|
HS Code |
527655 |
| Cas Number | 939-27-5 |
| Molecular Formula | C12H12 |
| Molar Mass | 156.23 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 282-284 °C |
| Melting Point | -6 °C |
| Density | 1.002 g/cm³ at 20 °C |
| Refractive Index | 1.595 at 20 °C |
| Flash Point | 121 °C (closed cup) |
| Solubility In Water | Insoluble |
| Iupac Name | 2-ethylnaphthalene |
| Vapor Pressure | 0.016 mmHg at 25 °C |
As an accredited 2-Ethylnaphthalene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 500 mL size, sealed with a screw cap, labeled with chemical name, hazard warnings, and manufacturer information. |
| Shipping | 2-Ethylnaphthalene is typically shipped in steel drums or bulk containers designed for flammable liquids. It should be stored in a cool, well-ventilated area away from sources of ignition. Shipping must comply with local and international regulations for hazardous materials, and proper labeling and documentation are required to ensure safe handling. |
| Storage | 2-Ethylnaphthalene should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible materials such as strong oxidizers. The container must be tightly sealed and clearly labeled to prevent leaks or contamination. Avoid exposure to direct sunlight and moisture. Suitable storage containers include those made from materials compatible with aromatic hydrocarbons. |
Applications of 2-Ethylnaphthalene in Industrial ManufacturingWe supply 2-Ethylnaphthalene as a refined raw material to leading manufacturers operating in advanced industrial sectors. Each application below reflects genuine commercial usage, consistent with recognized industry standards, controlled integration in continuous production lines, and documented quality checkpoints. 1. Downstream Synthesis of 2-Ethyl-1,4-naphthoquinone for Vitamin K3 ManufacturingGlobal producers of menadione (Vitamin K3) use 2-Ethylnaphthalene as the core starting material for synthesizing 2-ethyl-1,4-naphthoquinone. This intermediate requires high-purity input, stringently monitored through feedstock traceability and consistent isomer ratios. Manufacturers execute alkylation and subsequent oxidation in fully enclosed reactors with multi-stage purification. Routine in-process analytical controls are essential to maintain compliance with consumer dietary additive purity needs. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. High-Purity Intermediate for Production of Heat-Transfer FluidsMajor chemical formulators leverage 2-Ethylnaphthalene as a high-boiling aromatic blending component in the synthesis of heat-resistant fluids for closed-loop thermal transfer systems. Chemical stability and minimal volatility of 2-Ethylnaphthalene are critical for applications in process plants, solar power, and specialty heat exchangers. Quality parameters focus on sulfur, polyaromatic hydrocarbon content, and trace moisture for downstream oxidation stability. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Precursors for Polyetheretherketone (PEEK) and Other High-Performance Polymer SynthesisPolymer manufacturers use 2-Ethylnaphthalene as an advanced monomer precursor when synthesizing specialty aromatic ketones and polyaryl polymers. Its ethyl side chain placement and controlled aromatic reactivity enable precision in chain length and thermal performance during condensation and polymerization. Quality audits confirm residual alkali and heavy metals fall below industry limits, ensuring compatibility with advanced catalyst systems. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Specialty Solvent for Selective Extraction in Hydrocarbon ProcessingIn the petrochemical industry, plants deploy 2-Ethylnaphthalene as a selective solvent during liquid-liquid extraction stages for separating and purifying complex hydrocarbon mixtures. Its high aromaticity and defined boiling range allow operators to enhance separation of naphthenic and aromatic cuts from feedstocks, particularly during lube base oil or transformer oil refining. Key control points include aromatic index, total acid number, and systemic solvent loss monitoring. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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Every step in manufacturing a specialty aromatic like 2-Ethylnaphthalene demands care, vigilance, and real knowledge. Over years of refining our process, we have witnessed firsthand how essential purity, consistency, and smart decision-making are for anyone relying on this compound in downstream applications. Our practical experience shows real differences emerge between seemingly similar grades and sources of 2-Ethylnaphthalene, and those differences matter when the stakes involve quality products or crucial research.
Our 2-Ethylnaphthalene comes from a hydrogenation process that draws on high-grade naphthalene feedstock. Tight control at every checkpoint — from feedstock selection to the reactor parameters — lets us maintain batch uniformity and sharply reduce unwanted byproducts. Consistently meeting or outpacing a GC purity level of 98% lends confidence to customers developing advanced materials, intermediates, and research chemicals, since the substance’s reactivity and downstream behavior improve with reliable quality.
Anyone involved in fine chemical synthesis or advanced polymer production understands the crucial roles played by ethylnaphthalenes. Our 2-Ethylnaphthalene is leveraged most frequently as a precursor for 2-naphthylamine synthesis, alongside being used in the preparation of dyes, agrochemical intermediates, and certain plasticizers. In large-volume manufacturing, the margin for error in feedstock chemistry can make the difference between working batches and expensive off-spec waste.
Some customers route 2-Ethylnaphthalene directly into oxidation to produce 2-naphthoic acid, which then feeds high-performance polymer syntheses. The chemistry in this pathway relies on both the molecular stability of the base naphthalene ring and the precise positioning of the ethyl moiety — something that impurities and isomeric confusion compromise. We see, in our customer feedback and lab returns, that extra work is often required to purify material of lesser provenance, and that higher-purity supplies directly reduce downstream purification costs and synthetic headaches.
From practical experience, even small traces of other alkyl naphthalenes or oxidized side products shift the properties of finished products. For instance, pigments derived from 2-Ethylnaphthalene can display altered solubility and tint if side-chain substitutions are too abundant. This observation guides our ongoing investments in separation and analytical technology, letting us drive down minor contaminants batch after batch. Over the years, we have worked out key procedures for hydrocarbon vapor recovery, instrumental monitoring, and systematic in-process sampling to meet and exceed consistent purity benchmarks.
Other manufacturers sometimes treat 2-Ethylnaphthalene as a simple bulk product. Our direct role in continuous-batch production offers valuable control over feedstock source and throughput rate. This proves vital in a market where global supply can shift quickly based on upstream naphthalene markets and the availability of catalytic hydrogenation units. Being a chemical producer — not a middleman — we hold direct responsibility for verifying batch identity, setting aside off-spec fractions, and tightly managing inventory turnover.
Those operating in the resin, dye, or laboratory chemical sectors approach us with precise requirements: consistency of melting point, minimal color body presence, and high chromatographic purity. Feedback from users facing challenges in synthesizing 2-naphthylamine highlights the dangers of input variability. Each mole of impure feedstock threatens to form unintended side chains or leave behind discolored or intractable byproducts. Addressing this, our plant team incorporates regular gas chromatography and FTIR analysis. By identifying contaminants as soon as they arise, we intervene mid-process, diverting affected fractions, not passing them down the line.
Comparing our material to alternate grades from non-integrated suppliers, we see sharp contrasts: less run-to-run odor variance, improved handling safety by limiting residual aromatic hydrocarbons, and lower polymerization risks during storage. These factors matter most to customers running continuous or large-batch synthesis, where upsets cascade through all downstream processes. Regular communication with our partners leads to iterative adjustment — cutting out inefficient steps or pilot runs when readiness is proven. Our team’s hands-on skills have repeatedly made the difference in successfully launching new product lines for demanding applications.
Spec sheets and COAs tell only part of the story. They can never fully capture the procedural discipline behind turning out a high-purity organic from complex feed. Our usual 2-Ethylnaphthalene model runs to 98%+ GC purity with moisture content below 0.1% by Karl Fischer titration. Organoleptic checks, like odor and appearance, may seem subjective, but these properties consistently reflect careful distillation and packaging. Only a producer that sees daily variation and tracks long-term data can truly appreciate how these small details add up to big change in handed-off material quality.
Shipping to global markets, we address routine questions about long-haul transport risks — specifically, hydrocarbon volatility and in-transit oxidation. Customers using air- or sea-freight value fresh material filled under inert atmosphere. Past incidents, where other manufacturers’ material arrived partially oxidized, demonstrate how damage creeps in if oxygen exclusion is not strictly enforced; producers must invest in both specialty packaging and monitoring to avoid these pitfalls. Customer field reports guide our improvements: thicker vessel linings, secondary containment, improved stoppers, and consistent short-term warehousing help prevent degradation and maintain on-spec shipments from our site to end use.
Personal visits to industrial users have further clarified the critical need for predictable liquid range and pourability. Process tanks relying on small temperature differentials during transfer cannot tolerate freezing point drift or viscous, partially solidified batches. We routinely run melting point tests and keep a strong record of performance in different climates, advising buyers on optimal storage and transfer temperatures. Over long production runs, minor variances in pour or flash point tell a story about both the chemical’s preparation and the equipment used in filling — knowledge learned only from being hands-on in the real plant environment, not behind a trading desk.
For decades, the 2-Ethylnaphthalene market has ebbed and flowed with petrochemical cycles. Price spikes have prompted some consumers to experiment with unverified sources, hoping for short-term gain. Our experience has been that cut-rate material brings long-term problems — plug fouling, tank scale buildup, and unscheduled downtime, none of which offset any marginal savings at purchase. Returned lots from outside suppliers have often required re-distillation or outright disposal, causing more expense than buying right the first time. Robust analysis, both in-house and third-party, ensures that our product stands up to independent scrutiny from researchers, formulators, and quality managers.
Direct engagement with regulatory movers also shapes our approach. Regions with tight restrictions on polycyclic aromatics or workplace safety call for reliable documentation and up-to-date handling data. Owning the process — from sourcing and transforming raw naphthalene all the way through to customer hand-off — means we answer for traceability, batch records, and questions about environmental, health, and safety impact. Any knowledge gap or oversight opens the door to compliance risks — a situation we avoid through open records and transparent operations. As synthetic methods and regulations advance, so must reporting and testing regimes.
Long-term supply takes more than a stock of raw materials; it takes close relationships with upstream refineries and logistics teams. Unanticipated production interruptions, whether from feedstock shortfalls or plant maintenance, echo all the way down to chemical manufacturers and their customers. It falls on producers, not resellers, to maintain open lines of communication, hold safety stocks, and schedule preventive maintenance for continuity. Only with this investment do users experience steady shipments and timely replacements, regardless of broader market fluctuations.
We have experienced the impact of extreme weather, logistics bottlenecks, and raw material volatility over several decades. Our commitment to holding buffer stocks, investing in newer reactor and separation units, and cross-training team members all come from lessons learned during tough cycles. Backstop contracts with suppliers allow us to shield most customers from downstream delays. This adaptability — impossible for non-producers — means even in lean years, research and production teams avoid unexpected stoppages or reformulation headaches.
One recurring question from newer customers centers on differentiation between grades of ethylnaphthalenes: 1- vs. 2-position, and also linear-chain versus slightly branched forms. Consistent analytical separation — using both classic chromatographic techniques and modern spectroscopic monitoring — allows us to provide reliable 2-Ethylnaphthalene, without contamination from 1-Ethylnaphthalene or higher alkylnaphthalenes. The two isomers share many physical properties but behave differently in certain reactions; process engineers have traced significant synthetic inefficiencies to unwitting use of mislabeled or blended materials.
Requests from advanced users in electronic materials or liquid crystal development drive us to tighter refinement standards and more frequent technical feedback sessions. Running pure 2-Ethylnaphthalene through legacy runs and new pilot projects has shown which process parameters — temperature range, catalyst selection, distillation curve — most affect performance. For those chasing cutting-edge properties in polymers or pigments, small differences in contaminant trace residues (ppm instead of percent) can push batch performance above or below specification limits.
Learning directly from application chemists and plant engineers has shown us where purity matters most: in oxidation pathways, any leftover naphthalene or substituted side products spell reactivity problems. Our lab teams adjust fractionation cuts and run side-by-side comparisons to trace the downstream effect of procedural tweaks. The result of this producer-driven feedback cycle is measurable — cleaner reactions, less need for downstream color removal, and more reproducible polymerization.
Problems can and do arise in chemical production. Some issues are beyond anyone’s control — supply chain interruptions, feedstock shortages, or even natural disasters. Being the manufacturer puts the responsibility squarely on our shoulders to communicate openly and promptly. In situations where an issue arises, we reach out to affected customers and suggest substitutes or alternative logistics. Nothing replaces the transparency and directness of straight talk from the people making the chemical, not selling someone else’s.
In difficult situations, such as when a feedstock batch needs to be withheld or a run comes up short on yield, our team dives into root-cause analysis, not finger-pointing. Customers have often remarked that they value information quickly and fully — even if the initial news is negative — over chasing after explanations weeks later when plans have already gone awry. Our frontline contacts are the chemists and operators who know what went right (or wrong) on every shift; this makes all the difference in setting realistic expectations and finding rapid fixes.
With more organizations demanding documentation and traceable records for both audits and customer reassurance, producing partners bear the task of keeping all the paperwork — and technical knowledge — accessible and current. Our records are open and verifiable, ensuring that every batch matches its documentation and traceability requirements throughout its lifecycle. No data is massaged, no CoA is post-factum, and all analyses are run to completion before the product leaves our facilities. This discipline stems from years of direct relationships with both regulatory agencies and demanding technical teams across multiple sectors.
Modern chemical manufacturing must prioritize safety and minimize environmental impact, both for employees and for those depending on final products. Our direct involvement in the plant’s day-to-day operations makes this obligation clear. Good air-handling systems, responsible hydrocarbon recycling, and regular health monitoring have become standard, not luxuries. We take pride in showing our methods to customer QA teams or auditors who want to see for themselves the safeguards guarding every drum or tote that leaves the site.
With solvents and later-stage uses sometimes subject to environmental scrutiny, extra steps such as closed-system transfers, vapor recovery, and water treatment have become part of our everyday discipline. We frequently audit our own processes — asking what could go wrong and running simulations on containment or fire scenarios. Regular staff safety drills and third-party walkthroughs help us catch small procedural deviations before they become headline problems. Our sustained commitment means fewer incidents, reduced waste, and a cleaner working environment for both staff and partners.
Ongoing improvements do not just address compliance but also practical ways of reducing exposure and risk, such as improved packaging, clearer labelling, and straightforward safety data. Direct handling experience, rather than just regulatory paperwork, has led to innovations like tamper-evident caps and nitrogen-purged shipping containers. Higher product integrity at the customer’s door allows safer handling and less rework, reducing both cost and potential for chemical exposure. Building this safety mindset into the product lifecycle means better results for everyone.
Looking at today’s market, 2-Ethylnaphthalene isn’t just a fingerprint in a reagent catalogue — it forms the backbone of specialty polymers and advanced intermediates. Research chemists and industrial process designers come to us for a specific reason: reliability in properties and predictability in outcomes. Our work in controlling purity, meeting committed delivery schedules, and translating user feedback into actionable improvements sets a high bar — and reflects what producers, not intermediaries, bring to the table.
Despite constant shifts in feedstock supply, application advancements, and regulatory expectations, the value of direct manufacturing expertise stands out. We know what happens at every stage from raw input to finished reagent and how small choices ripple through to the largest-scale reactors and most sensitive analytical setups. Real solutions arise from daily engagement, not just quarterly meetings, and bring lasting benefit to every chemist and engineer depending on their next shipment.
In summary, manufacturing 2-Ethylnaphthalene means more than following a reaction protocol. It requires skill, vigilance, and a direct understanding of what partners in industry, research, and product formulation truly need. This knowledge, built on decades of direct plant insight and troubleshooting, defines the enduring quality and dependability our product contributes to industries worldwide.