Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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1-Octadecyne

    • Product Name 1-Octadecyne
    • Alias 1-Octadecylene
    • Einecs 204-011-3
    • 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

    739083

    Cas Number 629-92-5
    Molecular Formula C18H34
    Molar Mass 250.46 g/mol
    Iupac Name Octadec-1-yne
    Appearance Colorless to pale yellow liquid
    Boiling Point 317-319 °C
    Melting Point 18-22 °C
    Density 0.783 g/cm³ at 20 °C
    Solubility In Water Insoluble
    Flash Point 162 °C
    Refractive Index 1.444 at 20 °C
    Vapor Pressure 0.028 mmHg at 25 °C

    As an accredited 1-Octadecyne factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 1-Octadecyne is supplied in a 25g amber glass bottle with a secure screw cap, labeled with hazard and handling information.
    Shipping 1-Octadecyne is shipped in tightly sealed containers, protected from light, moisture, and ignition sources. It is typically transported as a liquid under ambient conditions, with appropriate hazard labels due to its flammable nature. Packaging complies with regulations for hazardous organic chemicals to ensure safety during handling and transit.
    Storage 1-Octadecyne should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and incompatible substances such as oxidizers. Protect from light and moisture. Handle under an inert atmosphere if possible to prevent oxidation or reaction with air. Always follow relevant safety guidelines and local regulations for storage.
    Application of 1-Octadecyne

    Applications of 1-Octadecyne in Industrial Manufacturing

    1-Octadecyne functions as a specialized raw material for industrial syntheses, offering unique triple-bond reactivity for use in polymers, surfactant precursors, specialty coatings, and electronic material formulations. Below, we detail its principal industrial application segments, focusing on specific downstream production processes, regulatory standards, and targeted end-use products.

    1. Synthesis of Functional Polymers and Copolymers

    Industrial manufacturers use 1-Octadecyne as a comonomer for specialty polyacetylenes and grafting reactions within polyethylene, polypropylene, and other polyolefin chains. The terminal alkyne group facilitates controlled molecular design, improving thermal resistance and modulating surface characteristics for engineering plastics. This segment emphasizes large-scale batch or continuous polymerization processes, crucial for microelectronics, automotive, and advanced packaging markets.

    Industry compliance standards

    • ISO 9001:2015 certified quality management in polymer production
    • REACH Regulation (EC 1907/2006) for raw material registration and evaluation in the EU
    • UL 94 flammability standards for electrical application end products
    • RoHS Directive 2011/65/EU for electronic-grade polymer applications

    Typical usage ratio

    • 0.5% to 5% by weight in copolymerization, adjusted according to desired branching, hydrophobicity, or surface energy

    Downstream process integration

    • Direct fed as a liquid monomer into autoclave or loop reactor during copolymerization
    • Requires inert gas protection during addition to prevent oxidation
    • Integration in solution or emulsion polymerization protocols
    • Inline analytics for conversion monitoring and product control

    Final product types

    • Hydrophobic films for microelectronics encapsulation
    • Modified high-density polyethylene for industrial packaging
    • Flame-retardant compound masterbatches
    • Specialty copolymers for automotive interior applications

    2. Alkylation Agent in Surfactant Intermediate Manufacturing

    Specialty surfactant producers employ 1-Octadecyne as an alkyl chain source in the synthesis of ethoxylated and sulfonated surfactant intermediates. Its linear, unsaturated structure enables precise control of hydrophobic-lipophilic balance (HLB) in nonionic and anionic surfactant systems, suited for challenging wetting, emulsifying, or dispersant performance in agrochemical, textile, and oilfield applications. Production focuses on catalytic alkoxylation or sulfonation, requiring strict handling to avoid alkyne polymerization side reactions.

    Industry compliance standards

    • OECD Guidelines for testing surfactant biodegradability
    • ISO 9001:2015 for specialty chemical manufacturing
    • Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) for EU distribution
    • Food Chemical Codex (FCC) compliance if for food-grade processing aids

    Typical usage ratio

    • 2% to 15% by weight, depending on the targeted chain length and degree of ethoxylation or sulfonation

    Downstream process integration

    • Reacted in alkoxylation reactors alongside ethylene oxide or propylene oxide
    • Used as the feedstock in sulfonation reactors with SO3 or chlorosulfonic acid catalysts
    • Product separation via vacuum stripping and liquid-liquid extraction
    • Final purification by distillation and filtration

    Final product types

    • High-performance emulsifiers for agrochemical formulations
    • Low-foaming surfactants for industrial cleaning and metalworking fluids
    • Specialized textile auxiliaries
    • Emulsifying agents for high-temperature oil recovery fluids

    3. Silylation Reagent for Advanced Silicone Materials

    In advanced silicones manufacturing, 1-Octadecyne acts as a silylation reagent, engaging in hydrosilylation with organosilicon hydrides to introduce long-chain alkyl groups. This modification is critical for imparting antifouling, slip, and hydrophobic functionalities to RTV and LSR silicone systems, predominantly for automotive, aerospace, and consumer electronics end-uses. The process demands high-purity feedstock and precise platinum-catalyzed hydrosilylation under inert conditions to ensure product uniformity and compliance with industrial safety standards.

    Industry compliance standards

    • ISO 14001:2015 environmental management for silicone production facilities
    • ASTM D2765 for gel content in cross-linked silicone elastomers
    • UL 746C for electrical insulator application of silicone products
    • REACH SVHC (Substances of Very High Concern) avoidance for EU sales

    Typical usage ratio

    • 1% to 8% mole ratio relative to hydrosilane groups, tailored for required cross-link density and surface modification

    Downstream process integration

    • Metered addition into silicone formulations during hydrosilylation in the presence of Karstedt or Speier catalysts
    • Vacuum degassing to remove hydrogen by-products and prevent bubble formation
    • Product integration with pigment, filler, or flame-retardant additive lines
    • Batch and continuous operations supported for different silicone grades

    Final product types

    • Anti-graffiti coatings for urban infrastructure
    • Liquid silicone rubber (LSR) for keypads, gaskets, and automotive seals
    • Weathering-resistant RTV (room-temperature vulcanized) silicone adhesives
    • Hydrophobic cable sheathing materials

    4. Building Block in Liquid Crystal Material Synthesis

    Manufacturers of display and photonic materials incorporate 1-Octadecyne as a precursor in the elaboration of alkynyl-functionalized liquid crystal monomers. Its unbranched C18 chain imparts controlled melting points and influences mesophase stability crucial for advanced LCD, OLED, and flexible display applications. The material undergoes Sonogashira cross-coupling and other selective reactions to yield intermediates compatible with precision electronics.

    Industry compliance standards

    • ISO 14644-1 cleanroom standards for electronic material production
    • IPC-4101B for base materials used in rigid and multilayer printed boards
    • RoHS compliance for hazardous substance restrictions in electronics
    • Japanese JIS C6109 and JIS C5150 standards for LCD component quality

    Typical usage ratio

    • 5% to 20% molar ratio, adjusted based on the desired physical and optical properties of the target liquid crystal mixture

    Downstream process integration

    • Engaged in palladium-catalyzed coupling reactions to form intermediate monomers
    • Incorporated into multi-step syntheses involving protection, deprotection, and purification by chromatography
    • Subjected to vacuum drying to prevent contamination in high-purity display use
    • Final QC by HPLC and UV-Vis spectral analysis before downstream blending

    Final product types

    • Twisted nematic (TN) and vertically aligned (VA) liquid crystal materials
    • Organic semiconductors for OLED display panels
    • Photoresponsive LC compounds for smart window films
    • Flexible display matrix components
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    Certification & Compliance
    More Introduction

    Introducing 1-Octadecyne: Reliable Performance Rooted in Real Manufacturing

    Direct from the Chemical Plant Floor – Our Experience with 1-Octadecyne

    Every day at our plant, we see the backbone of modern chemical synthesis at work. 1-Octadecyne speaks for itself as one of those specialty compounds—C18H34—that shape the materials and molecules industry needs. Our crew recognizes the impact this long-chain terminal alkyne brings to manufacturing. Handling, storing, and shipping this product take discipline and skill forged in actual production work, not just textbook knowledge.

    What Sets Our 1-Octadecyne Apart

    Most users spot 1-Octadecyne by its straight, unbranched chain and a single triple bond locked at the end. In the lab it looks like a clear, oily substance, but at the bench and plant level, purity and chemical stability become the real tests. Our batches, produced in controlled reactors, maintain high standards for purity—regularly above 97%. Raw material quality and monitored synthetic routes reduce impurities that could undermine performance later in downstream processes. Not every supplier tests for trace contaminants, but our operations invest in rigorous gas chromatography and IR checks for every drum.

    Having run pilot and large-scale batches, we know what production fluctuations look like—and how to address them before they ever reach a customer. As manufacturers, we collaborate closely with logistics and safety teams to avoid unnecessary exposure and keep storage safe. That’s important because a single contamination event, even at parts-per-million levels, can compromise catalyst loading or block a reaction site. Our integrated approach ensures each batch’s physical analysis matches the actual application demands.

    Where 1-Octadecyne Goes to Work

    We get questions about uses daily. In our experience supplying 1-Octadecyne, polymer chemists value its role as a chain stopper, a modifier, or as an intermediate for functional materials. For example, in producing surfactants, a terminal alkyne with an 18-carbon chain offers key hydrophobic properties for emulsifiers, coatings, and specialty adhesives.

    Research teams also rely on its predictable reactivity in click chemistry and as a building block in advanced organic synthesis. Pharmaceutical groups have used it for designing molecular scaffolds, where the triple bond can selectively attach functional groups or adjust structural properties. Our team tracks these shifts in demand over time and maintains flexible batch sizes to accommodate projects as small as a few hundred grams to full-production runs of several metric tons.

    Why Consistency Matters in 1-Octadecyne

    After years of running reactors and troubleshooting at each stage, we’ve seen what a difference predictable product quality makes. Even small shifts in the endpoint, like minor impurities or off-ratio isomers, irritate synthetic chemists and sometimes cause rejected runs. So we’ve invested in extra distillation columns and analytical equipment to minimize batch-to-batch variance. Chemists need consistency every time, whether they're making a test sample or filling a 5,000-liter vessel.

    Beyond routine quality, scale-up experience matters. Chemists stepping from bench to plant-scale operations often find materials that worked in a 10-gram reaction suddenly behave differently in a 200-kilogram reactor. Gradients in temperature or traces of oxygen can initiate unwanted side reactions at scale. That’s why our engineers design production runs with both lab reports and actual plant conditions in mind, ensuring the product works not just in theory but in live industrial settings.

    What Makes 1-Octadecyne Different from Other Alkynes

    In our own plant and during conversations with customers, 1-Octadecyne comes up regularly as a standout compared to shorter or branched alkynes. Its long carbon chain delivers strong hydrophobic properties and yields heavier products. That makes it better suited for some types of high molecular weight surfactants and specialty coatings compared to lighter alkynes.

    We’ve found that the terminal triple bond of 1-Octadecyne keeps the molecule highly reactive at one end but leaves the hydrocarbon tail chemically stable and compatible with hydrophobic environments. Unlike internal alkynes or highly branched analogs, 1-Octadecyne’s specific structure lends itself well to selective reactions and polymer modifications. That detailed difference offers advantages in both process controllability and finished material properties—two features industrial researchers often overlook until they run into a supply problem.

    Specification Details that Matter

    Day-to-day, chemists ask about exact purity levels, color, stability, and handling ease. From the perspective of our operations team, controlling water content and peroxide levels has made the greatest impact in reliability. Each drum we ship is sealed and headspace-tested to prevent oxidation or moisture ingress. Our storage tanks remain purged with inert gas, which keeps oxidative degradation at bay, especially for customers needing repeat—often automated—chemical processing.

    With experience in both open-air and closed-system factories, our crew has learned how container type, drum material, and even insulation during shipment influence the end-user experience. We recommend stainless steel and high-grade plastics for transfer because we’ve seen how some materials react or leach impurities during transit. During hot summers or long sea shipments, our logistics staff monitor temperature and exposure to light, since both can accelerate unwanted side reactions.

    Supporting End-User Applications—From R&D to Production

    We don’t just produce, package, and ship—our technical support teams spend time in customer labs helping troubleshoot real-world formulations. We’ve helped engineers dial-in 1-Octadecyne as a reactive co-monomer in novel copolymers, where side reactions and polymer chain growth control define product characteristics. In surfactant synthesis, we’ve compared our batches side by side with imported materials, monitoring color stability, odor profile, and product carryover—all pieces that matter for a process to run smoothly batch after batch.

    Alongside R&D, bulk customers in lubricant additive manufacturing and fine chemical production rely on our product for consistent boil points and low residual odors. Because these factories invest in long production campaigns, contamination-free supply becomes critical. Even a subtle impurity can show up as foam, haze, or unwanted byproduct in the final blend. By visiting customer sites, we see firsthand how a small improvement on our end saves hours of troubleshooting downstream.

    Real Challenges, Real Solutions

    Manufacturing 1-Octadecyne at scale has never been simple. Our team has spent years refining routes, updating reactors, and improving process flows to meet tightening purity demands. Controlling exothermic steps and ensuring a complete conversion while holding down costs leads every day to tough decisions in the control room. Over decades, we’ve kept up with tighter safety standards by automating parts of handling and improving ventilation systems to reduce vapor risks.

    In the past, recycling byproducts and dealing with corrosive intermediates posed operational headaches. We updated process lines with better seals, temperature control, and corrosion-resistant linings—based not just on supplier recommendations, but on actual failures we lived through. This has led to fewer production stoppages and a more predictable supply chain. Our analytical teams also run advanced impurity profiling on every lot, catching patterns that could signal a systemic issue long before it reaches a customer’s warehouse.

    Supporting Sustainability and Waste Reduction

    Demand for more sustainable chemistry drives our research as well. Over the last few years, we’ve streamlined hydrogenation steps to recover byproducts instead of venting them. Unused fractions of hydrocarbon chains previously sent to waste now fuel secondary processes or serve as feedstock elsewhere in the plant.

    In drum disposal, our operations group arranges recovery and cleaning services to reduce landfill burden. Since terminal alkynes can be sensitive to contamination, we also coach customers on safe residual handling and suggest container reuse programs, wherever practical. This lowers not just disposal costs but also the environmental footprint associated with each shipment.

    What Our Customers Have Learned Alongside Us

    Years of supplying 1-Octadecyne has meant learning alongside the engineers and researchers who use our product. We’ve observed how process changes upstream, such as different catalyst choices or temperature programs, sometimes require subtle tweaks in feedstock. Instead of shrinking from these conversations, we invite technical feedback and—where possible—run parallel tests or adjustment trials to keep production fences low and overall system reliability high.

    Some of our most meaningful improvements have come from field reports about unexpected coloration or trace instability during storage. By reviewing real shipping and storage challenges with customers, we uncovered handling tweaks—simple as purging a vessel with nitrogen or reducing UV exposure on site—that multiplied shelf life dramatically.

    Looking Forward: Continuous Improvement in Manufacturing Practices

    Chemical manufacturing never stands still. With 1-Octadecyne, inquiry volumes rise and fall based on global trends like new surfactant systems or specialty material launches. Our production planners monitor market feedback, keep extra stock on hand when possible, and coordinate directly with purchasing agents at both multinational and local companies. Supply chain disruptions, whether global crises or local infrastructure events, demand flexibility. That’s why transparency in batch availability, lot genealogy, and storage status remains a core practice for us at every step.

    Keeping our operating staff trained on best practices avoids surprises and keeps product flowing smoothly out the door. We’ve found that investment in regular preventative maintenance—not just when something breaks—cuts unplanned downtime and reduces the risk of out-of-spec material being produced. Partnerships with equipment suppliers and participation in technical forums keep our finger on the pulse of new reactor materials, improved filtration systems, and emerging safety guidelines.

    Key Takeaways: Why Source 1-Octadecyne Direct from the Manufacturer?

    Working with direct producers like us gives customers a troubleshooting advantage, a view into supply controls, and a steady stream of feedback. While traders or distributors move drums, we get inside the chemistry and operations, correcting and refining as we go. For any company relying on process repeatability, technical assistance, and material traceability, dealing directly with specialty chemical manufacturers reduces risk and smooths the path for new product launches.

    We know the ins and outs of 1-Octadecyne through years of making it, fixing issues, and adapting processes to meet the world’s changing needs. Our teams stay committed to continuous improvement—not only for compliance, but for the satisfaction of seeing our product reliably power everything from adhesives to advanced materials to research breakthroughs. Every drum we send out represents experience, problem-solving, and a heavy dose of real-world practice.