|
HS Code |
244561 |
| Name | 2-Naphthol |
| Alternative Name | Beta-Naphthol |
| Chemical Formula | C10H8O |
| Molar Mass | 144.17 g/mol |
| Appearance | Colorless to pale yellow crystalline solid |
| Melting Point | 121°C |
| Boiling Point | 285°C |
| Solubility In Water | Slightly soluble |
| Density | 1.28 g/cm³ |
| Cas Number | 135-19-3 |
| Pka | 9.51 |
| Odor | Phenolic |
| Flammability | Combustible |
| Refractive Index | 1.640 |
As an accredited 2-Naphthol/Beta-Naphthol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 250g of 2-Naphthol/Beta-Naphthol comes in a tightly sealed, amber glass bottle with a clear hazard label and product details. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for 2-Naphthol/Beta-Naphthol: Typically 16–18 metric tons packed in 25 kg bags or drums per container. |
| Shipping | 2-Naphthol/Beta-Naphthol is shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. Classified as a hazardous chemical, it is transported according to local and international regulations for toxic and irritant substances. Proper labeling, documentation, and safety precautions are essential during shipping to ensure environmental and personnel safety. |
| Storage | 2-Naphthol/Beta-Naphthol should be stored in a tightly closed container in a cool, dry, well-ventilated area away from sources of ignition, heat, and incompatible materials such as strong oxidizing agents. Keep away from direct sunlight and moisture. Use secondary containment to prevent leaks. Ensure proper labeling and restrict access to trained personnel. Avoid prolonged exposure to air to minimize degradation. |
| Shelf Life | 2-Naphthol has a shelf life of 3-5 years when stored in a tightly sealed container, away from light, heat, and moisture. |
Competitive 2-Naphthol/Beta-Naphthol prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.
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Tel: +8615371019725
Email: sales7@boxa-chem.com
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Manufacturing 2-Naphthol demands more than routine chemistry. Over decades of batch production, we have witnessed subtle changes in color, solubility in different solvents, and how tighter crystallization brings purity levels above 99.5%. Beta-Naphthol isn’t just a basic raw material. Painters, leather finishers, ink producers, dye synthesizers, and rubber compounders rely on consistent melt points and low contaminant profiles to keep their downstream processes smooth. From our earliest glass reactors to today’s fully automated plants, we have always tracked the details that prevent batch-to-batch surprises for customers.
Most 2-Naphthol on the market fits the “Standard Grade” profile—offering a powder or crystal with a melting point of about 122°C and typical assay in the 99.0-99.5% range. We push our specifications past these common benchmarks. Shelf life in containerized storage can run up to two years if kept below 40°C, but environmental stresses like moisture and metal ions degrade its color and reactivity. Instead of only designing around typical transport, we include humidity scavenging and reinforced lining on bulk drums, matching storage expectations in tropical climates and high-throughput plants alike.
We achieve these standards from the ground up. Our reactors weigh in raw naphthalene by load-cell, neutralize excess sulfuric acid with continuous pH monitoring, and chill filtrate with glycol cooling to avoid color formation. Each technical decision has a reason. Years ago, customers requested the elimination of trace iron and copper, which ruined pigment strength for high-end azo dyes. Switching to glass-lined vessels and high-pressure water-jacketed transfer pipes stopped this contamination at the source. You won’t find “gray-tinted” batches in our inventory—not by accident, not ever.
A common misconception about Beta-Naphthol is that purity and color alone set one supplier apart from another. From the perspective of a manufacturer who has responded to endless dye and rubber compounding challenges, it’s the unlisted qualities—moisture content, particle size distribution, surface activity—that determine its true value. We field requests from pigment blenders needing fine powders under 80 microns, and serve tire plants seeking a coarser grade to cut down on dust and improve flow rates through their hoppers. These aren’t generic product lines—they’re custom tweaks developed hand-in-hand with plant managers running real systems.
The demand for “Low Dust” models has grown. Minor changes like adjusted sieve cuts and anti-caking treatments seem simple but require a rigorous process to exclude even tiny traces of silica or lubricants that would inhibit downstream chemical coupling. Our tailored 2-Naphthol grades offer an edge for azo coupling, manufacturing organic pigments like Pigment Red 57:1 (BONA Lake red) where every impurity threatens color performance. No trading houses or resellers can match the process control of handling raw naphthalene, conversion, purification, and finishing on one site, under chemists who have run these lines for decades.
Unlike some fine chemicals, 2-Naphthol from different origins can look similar by paper specification. End users often compare only on price, but after working with all segments of the dye and pigment world, experience persuades anyone running a process to look deeper. Reaction consistency isn’t a luxury—a wrongly refined batch with just trace organic contaminants can ruin days of production. Japanese and European pigment plants, for example, require data-backed repeatability, which is only possible through rigorous process validation in the factory itself.
Many resellers never see their own product in use. As a primary producer, we review tailings, filtration residues, and measure absorbance spectra in our QC lab on every batch before it leaves. This provides insight into seasonal feedstock variability, as well as ongoing process tweaks—translating to a final product that exceeds common regulatory checks and maintains color and reactivity standards for all who depend on it.
Decades in manufacturing show the real worth of Beta-Naphthol lands in its transformative outcomes. Its roots trace to the heart of azo dye chemistry, where chemists couple it with diazonium salts to yield stronger reds, oranges, and purples. Our product forms the backbone for pigment synthesis from BONA reds to Lake Orange and Sudan dyes, with downstream applications in everything from high-fashion textiles to data recording inks. The leather finishing industry pushes purity needs further, as only ultra-clean crystals risk no pigment dulling or fading over wear cycles.
Rubber antioxidants use Beta-Naphthol’s unique ability to scavenge radicals and slow yellowing or cracking. Some automotive compounding specialists need exactly defined surface areas to maximize dispersion and compatibility. Ink manufacturers need to exclude side-reaction prone contaminants that can block print heads or shift viscosity out of spec. Whether our 2-Naphthol goes into a luxury handbag’s finish or a run-flat tire, it passes through at least five stages of in-house monitoring, delivering reliability where it matters most.
It’s tempting to confuse Naphthol isomers, or even group 2-Naphthol with the more widely available Phenol series, but the chemistry and performance aren’t the same. Alpha-Naphthol and Beta-Naphthol share a backbone, but the orientation of the hydroxyl group (at the 1 or 2 position on the naphthalene ring) dramatically impacts reactivity. We see this every day in coupling reactions: Alpha-Naphthol yields different azo shades and reacts at a lower rate compared to the bolder, more temperature-stable Beta isomer.
Customers occasionally ask whether less expensive phenolic compounds suffice for dye manufacturing. We point to the fact that azo coupling reactions using pure 2-Naphthol achieve higher conversion rates, stronger color intensity, and less byproduct formation. Trying to substitute with phenols or mixed isomers results in inconsistent batch quality. Over years of QC data, we observe significant improvements in process economics and batch traceability when end users insist on authentic, single-isomer Beta-Naphthol produced at industrial scale.
No supply chain is free from disruption—shifts in raw material markets, sudden changes in environmental policy, shipping bottlenecks, and even unexpected climate-driven events can hit output. As an old hand in this business, we’ve been through cold winters slowing naphthalene feedstock deliveries, hurricanes halting vessel movements, and demand surges that test plant capacity.
Solutions come from forward planning and chemistry know-how rather than project management templates. We always keep six months of raw naphthalene in multi-stage tanks, each under nitrogen to reduce oxidation. Regular audits of energy and water use led us to invest in process condensers, recovering heat from crystallizers to preheat charge lines and cut down both cost and greenhouse impact. We respond to new import-export regulations directly with government authorities, not just through trade associations. Our staff in export logistics are cross-trained, so that a sudden change in container availability doesn’t back up production or strand products at the port.
Beyond logistics, market volatility in pricing shakes many suppliers. We address this by refining our process to improve overall yield, so cost fluctuations in naphthalene or sulfuric acid have less impact on final pricing. Our continuous improvement drive is driven by feedback from end users—one paint customer’s complaint about yellowish hue led us to add an extra filtration stage, which brought not only their satisfaction but a color improvement welcomed by our other clients.
2-Naphthol isn’t just an industrial workhorse. Like many aromatic compounds, it brings environmental concerns when poorly handled. We design our plants for closed system generation, capturing vapor phase losses, and returning them to production streams. Wastewater from crystallization and washing cycles passes through active carbon filters and bioreactors before discharge. We run quarterly soil and groundwater checks around our facility, not waiting for regulators to make these requests.
Worker safety comes from decades of learning. Beta-Naphthol dust isn’t overtly toxic at low exposure levels but causes skin and eye irritation on direct contact. Our staff wear fitted protective gear, and we limit open handling of the material by conducting as many transfers as possible in sealed lines. We’ve avoided a single lost-time injury on our 2-Naphthol lines for the past five years—no luck involved, just strict supervision and practical training. Laboratories using our product receive up-to-date Safety Data Sheets and guidance from our technical support team, cutting risks for every link in the handling chain.
Among specialty chemistries, very few products reveal gaps between true manufacturers and resellers as clearly as Beta-Naphthol. Price charts rarely tell the full story. A trader can offer seemingly similar purity and appearance, but can’t verify the route taken to make a batch, or answer how the product behaves in specific textile, pigment, or polymer applications. Customers come back to us not because we advertise best, but because we solve process headaches outside the scope of certificates and certificates of analysis.
Our internal supply chain keeps processes agile. We control material flows, from incoming naphthalene dewaxing to final packaging under inert atmosphere before sealing. The people driving the operations—from old-timers running filtration trains to process engineers refining recycling protocols—hold the unique knowledge born out of repeated daily interaction with both the material and its customers’ needs.
Feedback loops matter. From textile dyers testing shades on fabric samples to rubber compounding chemists dialing in antioxidant loads, we digest feedback and actively improve production. If a customer in Brazil calls about the discoloration risk in high-humidity storage, we adapt packaging and run trials with inert gas fills. This mindset means continuous improvement isn’t jargon—it’s the lived experience of manufacturing, not just dealing in chemicals.
Markets shift, dye trends come and go, synthetic pigments have challenged natural colorants, but nothing replaces Beta-Naphthol’s flexible chemistry for strong, stable hues that last. The product’s role as a core intermediate in so many value chains—pigment, ink, plastic masterbatch, and antioxidant—is a testament to its proven chemistry rather than market inertia.
In an age of digital sales and remote-only suppliers, the practical advantages of buying directly from the producer remain. Our support doesn’t end after shipment leaves the warehouse. We advise on storage, monitor new industrial requirements, partner in R&D, and visit customers’ plants to iron out process snags. Other products come and go with fashion, but Beta-Naphthol’s importance is grounded in practical, repeatable results.
Sustainability targets are shifting the industry, pushing plant owners to minimize footprints and recapture process waste. Our investments in circular water use, renewable energy offsets, and digital process controls don’t just meet regulation—they raise the standard for what a synthetic dye and chemical intermediate plant can accomplish. As a manufacturer accountable to both environmental benchmarks and customer needs, we are committed to providing 2-Naphthol with transparency and traceability. Every step from raw naphthalene to finished, color-stable Beta-Naphthol reflects a commitment to practical chemistry, high quality, and respect for both health and environment.
In our experience, no substitute matches the performance of well-made 2-Naphthol. End users working under strict regulatory oversight—food-safe packaging inks or medical device plastics—trust the source, not just the purity number. We remain dedicated to working with our customers, offering not only a consistent product but also the expertise to help their own processes run reliably and efficiently.
Whether your challenge is finding a dust-free grade, achieving deeper pigment strength, or extending shelf life in tropical distribution, our production experience gives an edge that goes beyond a simple product listing. We stand behind every kilogram shipped—because we made it ourselves, and we know precisely what’s in it.