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5-Nitrobenzotriazole

    • Product Name 5-Nitrobenzotriazole
    • Alias 5-Nitro-1,2,3-benzotriazole
    • Einecs 221-838-5
    • 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

    765460

    Chemicalname 5-Nitrobenzotriazole
    Casnumber 636-94-2
    Molecularformula C6H3N4O2
    Molecularweight 163.12 g/mol
    Appearance Yellow to orange crystalline powder
    Meltingpoint 152-156°C
    Boilingpoint Decomposes before boiling
    Solubilityinwater Slightly soluble
    Density 1.65 g/cm³
    Purity Typically ≥98%
    Storagetemperature Store at room temperature, in a dry place
    Smiles C1=CC2=NN=NN2C=C1[N+](=O)[O-]
    Ecnumber 211-198-7

    As an accredited 5-Nitrobenzotriazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 5-Nitrobenzotriazole, 100g, is packaged in a sealed amber glass bottle with a secure screw cap and hazard labeling.
    Shipping 5-Nitrobenzotriazole is shipped in tightly sealed containers to prevent moisture and contamination. It should be clearly labeled and stored in a cool, dry, and well-ventilated area, away from incompatible substances and ignition sources. Compliant with relevant safety and transport regulations, it may require hazardous material documentation during shipping.
    Storage 5-Nitrobenzotriazole should be stored in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and direct sunlight. Keep the container tightly closed and protected from moisture. Store separately from incompatible substances such as strong oxidizers and acids. Use appropriate chemical-resistant containers and clearly label them to prevent accidental exposure or confusion.
    Application of 5-Nitrobenzotriazole

    Applications of 5-Nitrobenzotriazole in Industrial Manufacturing

    5-Nitrobenzotriazole serves as a specialized chemical intermediate and additive in a narrow range of high-value industrial applications. As the direct producer, we supply this raw material primarily to sectors where its unique properties—such as metal surface passivation, corrosion inhibition, and copper stabilization—deliver concrete value. Below, we detail the principal downstream sectors using this compound, their compliance framework, practical incorporation, and the final products achieved at an industrial scale.

    1. Copper and Copper Alloy Corrosion Inhibition in Closed-Loop Cooling Systems

    Engineers in industrial cooling water loop maintenance use 5-Nitrobenzotriazole as a highly selective inhibitor for copper and copper alloy surfaces. Plants employ it where conventional benzotriazole inhibitors provide insufficient resistance under high-halide or elevated temperature conditions, especially in power generation and petrochemical recirculating water systems. Dosing occurs in pre-treatment or continuous injection, ensuring persistent metal protection during extended operation cycles.

    Industry compliance standards

    • ASTM D1384 (Corrosion Test for Engine Coolants in Glassware)
    • GB/T 8705-2008 (Test Methods for Corrosion Inhibitors Used in Industrial Water Systems)
    • ISO 8044:2020 (Corrosion of Metals and Alloys—Basic Terms and Definitions)

    Typical usage ratio

    • 5–20 ppm, with higher doses up to 40 ppm applied in severe halide environments or high-flow installations; dosage adjusted based on copper ion analysis and system turnover rates

    Downstream process integration

    • Dosed directly into the make-up water tank or circulated via automatic chemical feed pumps; compatibility checks required when mixed alongside nitrite, azole, and molybdate blends

    Final product types

    • Corrosion-inhibited glycol-based heat transfer fluids
    • Formulated multi-metal industrial coolant additives
    • Plant-scale chilled water treatment solutions for HVAC and process cooling

    2. Chemical Surface Treatment for Printed Circuit Board (PCB) Manufacturing

    PCB manufacturers adopt 5-Nitrobenzotriazole in process baths to passivate copper circuitry prior to soldermask application, helping to control oxide growth and preserve circuit integrity during storage or production pauses. The compound achieves surface uniformity and protects copper features from atmospheric or process solution attack during assembly preparation, directly impacting long-term board performance and reliability.

    Industry compliance standards

    • IPC-6012 (Qualification and Performance Specification for Rigid Printed Boards)
    • RoHS Directive 2011/65/EU (for chemical process residues on PCBs)
    • JESD625B (Requirements for Handling Electrostatic-Discharge-Sensitive Devices)

    Typical usage ratio

    • 0.3–2.0 g/L in aqueous passivation baths; concentration determined by copper thickness and exposure time, with continuous monitoring in conveyorized chemical lines

    Downstream process integration

    • Introduced immediately following copper etch and rinse or after micro-etch cleaning, via immersion, spray, or flood application; followed by DI water rinsing and controlled drying prior to photoresist or soldermask steps

    Final product types

    • Single- and multi-layer rigid printed circuit boards for telecommunications
    • Automotive and high-reliability PCBs
    • Flexible printed circuits requiring copper protection during lamination

    3. Copper Electroplating Brightener Intermediate

    Electroplating additive formulators employ 5-Nitrobenzotriazole as a brightener intermediate to enhance deposit quality on copper and copper alloy components. Its inclusion results in high-gloss, ductile and uniform metal layers, especially for electronics or decorative applications. This material supports stable bath performance under stress from continuous operation in mass finishing plants and automated lines.

    Industry compliance standards

    • ISO 4527 (Electrodeposited coatings of copper and copper alloys on engineering components)
    • GB/T 13911-2002 (Copper and copper alloy coatings by electroplating)
    • DIN EN ISO 19598:2016 (Electroplated coatings—quality criteria and test methods)

    Typical usage ratio

    • 30–200 mg/L, dependent on desired coating thickness and brightness, as well as plating current density; batch or slow-feed addition recommended for high-volume tanks

    Downstream process integration

    • Added to copper plating electrolyte after primary levellers or grain refiners, often in multi-component additive systems; QC personnel sample bath for organics and adjust feed rates based on spectral analysis

    Final product types

    • Plated copper foils for lithium-ion battery current collectors
    • Connector pins and busbars for automotive and electronics
    • Precision decorative copper-plated hardware for building and consumer goods

    4. Specialized Additive for Metalworking Fluid Formulation

    Manufacturers of advanced semi-synthetic and synthetic metalworking fluids incorporate 5-Nitrobenzotriazole as a targeted copper passivator, particularly in formulations intended for brass, bronze, and multi-metal cutting operations. It minimizes copper and zinc leaching into the working fluid, reducing tool staining and optimizing coolant longevity. Its usage is often paired with stabilizers and anti-wear agents for complex machining jobs.

    Industry compliance standards

    • ASTM D4627 (Standard Test Method for Iron Chip Corrosion for Water-Dilutable Metalworking Fluids)
    • REACH Regulation (EC) No 1907/2006—Safety data reporting and chemical inventory for all base oils and additives
    • TRGS 611 (German Technical Rules for Hazardous Substances—Metalworking fluids)

    Typical usage ratio

    • 40–160 ppm in final fluid concentrate, depending on the proportion of copper alloys machined and sump turnover rate; laboratory titration used to establish minimum effective use

    Downstream process integration

    • Incorporated during the final blending stage of metalworking fluid manufacturing, after primary base oil and surfactant dissolution; rigorous mix time ensures homogeneity before packaging

    Final product types

    • High-performance coolants for brass and bronze machining
    • Multi-metal cutting and grinding fluids in automated CNC workshops
    • Long-life semi-synthetic lubricants for complex alloy processing
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    Certification & Compliance
    More Introduction

    5-Nitrobenzotriazole: Precision from Source to Process

    Bringing Consistency to Chemical Synthesis

    In our facility, every batch of 5-nitrobenzotriazole gets tracked from the raw material tanks to the final packaging bay. As the team shaping these molecules, we put deep care into keeping each drum at peak purity and dust-free, so what you see at the lab bench gives you the same clean result run after run. We do not subcontract or repack; every container carries material we have synthesized, dried, milled, and inspected ourselves.

    Pushing for Purity Above Commercial Norms

    Everyone expects a basic technical grade for bulk needs. Over years of output, customer feedback, and internal process tweaks, we have reached levels of purity that cross the 99.5% threshold. Careful separation methods and well-adapted reactors keep side products and tars out—guaranteeing less batch variability and minimal off-odor. This approach keeps spectroscopists happy and avoids the orange tint that can show up if trace impurities slip through. Our 5-nitrobenzotriazole usually appears as an off-white to pale yellow crystalline powder, free from visible agglomerates or clinging dust. Moisture content stays well below 0.2%, which plays a critical role in both storage stability and downstream use, while particle size distribution remains tight due to post-drying sieving and real process feedback.

    How Our 5-Nitrobenzotriazole Fits Into Industrial Chemistry

    For some manufacturers, 5-nitrobenzotriazole is a must-have additive to boost corrosion resistance, especially in water-based formulations and metalworking fluids. By delivering such consistent quality, we help coatings and lubricants perform without foaming, turbidity, or precipitation. Round-the-clock checks on solubility and melt behavior give end-users a smoother route from formula design to finished drum.

    In fine chemical synthesis, the clean cut of our product really pays off—spurring stable formation of sensitive heterocycles or supporting the synthesis of advanced pharmaceutical intermediates. Chemists see sharp NMR and HPLC signals, so there’s no wasted time cleaning up origin noise. What matters most is repeatability; a trial or pilot lot sourced last quarter matches the output we ship today. If your team handles scale-up, you know that one stray contaminant can throw off yields, trigger filter blockages, or force extra washing cycles. Our own engineers have solved these pain points in our lines. By sharing those lessons downstream, we save partners time, solvent, and labor.

    Comparing With Non-Nitrated Benzotriazoles and “Generic” Nitro Grades

    Pure 1,2,3-benzotriazole brings its own set of properties, especially for cooling systems or electronics. 5-nitrobenzotriazole stands apart in both reactivity and protection performance, holding stronger under harsh oxidative or acidic cycles. The nitro group not only tightens inhibition but also anchors the molecule for use in regioselective organic synthesis steps.

    Over the years we have sampled alternatives from resellers or overseas brokers, and while many meet bulk standards, they often arrive with a broader melting range, heavier dusting, and inconsistent batch records. That’s not just an issue on paper. Pour uneven powder into your reactor or blend, and you wind up chasing variability with extra filtration or dissolution. Our batches undergo in-house QC and every shipment comes with supporting spectra for traceability. The peace of mind for a production chemist or process developer is real.

    Specifications Informed By Field Testing, Not Just Literature

    We never rely on older literature claims or secondary quotations for spec sheets. Years of field returns and pilot requests have shaped our real-world thresholds. For example, we set our melting point range tight at 153–157°C, checked by multiple operators and confirmed under the same heat ramp seen in actual plant use.

    Moisture tightening has been another lesson. Hydrated product can cake, slow down dosing, wreck dosing lines, or mislead formulation steps for liquid blends. By aiming for residual moisture below 0.2%, our containers open clean and free flowing, no matter the humidity at your facility.

    Each shipment includes batch-level GC or LC-MS checks for organic volatile traces, so you don’t have to wonder about hidden residuals. For the rare customer looking for ultralow metal fractions, we offer lots further refined with chelating washes and high-efficiency filtration.

    Choosing Genuine Source Over Brokered Supplies

    Any R&D or production chemist tracking yields or troubleshooting off-hours downtime knows that buying from a direct source changes the whole game. Brokered material can pass through dozens of hands, and even a certificate with a big-name broker’s logo doesn’t guarantee a smooth plant campaign.

    From the raw nitrobenzene input, our process routes go straight through our closed-loop reduction and cyclization reactors. There’s no outsourcing to sub-suppliers, and we document every addition, temperature ramp, washing step, all the way to drum closure. Not every batch comes out perfect—instead, internal lots that fall short of spec get redirected into other streams or reprocessed until they hit grade.

    We hear often from partners who switched after “cheaper” lots gummed up their lines or added hours of cleanup. The cost savings from a direct batch—fewer complaints, less downtime, and no last-minute rush reorder bills—becomes obvious over a few quarters. Trouble-free skids and clean CIP cycles aren’t just luck; they start at the source.

    End-Uses Shaped by Ongoing Industry Collaboration

    Decades of proximity to our industrial and technical users mean we see the feedback loop on every production change. 5-nitrobenzotriazole finds its most regular applications in:

    Some teams have tested it in fuel additives, painting primers, or as a stabilizer in sensitive formulations. We share data and samples for new use cases, making process tweaks based on real lab or plant behavior rather than marketing claims. If a customer raises an unexpected performance issue, our lab gets right on reproducing it, often leading to improved purification or even custom grades.

    Meeting Demand for Both Bulk and Specialty Volumes

    We run production both in multi-tonne scale and in smaller “pilot plant” modular reactors, depending on customer need. Bulk users take advantage of our bulk-silo and lined-drum packaging, while R&D innovators and high-value applications draw from our small-batch refined grades. Custom lots for regulated or highly sensitive processes are packaged in blue-analyzed containers under nitrogen blanket, with full chain-of-custody documentation.

    Because we control all scale-up routes, turnarounds for new specs or urgent fill-ins can hit the loading dock in days, not weeks—our plant managers make those real-time calls because they see the inventory move in person. This removes the lag, confusion, and out-of-stock risk that follows third-party inventory chains.

    Safety, Storage, and Long-term Reliability at the Producer’s Bench

    Having handled every storage, transit, and end-user scenario ourselves, we understand main pain points: 5-nitrobenzotriazole requires dry air exposure, correct stacking, and temperature monitoring, or you’ll see caking, darkening, and sometimes a sharp increased odor. We stack pallets in semi-conditioned holding, never direct sunlight, and line every drum with antistatic liners.

    By emphasizing good labeling and full product traceability, nobody winds up tracing mystery bags at inventory audit time. Expiry or off-spec risks are flagged in our own warehouse, far upstream of your receiving dock. Because we never store beyond six months, every load offers the freshest available, without relying on retested “old stock.”

    Real Problems, Real Fixes: Process Innovation Through Feedback

    Corrosion inhibitor blend producers shared with us years ago that certain hard water mixes developed haze or sludge. We replicated the exact water chemistry, spiked variable EC salts, and tuned drying and filtration steps until users reported clean dilution and no visible deposits. These aren’t adjustments made in a test tube—they’re direct fixes for the challenges reported by those who actually mix and use the product in plant cycles.

    In another case, labs making specialty dye intermediates noticed side color in their final output. We modified fractional crystallization to squeeze out traces of highly colored side impurities. Now, both large and small users benefit from lessons learned across industry segments. Our product team shares these improvements across all current and new lots.

    Handling OSHA or REACH compliance isn’t just a sticker on the drum. Before regulatory updates filter down, we pre-test all new batch outputs so our partners don’t find surprise out-of-spec residues or flagged hazards during periodic inspections. We pass along actual compliance certificates and contaminant data, not just templated printouts.

    Why Quality at the Source Outperforms “Cheaper” Alternatives

    Every chemical manager has seen the lure of low unit prices. Yet downtime, contamination, and customer complaints quickly erase short-term savings. Our plant’s internal QA team tracks every outgoing shipment and compares return rates and performance data. We rarely see returns, and almost all of those relate to shipping, not the batch itself. Equipment stays clean, dosing runs smooth, and process engineers spend more time optimizing yields rather than troubleshooting off-spec inputs.

    A reliable supply chain that starts at synthesis, coupled with real process transparency, pays for itself through efficiency gains, fewer breakdowns, and the kind of trust that lets formulators plan months out. End-users who tried cutting corners on raw inputs often share their switch-back stories—a useful reminder that in critical blends, process reliability depends on more than a spec sheet.

    Product Evolution Driven by Data and Field Observations

    Since our founding, we’ve kept production data and real-world user outcomes side by side. Our technical group collects feedback from both global companies and small-scale innovators, capturing details such as filterability, dissolution times, and shelf stability under real—not just standard—conditions. Data from every field complaint and every customer suggestion goes back into the manufacturing pipeline.

    A few years ago, certain sectors required an ultra-low-ash grade for electronics. Our team reevaluated purification steps, added targeted washing, and introduced a new quality class that now supports both high-end corrosion inhibitors and fine chemical users who need even tighter specs. We didn’t make this “because the market said so,” but because engineers and chemists demanded it.

    The Value of Direct Access and Partnership

    Those who buy directly from us—without any middle steps, markups, or repackaging—gain immediate access to our technical experts. We offer pre-shipment sampling, full certificates for each lot, and open dialogue on application tweaks. Our own chemical engineers man the advisory lines, ready to help adjust formulas or troubleshoot new blends. Nobody wants surprises in production, so we make performance issues a priority.

    Every successful partnership with a customer shows up as an improved product for everyone. Tracking patterns across many users, we can better predict supply needs, handle custom specs, and refine shelf-life predictions. That level of engagement and adaptability sets us apart from bulk resellers and brokered inventories.

    Looking Ahead: Sustainably Manufactured, Globally Trusted

    Modern chemical manufacturing faces more scrutiny and pressure to reduce emissions, manage waste, and safeguard worker safety. We integrate these values in everything from solvent recapture to energy-saving agitated dryers. Waste streams get treated or recycled, not just dumped or outsourced. By keeping all synthesis in-house, avoiding subcontractors or shadow units, we can ensure every process step meets our environmental standards and supports a cleaner future.

    Regulatory standards grow tighter every year, especially for export markets. We maintain leading compliance across batches and communicate updates to our users, sparing them the burden of unpleasant surprises at customs or import review. Our internal lab stays ready for new toxicology screens and keeps dossiers on both known and emerging regulations.

    Choosing 5-nitrobenzotriazole from a dedicated manufacturer means relying on the people who know its synthesis chemistry inside out, respond to customer feedback, and innovate not only for profit, but also for genuine process improvement and sustainability goals. Those who have partnered with us see the difference in every bottle, from ease of handling to performance in the field.