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Octadecyl Isocyanate

    • Product Name Octadecyl Isocyanate
    • Alias n-Octadecyl isocyanate
    • Einecs 240-018-9
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    866675

    Chemical Name Octadecyl Isocyanate
    Molecular Formula C19H37NO
    Molar Mass 295.50 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 396 °C (approximate)
    Melting Point 33-36 °C
    Density 0.85 g/cm3 (at 20 °C)
    Solubility Insoluble in water
    Cas Number 3173-17-9
    Refractive Index 1.458 (at 20 °C)
    Flash Point 210 °C
    Odor Characteristic, pungent

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

    Packing & Storage
    Packing 250g amber glass bottle with secure screw cap, labeled “Octadecyl Isocyanate”; hazard warnings, chemical formula, and supplier information displayed clearly.
    Shipping Octadecyl Isocyanate should be shipped in tightly sealed, chemical-resistant containers under cool, dry, and well-ventilated conditions. It must be handled as a hazardous material, kept away from moisture, heat, and incompatible substances. Appropriate labeling and documentation per regulatory guidelines (such as DOT, IATA, or IMDG) are essential to ensure safe transport.
    Storage Octadecyl isocyanate should be stored in a cool, dry, and well-ventilated area, away from heat, moisture, and incompatible substances such as strong acids, bases, and oxidizers. Keep the container tightly closed and protected from light. Store under inert atmosphere, such as nitrogen, to prevent hydrolysis. Use appropriate chemical-resistant containers, and ensure proper labeling to avoid accidental exposure or misuse.
    Application of Octadecyl Isocyanate

    Applications of Octadecyl Isocyanate in Industrial Manufacturing

    Octadecyl isocyanate is a specialty monofunctional isocyanate widely adopted in downstream industrial fields where controlled surface characteristics, tailored polymer modifications, and specialized performance markers are essential. As a direct manufacturer, we support industry partners by supplying high-purity grades specifically designed for integration into precise industrial processes, enabling reproducibility and compliance with sector-specific regulations.

    1. Reactive Surface Treatment Agents for Silica and Inorganic Fillers

    Many rubber and plastic compounders utilize octadecyl isocyanate to chemically graft long-chain alkyl groups onto silica or metal oxide fillers, significantly improving hydrophobicity and dispersion in organic matrices. Downstream users require tight control over dosing and grafting conditions to achieve reliable reinforcement, reduced agglomeration, and enhanced mechanical properties in high-performance elastomers and engineering plastics. Regulatory expectations also define safe and repeatable use of organosilane/isocyanate-modified solids in automotive and consumer applications.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006
    • ISO 9001:2015 certified production systems
    • Automotive OEM approved chemical substance listings
    • Chinese GB 4806 food contact compliance for selected polymer grades

    Typical usage ratio

    • 0.5% – 2.5% by weight of total inorganic filler content, adjusted based on specific filler surface area and target hydrophobization degree

    Downstream process integration

    • In situ addition during filler pre-treatment step before compounding, typically via high-shear mixing or fluidized bed reactors under controlled humidity and temperature

    Final product types

    • Low-rolling-resistance tire treads
    • Polyolefin films and containers with enhanced barrier properties
    • Thermoplastic elastomer automotive parts
    • Epoxy composite prepregs

    2. Hydrophobic Coatings for Cellulose-Based Materials

    Specialty paper, packaging, and filtration material manufacturers use octadecyl isocyanate to modify cellulose fibers, producing durable, water-repellent surfaces with minimal impact on substrate strength and porosity. Chemical grafting boosts resistance to liquid penetration and mechanical wear, crucial for industrial packaging and technical paper used in demanding environments. Integration must align with regulatory and food safety frameworks relevant to the specific end-use sector.

    Industry compliance standards

    • FDA 21 CFR 176.170 for paper and paperboard in contact with aqueous and fatty foods
    • BfR XXXVI Recommendations for paper and board (Germany)
    • ISO 22000:2018 food safety management for packaging materials
    • ISO 12625-1:2019 for tissue paper

    Typical usage ratio

    • 0.2% – 1.0% by weight based on dry pulp mass, with exact levels tuned for target contact angle and application endurance

    Downstream process integration

    • Surface application via size press or controlled spray during or after wet-end papermaking; occasionally introduced in pulp slurry before sheet formation

    Final product types

    • Greaseproof food wrappers
    • Oil-resistant paperboard trays
    • Technical filter papers
    • Wax-free wet-strength packaging papers

    3. Additive for Polyurethane Synthesis (Chain Termination and Surface Modulation)

    Producers of high-performance polyurethanes introduce octadecyl isocyanate as a monofunctional chain stopper or modifying agent during the prepolymer stage or final polymerization. The long C18 alkyl chain imparts significant hydrophobicity and controlled flexibility while limiting network crosslinking, leading to engineered surface slip, tailored adhesion, and compatibility for specific end-use environments. Strict process control and conformity to manufacturing and environmental regulations guide its use.

    Industry compliance standards

    • ISO 9001:2015 for quality management in chemical production
    • European Toy Safety Directive 2009/48/EC for toys and children's articles
    • US EPA TSCA (Toxic Substances Control Act) compliance for polymer components
    • GMP EU 2023/2006 for medical polyurethane applications

    Typical usage ratio

    • 0.1% – 2.0% relative to total isocyanate content, depending on target molecular weight, flexibility, and end-use regulatory requirements

    Downstream process integration

    • Direct addition to isocyanate blend during prepolymer synthesis, or post-polymerization modification for surface or soft-segment tuning

    Final product types

    • Self-lubricating polyurethane foams
    • Antifouling PU coatings
    • Flexible cushioning for automotive and medical sectors
    • Adhesive transfer tapes

    4. Surface Functionalization for Advanced Electronic Materials

    Manufacturers of specialty electronic substrates apply octadecyl isocyanate in controlled monolayer formation on oxide or silicon-based surfaces to tailor wettability, dielectric properties, and surface insulation. This step is key in fabricating substrates for printed electronics, sensor technology, and high-frequency applications. Maintaining traceability, cleanroom protocol, and stringent industry standards is mandatory in this high-value field.

    Industry compliance standards

    • IEC 60194-2:2020 for printed circuit board base materials
    • IPC-4101D for laminate and prepreg requirements
    • ISO 14644 cleanroom standards for microelectronics manufacturing
    • RoHS Directive 2011/65/EU for hazardous substances

    Typical usage ratio

    • 0.05 – 0.15 mg/m2 as molecular monolayer deposition, optimized to achieve target contact angle and minimize surface energy without excess residue

    Downstream process integration

    • Vapor-phase or solution deposition onto cleaned wafer or substrate surface, followed by thermal or UV curing as needed

    Final product types

    • Flexible electronic circuits (FPCBs)
    • Sensor substrates
    • Low-k dielectric layers in semiconductor devices
    • Optical thin films for display technology

    5. Lubricity-Enhancing Modifier in Hot-Melt Adhesives

    Producers of technical hot-melt adhesives in automotive, consumer, and electronics applications utilize octadecyl isocyanate to reduce tack, increase surface slip, and prevent blocking. These effects rely on its ability to migrate to the polymer surface after curing, imparting a non-stick, slightly lubricated interface tailored for precise assembly lines and automated handling. Compliance with industry and consumer safety frameworks shapes application boundaries.

    Industry compliance standards

    • FDA 21 CFR 175.105 for adhesives in food packaging
    • EN 923:2005 for adhesive terminology and requirements
    • ISO 14001 for environmental management of adhesive formulation facilities
    • REACH Annex XVII for substance restrictions

    Typical usage ratio

    • 0.2% – 0.6% of total polymer solids, refined based on desired balance between tack retention and surface slip

    Downstream process integration

    • Incorporation during internal mixing phase of adhesive compound preparation, with temperature and shear rates tightly monitored to prevent premature reaction

    Final product types

    • Peelable automotive trim adhesives
    • Electronics assembly tapes
    • Easy-release labels and liners
    • Low-block packaging sealants
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    Certification & Compliance
    More Introduction

    Octadecyl Isocyanate: In-Depth Insights from the Manufacturer’s Floor

    Understanding Octadecyl Isocyanate From the Source

    Octadecyl Isocyanate often draws attention in specialty chemical manufacturing due to its unique combination of a long-chain alkyl group and a reactive isocyanate head. We make this molecule through a carefully controlled process, where precision and experience both drive the consistency and purity of the finished product. Over the years, our floor teams have learned that mastering the nuances of this synthesis calls for more than following formulas. Judging reaction kinetics, observing impurity profiles, and responding to subtle color or viscosity changes prove crucial. Each batch reflects our hands-on process know-how, and we see the differences—both major and minor—from similar isocyanates on a chemical level and in final application performance.

    Real Specifications, Not Just Numbers

    Many synthetic chemists expect high-purity grades, sometimes above 98%, and water content below 0.1%. These aren’t just numbers on paper to us. They come from first-hand challenges: avoiding hydrolysis, preventing undesired urea formation, and keeping storage conditions dry. Our teams constantly make micro-adjustments as small atmospheric shifts or slight oil contamination at any stage can set off unwanted side reactions. By overseeing every step, from the initial alcohol raw material to the final packed drum, we ensure Octadecyl Isocyanate leaves our plant with the characteristics our partners trust, especially in the demanding world of performance chemicals.

    How Octadecyl Isocyanate Sets Itself Apart

    People sometimes compare Octadecyl Isocyanate to its shorter-chain cousins, such as dodecyl or hexadecyl isocyanates. Through years of side-by-side trials, we’ve seen Octadecyl’s distinct C18 tail deliver pronounced hydrophobization. Surfaces treated with this product hold up under humidity, oil, and grime much longer. This enhanced barrier comes directly from the molecular structure: longer alkyl chains improve packing and surface coverage, vital for anti-corrosion coatings, hydrophobic textiles, and electronic component encapsulation.

    Colleagues in materials science often bring us new challenges. Recently, one team in fiber reinforcement needed a bond that would endure repeated flexing and weather cycles. In side-by-side testing against analogous isocyanates, only the octadecyl derivative kept fibers dry and intact after months of sun, rain, and abrasion. The molecule’s C18 tail delivers more than just water repellency. It offers long-term chemical stability, an essential parameter downstream users often underestimate, until failures in the field highlight significant differences in chain length.

    Why Specifications and Handling Make a Real-World Difference

    In practical day-to-day use, chemists recognize the limitations of generic or off-grade isocyanates. Various byproducts, even if present at low concentrations, can diminish performance. Our experience shows impurities tend to accumulate during storage if protocols slip. We handle and seal each drum using truly anhydrous procedures—every operator knows the signs of a potential breach and acts immediately. These lessons came from fielding calls after years of partnership, providing technical follow-up, and investigating occasional failures. Our ability to trace the micro origins of big issues—sometimes down to carrier solvents or gasket choices—means our users experience fewer interruptions and less costly downtime.

    Major Uses: How Research and Manufacturing Teams Rely on It

    Surface treatment stands out as a leading use. The reagent’s ability to create highly hydrophobic, low-energy surfaces has transformed water repellency in glass, ceramics, and composites. Colleagues investigating self-cleaning coatings depend on Octadecyl Isocyanate for its ability to link securely onto silicon or oxygen-rich surfaces, all while forming smooth, defect-free films. We often get calls from R&D teams running pilot tests, eager to troubleshoot variables ranging from application solvent, cure temperature, to equipment rinsing routines. Our feedback always draws on what has worked in real runs, where coating consistency and throughput matter more than isolated lab results.

    Electronic packaging comes up nearly every month in discussions with advanced materials engineers. In these circuits, protection against moisture and ionic contamination isn’t optional—it preserves device lifetime and reliability. Traditional encapsulants let in enough water vapor to risk failure in demanding environments. Coatings achieved through careful application of Octadecyl Isocyanate resist both moisture and dust, critical for integrated circuits or precision sensors in automotive or outdoor applications. Our line workers have adapted drum design and delivery logistics to handle strict clean-room requirements, including rigorous records for every lot.

    Key Insights on Handling and Application

    No two production sites have identical equipment, so our advice always takes into account real-world bottlenecks. Isocyanates react with water, both seen and unseen. Operators learn quickly how fast traces of water from an old hose or open drum top can sabotage a whole blend. Our senior technician keeps detailed logs showing loss patterns that occur when temperature swings or unexpected drafts in storage areas create moisture events. Training new staff takes weeks of shadowing to build awareness for everything from proper ground protection for static discharge to quick identification of bottle leaks.

    We’ve tackled contamination issues by doubling up on container testing and batch records. Our SOPs only exist today because we ran into hard lessons—like the single delivery that passed final QA, but picked up moisture during a cross-docking mishap, causing foaming in a critical customer foam run. Now, we use tamper-evident seals and bulk container liners engineered specifically for isocyanate compatibility, not generic alternatives. This approach creates extra steps at our dock, but it prevents shipping half-measures, where users would just “try to make it work” with off-spec reagents.

    Major Differences from Other Isocyanates

    The physical length of the C18 chain and the single isocyanate functional group set Octadecyl Isocyanate apart from other familiar materials. Technical contacts running polymer syntheses often ask about gelation rates and end-group conversions. Our scale-up teams have learned Octadecyl Isocyanate’s slower reactivity can help, not hinder, process control—in multi-component systems, this provides a useful working time, reducing premature cross-linking. Colleagues focusing on fast-curing polyurethane foams still use other isocyanates, while those developing durable weatherproof surfaces always return to the octadecyl variant.

    In insulation, cable jacketing, and waterproof industrial coatings, the final surface properties change dramatically based on chain length. In large-scale comparison trials, octadecyl derivatives outperform dodecyl or shorter chain analogs in contact angle tests, abrasion resistance, and many field-aging studies. The difference stems directly from the molecular packing and energy dissipation provided by longer alkyl tails. Some formulations rely solely on this product to deliver results: once replaced with a cheaper alternative, project engineers see a rapid loss in repellency and require a switch back to the original.

    Supporting Productive Partnerships with On-the-Ground Knowledge

    Partnership with our customers starts on the production floor, where every operator knows how their actions affect downstream performance. When a project manager from a high-end paint manufacturer asks for both test samples and technical data, we don’t just send certificates. Regular plant visits, side-by-side trials, and open feedback loops have taught us most real issues surface only after repeated runs—less often in small pilot batches than in real, full-load conditions. Joint troubleshooting has helped us identify solution-phase impurities, cleaning protocol missteps, or residual solvent traces that no lab report alone would flag.

    One specialty fiber supplier once reported odd slippage in weathered textile samples. Rather than offering generic advice, we traveled on-site, traced the batch genealogy, and isolated the source—unexpected humidity ingress during transfer. By working together, our engineers developed a modified nitrogen-purging step, cutting defect rates drastically and giving the customer a supply chain advantage. Such hands-on experiences deepen our understanding beyond production and build lasting trust from customers who need reliability, not just a commodity order.

    Commitment to Quality and Traceability

    An unwavering commitment to traceability has proven essential. Every drum and intermediate storage tank carries a QR-enabled serial that matches to internal logs—tracking everything from reaction start times, operator notes, cleaning run logs, temperatures, and atmospheric data. Although it sounds exhaustive, this granular approach pays off when users report issues: we match usage back to the precise manufacturing window, identifying any anomaly that could have contributed to an outcome.

    Experience shows spot-checking isn’t enough. We have invested in inline monitoring, with moisture probes, gas sensors, and chain-of-custody systems. Everything we’ve added came as a result of challenges: learning from a lost container of off-grade material, or requests from high-stakes industries that need documented assurance for every step from plant to final point of use.

    Continuous Improvement Driven by Customer Applications

    Many of our upgrades begin with specific customer projects. We’re regularly in touch with end users in the optical, coatings, and flexible packaging industries. Needs evolve fast—from anti-reflective glass to extreme weather-resistant outdoor fabrics. Each market has unique process limitations, purity needs, and compliance standards, which we answer by direct dialogue and adapting plant protocols. For us, a product like Octadecyl Isocyanate isn’t static; we revisit our process controls, regularly adjust purification columns, tweak storage solutions, and redesign packaging after reviewing long-run performance, all based on collective feedback.

    We’ve introduced new drum linings and smaller batch shipping formats following requests from laboratories needing agile quantities with high shelf life. Our team also changed the workflow for production startup and shutdown, trimming transition time and cutting cross-contamination risks to near zero. Crew members responsible for changeover ensure solvent lines, transfer pumps, and mixing vessels get double-checked—one overlooked rinse can introduce traces of dimers or ureas, which can accumulate unnoticed but later sabotage batch reliability. By treating every application and complaint as grounds to review and enhance our own methods, we give our partners stronger tools to outperform their competition.

    Health and Environment: Manufacturer-Led Transparency

    As a chemical manufacturer, transparency about hazards comes with every shipment. Isocyanates have real, documented respiratory risks, and there’s no substitute for clear communication. We require every handler—our own or our customers’—to use carefully specified personal protective equipment, and regular refresher training keeps old hands up to date. This isn’t just regulatory box-checking; our records show lost-time incidents have fallen year-on-year thanks to proactive safety initiatives. We’ve introduced improved local ventilation in filling areas and remote monitoring where feasible, in response to both internal observations and external audits.

    Waste minimization and environmental safety inform every plant decision, too. Uncontrolled emissions or leaks would endanger both staff and the community, so only closed-loop transfer systems operate in our tank farm. Where possible, off-spec product gets safely neutralized and disposed of using specialized contractors, never passed downstream or blended into saleable lots, which would invite unpredictable results. Before any process change, we conduct thorough risk assessments and post the results, so every technician, packer, and supervisor knows both the protocol and the rationale.

    True Product Differentiation Stems From Experience

    Having supplied Octadecyl Isocyanate for over a decade, we see every upgrade, complaint, and success story as an input to the real value chain. Many new users expect similar results from cheaper or seemingly identical long-chain isocyanates but quickly learn the cost of unpredictable batches, dissolved impurities, or compromised packaging far outweighs any up-front savings.

    We collaborate with diverse research groups—ranging from university innovation centers to multinational coatings teams—to expand and test new boundaries. Together, we have confirmed through outdoor aging trials, salt spray corrosion tests, and repeated temperature cycling that products using our material consistently outperform imports and generic substitutes. For high-stakes applications—military coatings, medical device surfaces, advanced electronics—the ability to guarantee every step, from raw material to shipped drum, sets the standard.

    Even among competitors, the unique signature of our Octadecyl Isocyanate shows up in key performance metrics. We’ve maintained a steady feedback loop with analytical labs and formulation experts, focusing on everything from shelf-life stability through repeated freeze-thaw exposure to reactivity mapping with novel catalyst packages. This two-way information flow helps us track the downstream impacts of subtle process changes or raw material shifts, which no data sheet could capture in isolation.

    The Value of Direct Manufacturer Support

    Every inquiry starts and ends with someone who has seen, handled, and solved problems with Octadecyl Isocyanate. Whether it’s batch-to-batch consistency, delivery format changes, or technical troubleshooting, our legacy comes from decades of collective experience, not just back-office paperwork. Incoming queries, from basic storage tips to advanced process questions, draw on a living archive of plant logs, customer reports, and on-site investigations.

    Our entire organization understands the stakes. Engineers, plant technicians, and logistics teams work together, sharing both success and failure stories in weekly meetings. A single overlooked valve seal or missing desiccant cap in a packaging run may seem small, but we recognize how these details ripple throughout the product’s second life in a partner’s operation. Only by continuous improvement and open communication do we set our product apart from alternatives treated as generic commodities.

    With Octadecyl Isocyanate, what sets us apart is more than the molecule’s structure. Our difference comes from a deep-rooted commitment to quality, application insight, and hands-on support—attributes built batch after batch, forged by customer needs, failures, and shared success.