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

    • Product Name 2-Naphthol
    • Alias beta-naphthol
    • Einecs 202-080-4
    • 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

    991333

    Chemicalname 2-Naphthol
    Molecularformula C10H8O
    Molarmass 144.17 g/mol
    Casnumber 135-19-3
    Appearance White to light yellow crystalline solid
    Meltingpoint 121-123 °C
    Boilingpoint 285 °C
    Density 1.28 g/cm³
    Solubilityinwater 0.74 g/L (20 °C)
    Vaporpressure 0.03 mmHg (25 °C)
    Flashpoint 161 °C
    Pka 9.51
    Ecnumber 205-182-7

    As an accredited 2-Naphthol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 2-Naphthol is packaged in a 500g amber glass bottle with hazard labeling, tamper-evident seal, and a screw cap for safety.
    Shipping 2-Naphthol is shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. It is classified as a hazardous material and must comply with transport regulations. Proper labeling, handling with personal protective equipment, and storage in a cool, well-ventilated area are required to ensure safe transportation.
    Storage 2-Naphthol should be stored in a cool, dry, well-ventilated area away from incompatible substances, such as strong oxidizers, acids, and bases. Keep the container tightly closed and protected from direct sunlight and moisture. Use containers made of materials compatible with organic chemicals. Clearly label storage containers, and ensure access is limited to trained personnel using appropriate safety measures.
    Application of 2-Naphthol
    Purity 99%: 2-Naphthol with purity 99% is used in azo dye synthesis, where it ensures high chromatic purity and batch-to-batch color consistency. Melting Point 122°C: 2-Naphthol of melting point 122°C is used in intermediate manufacturing for organic pigments, where it guarantees uniform reactivity and processing reliability. Particle Size ≤ 50 μm: 2-Naphthol with particle size ≤ 50 μm is used in polymer compounding processes, where it improves dispersion and final product homogeneity. Molecular Weight 144.17 g/mol: 2-Naphthol with molecular weight 144.17 g/mol is used in antioxidant additive formulations, where it delivers predictable stabilization performance. Stability Temperature up to 200°C: 2-Naphthol with stability temperature up to 200°C is used in high-temperature resin synthesis, where it maintains structural integrity during thermal processing. Water Solubility < 0.1 g/L: 2-Naphthol with water solubility < 0.1 g/L is used in hydrophobic coatings applications, where it enhances moisture resistance of the coating layer. Assay ≥ 98%: 2-Naphthol with assay ≥ 98% is used in pharmaceutical intermediate production, where consistent assay levels guarantee dosage uniformity and regulatory compliance. Ash Content ≤ 0.1%: 2-Naphthol with ash content ≤ 0.1% is used in specialty ink formulations, where low ash ensures absence of particulate contamination and nozzle clog prevention. Boiling Point 285°C: 2-Naphthol with boiling point 285°C is used in chemical catalyst systems, where thermal stability at elevated temperatures assures sustained catalytic efficiency. Color Index ≤ 20 (APHA): 2-Naphthol with color index ≤ 20 (APHA) is used in fine chemicals synthesis, where low coloration provides high purity standards for sensitive applications.
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    Certification & Compliance
    More Introduction

    2-Naphthol: Manufacturing Insight and Proper Application

    A Direct View from the Factory Floor

    Every batch of 2-Naphthol that leaves our facility tells a story of careful control and responsibility. In our line of work, the purity and consistency of 2-Naphthol, also known as beta-naphthol, remain the focus in daily operations. Our team handles this aromatic compound at scale, sifting it from raw materials through to the finished crystalline form that so many downstream industries depend upon. The conversation around quality, safety, and purpose runs deep in everything we do.

    Product Model and Manufacturing Details

    We produce 2-Naphthol under tightly monitored conditions that meet the stringent needs of both local and global markets. Our main model falls in the industrial-grade range, with typical purity levels running above 99%, verified by precise HPLC analysis. The white to faintly pink-colored powder demonstrates clear physical integrity that marks it apart from substandard imports or inconsistent batches sometimes found elsewhere. Moisture, ash, and insolubles receive scrutiny at multiple points—details that come not just from a lab, but from hands-on experience and the pressure to deliver a product that customers can trust.

    Role in Industry: Real-World Utility

    The majority of the 2-Naphthol we manufacture feeds directly into the dye and pigment sector. Azo dyestuffs—those vibrant, enduring colors any textile mill manager recognizes—depend on the robust coupling ability of 2-Naphthol in their synthesis. Other industries count on our product for applications in agricultural chemicals and certain pharmaceutical intermediates. We know the downstream effect of even a small deviation in quality standards; the wrong impurity level can throw entire production batches off specification, making waste and cost headaches for customers. That’s why we run rigorous QC at each phase and reject lots that don’t meet our internal thresholds, regardless of wasted effort.

    Not All 2-Naphthol Is the Same: What Sets Our Product Apart

    Walking through the lines and seeing the process up close, it’s easy to dismiss subtle differences that set one lot of 2-Naphthol apart from another. Over years of manufacturing, we’ve come to recognize factors that directly impact application success. Particle size distribution, for example, isn’t just a box to tick for a certificate—it influences how fast the material dissolves and reacts. Dusty or coarse powders, common in poorly handled or old stock, complicate processes and put operators at risk from inhalation. We minimize fine particulate through clean grinding and closed conveyance. 

    Trace impurities pose silent threats. Chlorinated compounds can cause color shifts in dyes or reduced yields in organometallic processes. We avoid high-chloride raw materials and regularly review purification steps. Unreacted naphthalene, a frequent contaminant, gets measured out through gas chromatography.

    For customers comparing 2-Naphthol to other phenolic intermediates, real differences emerge in reactivity, color yield, and environmental profile. Our product—circumspectly free of unnecessary byproducts—simplifies downstream effluent treatment, since purity influences the nature and treatability of waste water. Skipping the detail in this stage not only creates regulatory headaches but also threatens viability for the next generation of dye plants and fine chemical workshops.

    Understanding Specifications Beyond the Certificate

    No amount of paper documentation replaces the weight of daily experience. We have learned the practical side of specifications not by reading, but by doing—year after year. Purity, moisture, and chromatic index sound like routine numbers, but customers often come to us after issues with inconsistent supplies. A 97% purity 2-Naphthol from some global markets seems fine on paper, yet cooked up into pigment, the off-hue becomes glaring. 

    Our average batch lands at 99% or above, providing the backbone chemists expect. Moisture control, often achieved through centrifugal dryers and vacuum ovens, keeps shipments free-flowing and reproducible. We recall a phase where poor drying on our old equipment led to clumping; lessons learned there prompted an upgrade to continuous belt dryers for rapid throughput and better product quality. These little changes, invisible to outsiders, build a product history that can’t be replicated by trading houses or resellers with no skin in the game.

    Health, Safety, and the Human Dimension

    Long gone are the days when chemical makers ignored the personal risks in aromatic compound production. Our work with 2-Naphthol doesn’t just focus on dollars—the process brings real exposure hazards if workers don’t follow protocols. We dedicate resources to local exhaust ventilation, personal protection, and exhaustive operator training. If one failsafe on the powder transfer line trips, a supervisor walks the floor and ensures everything is locked down and safe.

    We never take shortcuts by using subpar solvents in extraction. Each change in the raw material feedstock or process temperature receives a documented review, not because it’s required for compliance, but because it makes sense for those who do the work daily. The permanency of aromatic phenolic smells in the factory persists long after a botched clean-up, cementing the lesson—maintain discipline, respect your team, and put eyes on every risk window.

    Environmental Responsibility and Pragmatic Progress

    Chemical plants don’t operate in a vacuum, and the legacy of naphthalene derivatives lives in local waterways unless managed deliberately. Our investment in multi-stage, closed-loop wastewater treatment and vapor recovery did not arrive overnight. Pressure from environmental agencies and legitimate citizen concern shaped our approach. Customers—especially those in North America and Western Europe—ask tough questions about disposal and emissions. We show them more than paperwork; site tours and third-party audits bear out our actual commitment.

    Use of cleaner, less hazardous catalysts and minimized waste streams not only supports regulatory compliance but has driven efficiency. The residue from distillation isn’t just burned or dumped. We reclaim what’s possible, and ash content gets repurposed internally for energy recovery. Over time, these practices have shifted from being regulatory burdens to value-generating routines.

    Leadership in a Changing Supply Chain

    Much of the 2-Naphthol world supply flows from Asia, where cost pressures collide with rising labor and energy prices. We operate in this environment not by stripping out essentials, but by updating plant technology and maintaining a committed local engineering team. Every year, some new voice in the market claims a more cost-effective process, but beneath the headlines, shortcuts in quality lead to complications along the supply line—recalls, batches held at ports, and ruined customer runs.

    We choose not to compete on spot prices or ambiguous certificates. Instead, we focus on building relationships with our regular users in dyes, pharmaceuticals, and agrochemicals who prize transparency and reliability over headline cost. This approach supports stable employment, allows for long-term planning, and gives our chemists and engineers actual ownership of the product cycle.

    Difference from Similar Compounds in Practice

    Chemists shopping for phenolic intermediates have a variety of options: 1-Naphthol, resorcinol, and a host of other fused-ring aromatics. In real-world application, each offers different strengths. 2-Naphthol stands out in dye synthesis because of its high coupling efficiency and staying power under alkaline conditions. Compared to 1-Naphthol, the orientation of the hydroxyl group at the 2-position lends greater versatility in certain azo dye syntheses. This isn’t just theory—we’ve fielded requests for pigment lines that need 1-Naphthol’s shade but could not deliver the same stability or cost efficiency as 2-Naphthol under actual plant conditions.

    Other relatives in the phenol family present different hazards, melting points, and solubility profiles. Experience has taught our team that 2-Naphthol’s physical resilience during storage—provided it is packed and handled correctly—gives it an advantage for larger importers and manufacturers. Customers who downgraded to lesser-known analogs for price soon returned after failed product launches. It underscores the point: trusted intermediates keep factories running and end users satisfied.

    Our Daily Reality: Handling, Storage, and Distribution

    From the dock to the truck, handling 2-Naphthol is about more than loading bulk bags. We mark each shipment with batch numbers and traceability logs to lend a clear picture in case any quality question arises. Our storage containers use corrosion-resistant liners, and we rotate stock to eliminate exposure to dampness. Years ago, a warehouse leak put an entire quarter’s supply at risk; the lesson stuck, and today we run climate-controlled storage for all high-purity stock.

    Shipment isn’t just a logistics exercise. End users count on tight delivery windows. Our dispatch crew cross-checks each load-out with lab staff, confirming the actual material in real time. Unscheduled field visits to customer sites helped us grasp the impact of even short minor delivery delays: batch shutdowns, missed customer orders, and downstream penalties. The attention to workflow detail at our plant is not about box-ticking for audits—it’s about making sure no surprise holds up someone else’s factory.

    Feedback Loops and Continuous Improvement

    Customers, especially those who use 2-Naphthol in high-stakes processes, provide feedback not only through formal complaint channels, but via the constant back-and-forth with our technical staff. If a pigment run flattens or an unusual odor appears, our product support team investigates every step—from the starting naphthalene lots to the final packed powder. Often, these calls drive subtle process improvements. For example, by tweaking the crystal cooling rate, we improved powder flow and reduced particle caking, pleasing downstream blenders and reducing their waste.

    We learn as much from production complaints as we do from formal R&D projects. Mistakes on the line or missed shipments lead to team reviews, spare-part upgrades, and operator retraining. Our ethos—problems are useful if addressed with open eyes and honest engineering—keeps us improving batch after batch.

    The Road Ahead: Stress, Opportunity, and Innovation

    Rising costs for raw naphthalene and global logistics pressure mean no two years look the same. Adapting plant schedules, prevention of raw material shortages, and steady hiring feed into the background of each production run. The business side walks a thin line: keeping costs at bay while securing investments in newer, cleaner reactors and advanced process controls. In the past, supply crunches forced us to find alternate suppliers, risking performance. Now, we forward-buy and keep safer inventory levels to protect customer commitments.

    We see new opportunities developing with green chemistry approaches and growing regulatory pressure for safer, cleaner dye intermediates. Leadership insists on environmental improvements not as quick-fixes, but as foundational changes, incorporating water reuse systems and cleaner separation methods. These measures have already begun to define which suppliers earn trust in an era of ever-stricter downstream safety standards.

    Guidance for End Users and Technical Partners

    For anyone in the market for 2-Naphthol, we offer more than a commodity. Our years in the field show that success tracks back to predictable, high-purity supply and expert insight on proper handling and use. We encourage customers to review not just the specification sheet but to discuss application needs with experienced technical staff. If a batch seems off, or a process shift calls for a tweak in supply grade, reach out. Real chemical manufacture never stands still—it thrives on the shared pursuit of reliability, safety, and practical progress.

    As one of the teams closest to this molecule, we know the cost of failure and the reward of getting it right, every shipment, every day.