Sulfite typically has a shelf life of 12-24 months when stored in a cool, dry, and sealed container.
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    More Introduction

    Understanding 4-Methyl Ethylene Sulfite From the Manufacturer’s Perspective

    A Closer Look at 4-Methyl Ethylene Sulfite: Field Experience and Application Realities

    People working in chemical manufacturing facilities often get to know a product far beyond what any glossy brochure or datasheet can capture. On the production floor and in the application labs, 4-Methyl Ethylene Sulfite reveals its full personality—the kinds of behaviors that influence daily operations, safety standards, customer requests, and outcomes in the field. With every batch, we see not just an inventory item, but a compound whose properties can make or break the efficiency of key industrial reactions.

    4-Methyl Ethylene Sulfite, known to those in synthesis as 1,3,2-dioxathiolane, 2-oxide, 4-methyl-, brings its own set of characteristics that distinguish it from a wide array of related cyclic sulfites and carbonates. We weigh, blend, distill, and purify this compound in environments tailored for exceptional material control, always keen to avoid trace impurities that might undermine its end function. For reference, the model often requested by customers follows tight specifications—most prefer high assay, colorless liquid material in drum lots, or stainless steel totes for larger scale integration. Purity consistently hovers above 99 percent, with sulfur and organic residue profiles holding to low-percentage thresholds thanks to vigilant process monitoring.

    The Nuances of Manufacturing: From Raw Material to Finished Compound

    In daily practice, we prioritize sourcing methyl-based starting materials of consistent quality, usually derived from high-grade petrochemicals. Every incoming shipment undergoes full-spectrum analysis using mass spectrometry and NMR, as even minor deviations can result in unpredictable reactivity in customer processes. Hydrolysis, charring, and even subtle odor shifts during storage tell us more about a supplier’s attention to detail than any shipment certificate.

    Batch synthesis of 4-Methyl Ethylene Sulfite calls for controlled temperature cycling, nitrogen blanketing, and rigorous agitation. We maintain a strictly oxygen-free atmosphere to prevent unwanted side reactions. Timing means everything: a few extra minutes or a degree or two off can introduce unwanted byproducts that turn up as yellowing or haze. Every shift operator on our floor knows that quality is more than a value on a test report—it’s an outcome built into each step of production and packaging.

    Key Applications: Where Performance Outpaces Substitutes

    There’s steady demand for 4-Methyl Ethylene Sulfite in battery electrolyte formulations, as well as in lab-scale organic synthesis where subtle reactivity changes can make the difference between commercial success and project failure. Laboratories and pilot facilities want clear, reliable liquid that doesn’t deposit residues, and in larger operations where safety is paramount, trace impurity data takes center stage.

    Our experience tells us that 4-Methyl Ethylene Sulfite offers faster reaction kinetics in sulfonation and alkylation reactions compared to its close analogs. The methyl group attached at the fourth carbon atom seems to enhance nucleophilic substitution without introducing excessive side-product formation—a property our research chemists consistently see in project after project. Beyond theoretical talk, the upshot is less downtime from column clogging, smoother product isolation, and fewer headaches with downstream purification.

    Producers of performance lithium batteries have moved toward this compound for novel salt-dissolution processes, especially with next-generation high-energy-density cells. Unlike some ethylene sulfites, the methyl-substituted variant presents a more predictable viscosity profile across working temperatures, reducing performance drift as a result of environmental exposure. In coatings research, technicians notice sharper end points in polymer-modification reactions—saving both time and expensive catalyst charges.

    Observations From the Production Line

    We have handled plenty of materials whose technical sheets promise much and deliver little. With 4-Methyl Ethylene Sulfite, the test is always in regular operations. Unexpected downtime often traces back to trace moisture contamination, so we invest heavily in process dryers and closed-loop handling. Shipping teams double-seal containers and monitor for condensation on drum lids. Integrity of product during transport and storage means customers avoid the costly early stage degradation sometimes seen with ordinary ethylene sulfite.

    Over the years, customers in Japan and South Korea have placed high premium on color stability during long-term storage. UV exposure and temperatures above 35 degrees Celsius trigger polymeric byproduct formation if the process steps aren’t airtight. We recently overhauled part of our packaging line to limit light-transmissive materials—resulting in product that maintains water-white appearance and purity for over twelve months in typical warehouse conditions. Such operational changes stem directly from frontline feedback and lessons that were paid for in wasted drums and lost customer relationships.

    Comparing Practices: How 4-Methyl Differs From Alternatives

    Traditional ethylene sulfites, lacking a methyl group, show higher volatility and more reactivity in the wrong spots. Laboratory teams report more tendency for unplanned side reactions that complicate synthesis. Storage operations also benefit from the lower evaporation rate of the methyl variant—drums last longer, handling losses shrink, and less stringent vapor controls are required.

    With every product, the differences show up most clearly with returning customers. Researchers who built a process around classic ethylene sulfite often talk about solvent compatibility issues; with the methyl-substituted type, these concerns drop away. Less water pickup and lower contamination rates translate directly to higher yields and less discarded batches.

    Stability in the supply chain matters as much as any technical metric. Shipping times from our factories in Asia and Europe rarely cause quality loss—thanks to robust stabilizers added during final processing. We’ve responded to repeated customer observations about shelf life by tuning both inhibitor systems and drum venting methods, so field operators open containers to the same product six months on as day of shipment.

    Voices From Downstream Operations

    Feedback from end-users shapes our work on the production side. Battery researchers comment on the finer control over film formation and a notable drop in electrode fouling events. Paint formulators point out less gassing and smoother finish due to the reactivity window provided by 4-Methyl Ethylene Sulfite. Even small pharmaceutical labs, where budgets for waste and downtime run thin, give credit to the methyl variant for trimming hours off purification steps.

    Our tech service staff have visited many customer sites where alternative cyclic sulfites triggered concerns over operator safety, odor, or unexpected residue buildup. Experience says that the more predictable toxicity and controlled offgassing profile make the methyl-substituted compound easier to integrate in enclosed workspaces. It’s one thing to read this on paper, quite another to breathe easier over a season of plant runs.

    Years of working near the reactors have taught us that front-line technicians value process reliability above all. Inconsistent feedstock characteristics wreak havoc on production scheduling. With every tote of 4-Methyl Ethylene Sulfite delivered, we know traceability and purity certificates are scanned more than any promotions or spec claims. Our operations team knows every off-standard drum means more than a deduction on a balance sheet—it means extended downtime, frustrated chemists, and real-world cost.

    Product Handling: Lessons From the Floor

    Our teams emphasize meticulous isolation, since contamination events unfold fast and hit across far more than one batch. Closed-system filtration, redundant nitrogen purging, and container flush cycles give us the repeatability customers require. Quality doesn’t arise from aspiration—it’s forced into every shipment through real-time sensor readings and hand-logged process checks.

    Storage and shipping crews regularly inspect packaging integrity. Cases of drum expansion under variable outdoor crate storage are rare, but not unknown. Heat stress can introduce minor quantities of dimers, which aren’t visible to the naked eye but turn up on downstream analytics. Such events prompt us to work with shippers and warehouses to keep material in temperature-controlled zones, and flag loads for prioritized delivery in heat waves.

    Environmental Considerations and Responsible Disposal

    4-Methyl Ethylene Sulfite doesn’t linger in the environment like some sulfur-containing solvent byproducts, but any release demands quick clean-up. Spill protocols rely on experienced site managers able to contain and neutralize with minimal fuss. Our responsibility doesn’t end at the plant fence—teams regularly engage with waste processors to ensure byproducts end up correctly neutralized or incinerated.

    Material compatibility audits extend to every step: drum linings, transfer hoses, and even labeling adhesives get reviewed when customers report residue or leaching events. These may seem minor, but over a year, even a single failed gasket or erroneous solvent interaction can cost thousands in lost compound or reputational damage.

    Consistency: The Hidden Battlefield

    Any technologist can deliver a passable sample batch with the right controls and plenty of time. Real mastery shows up in incremental improvements over thousands of production cycles. We log every deviation, share findings across teams, and incorporate field-driven tweaks—some as minor as raising a jacket temperature, changing a filter mesh, or switching a drum liner supplier based on feedback from unloading crews.

    Past years saw us sorting through customer feedback from solvent recovery teams who handle byproduct streams. They flagged distinct patterns of residue management success with methyl-substituted ethylene sulfite compared to other cyclic sulfites. Their input prompted us to enhance purification steps and document byproduct trends for customers who want to maximize downstream recovery.

    For large-scale buyers, we work closely on multi-site pilot projects, tracking not just purity but consistency in reactivity, color, and viscosity. Direct collaboration helps us catch those hidden issues that only surface after a few hundred cycles—the slow drifts in reactivity that a smaller operator might miss, but that can derail a high-speed industrial setup.

    Real-World Challenges and Practical Solutions

    One challenge that comes up again and again involves long-distance shipping, especially seaborne containers subject to both heat and humidity swings. We regularly reassess desiccant strategies and revise drum venting to minimize ingress during months-long sea voyages. Experience from a Singapore shipment prompted us to modify the size and placement of pressure relief devices—our team learned firsthand how a single pressure spike could compromise entire container lots.

    Another recurring issue relates to inconsistent feedstock across global supply networks. Facilities in Europe work off a different baseline than those in Asia, given variances in precursor grades and plant infrastructure. We built in additional real-time spectral analysis on incoming raw materials, so we catch deviations before they cascade into batches large enough to disrupt customer supply chains.

    Efforts to reduce environmental impact led to the phase-out of certain stabilizers and inhibitors previously standard in ethylene sulfite production. Substituting alternatives took time and multiple pilot runs, but produced a lower environmental footprint and fewer regulatory headaches for customers at the point of use. These investments don’t always pop up in unit pricing, but they pay dividends over years of reliable operation and easier product stewardship.

    Why Users Stick With 4-Methyl Ethylene Sulfite

    Seasoned chemists often bring feedback straight from their bench or process line. Some flag fractional differences in kinetics, others note months-long color stability, and a few just want fewer operator concerns from volatility and odor. We rarely hear complaints over the core properties—most improvement discussions focus on faster tank turnovers, easier hose flushing, or less gunk in drainage ditches.

    Process engineers at battery plants care most about the outcomes that affect their bottom line. Higher yields and fewer shutdowns matter more than any marketing bullet point. For them, 4-Methyl Ethylene Sulfite unlocks higher cycle stability in electrodes and keeps impurities from triggering rapid decay or dendrite growth. In paints, the methyl group tempers volatility and sharpens consistency in polymer scaffolding.

    Plenty of manufacturers have tried swaps to cheaper or more available compounds, but revert after control runs turn up headaches—lost overnight batches, unpredictable residues, or field failures traced back to subtle impurity spikes. We’ve seen attempts to use classic ethylene sulfite produce a raft of corrective actions, extra filtering, and sometimes whole drums destined for disposal. Handling nuances and performance metrics—learned across years of relationship-building—keep users coming back to the methyl-substituted choice.

    Looking Forward: Evolving with User Demands

    Our product development teams never stand still. Every new request—be it for a smaller container, different drum lining, or tighter spec—feeds into a cycle of lab-scale trials, pilot-scale test runs, and careful integration into regular production. We track global trends in new battery chemistries and green chemistry mandates, not out of fashion but because each wave brings operational tweaks and new expectations for purity, containment, and process safety.

    We work closely with academic partners, tracking research projects and scaling up successful lab results to full production. The focus shifts constantly—from battery modification to fine chemicals, from adhesive curing to specialty coatings. Our flexibility and history with 4-Methyl Ethylene Sulfite give users confidence that we can handle complexity as requirements evolve.

    In a business where a single contaminated load costs more than weeks’ worth of margins, frontline experience, meticulous process control, and constant communication with end-users shape every liter we ship. Most users care less about who won a patent battle or which spec is on paper. It comes down to what fills their tanks, passes their purity screens, and drives their business forward without surprises. Consistent quality—with traceable, documented origins—remains the foundation on which we build relationships and repeat business around 4-Methyl Ethylene Sulfite.

    Building Trust Through Experience

    Those of us making and shipping 4-Methyl Ethylene Sulfite carry decades’ worth of stories about spot market turbulence, regulatory shifts, and shifts in customer technology. Through all this, real trust forms not by promising, but delivering repeatable results. Operators on our lines treat every shipment as if it might get randomly sampled, because often it does—by both end-users and regulators. Precise calibration, strong internal standards, and a culture of transparency turn challenges into opportunities for learning and improvement.

    No shortcut replaces hands-on, in-the-field experience, collaborative troubleshooting with users, and relentless dedication to incremental improvement. This approach—reinforced by hard lessons, rigorous science, and careful listening—defines what makes our 4-Methyl Ethylene Sulfite a cornerstone material for industries focused on high performance, reliability, and safety.