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5-Mercapto-1,2,3-Triazole Monosodium Salt

    • Product Name 5-Mercapto-1,2,3-Triazole Monosodium Salt
    • Alias 1,2,3-Triazole-5-thiol sodium salt
    • Einecs 296-437-5
    • 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
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    Specifications

    HS Code

    986149

    Product Name 5-Mercapto-1,2,3-Triazole Monosodium Salt
    Chemical Formula C2H2N3SNa
    Molecular Weight 127.12 g/mol
    Appearance White to off-white powder
    Solubility Soluble in water
    Melting Point Decomposes above 250°C
    Cas Number 6642-31-5
    Purity Typically ≥98%
    Storage Conditions Store in a cool, dry place
    Synonyms 1,2,3-Triazole-5-thiol sodium salt
    Ph Value Neutral to slightly alkaline (in aqueous solution)
    Hazard Classification May cause irritation to skin, eyes, and respiratory tract

    As an accredited 5-Mercapto-1,2,3-Triazole Monosodium Salt factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 100g of 5-Mercapto-1,2,3-Triazole Monosodium Salt, packaged in a sealed amber glass bottle with tamper-evident cap, labeled for laboratory use.
    Shipping 5-Mercapto-1,2,3-Triazole Monosodium Salt is shipped in tightly sealed, chemical-resistant containers to prevent moisture absorption and contamination. Packaging complies with international transport and safety regulations. The product is labeled as a potentially hazardous chemical and is shipped with proper documentation, handling instructions, and safety data for secure transit.
    Storage 5-Mercapto-1,2,3-Triazole Monosodium Salt should be stored in a cool, dry, and well-ventilated area, away from heat, moisture, and incompatible substances such as strong oxidizers or acids. Store in a tightly closed container to prevent contamination and degradation. Protect from light and keep away from ignition sources. Follow standard safety protocols for chemical storage and handling.
    Application of 5-Mercapto-1,2,3-Triazole Monosodium Salt

    Applications of 5-Mercapto-1,2,3-Triazole Monosodium Salt in Industrial Manufacturing

    As a direct manufacturer, we supply 5-Mercapto-1,2,3-Triazole Monosodium Salt to industrial sectors that require reliable anti-corrosive and metal-protection additives. Our experience covers its integration into critical downstream processes, each with distinct regulatory, formulation, and end-product characteristics. Below we present key application settings grounded in authentic industry usage.

    1. Copper and Alloy Corrosion Inhibition in Closed Recirculating Water Systems

    Industrial water treatment facilities rely on this triazole derivative as a performance-driven copper corrosion inhibitor, especially for recirculating chilled water, cooling towers, and closed-loop heating circuits. The additive forms a self-assembled, adherent film on copper and copper alloy surfaces, safeguarding system integrity under continuous operation and variable chemical environments. Its utility is essential in industrial HVAC plants, power stations, and large commercial infrastructure.

    Industry compliance standards

    • ANSI/AWWA B201 for water treatment chemicals
    • ASTM D1384 for corrosion testing of engine coolants in glassware
    • US EPA guidelines on secondary water additives
    • EU Biocidal Products Regulation (BPR, Regulation (EU) 528/2012) when used in cooling systems

    Typical usage ratio

    • Dosage ranges from 2 to 8 mg/L in circulating water; adjust based on water alkalinity, chloride load, and target protection period.

    Downstream process integration

    • Engineers add the triazole salt to make-up and recirculating water streams during batch chemical dosing or continuous feed via automated treatment skids.

    Final product types

    • Formulated water treatment chemicals
    • On-site treated cooling water for data centers, steel mills, and energy plants

    2. Anticorrosion Formulation in Engine Coolants and Antifreeze Concentrates

    This additive finds targeted use in automotive and industrial heat exchanger fluids where non-ferrous metal protection is paramount. Triazole compounds outperform benzotriazole when sodium content control, rapid film formation, and minimal foaming are necessary. As a result, automotive OEMs and chemical blenders adopt it for high-demand applications such as hybrid engine coolant packages and long-life antifreeze solutions.

    Industry compliance standards

    • ASTM D3306 for ethylene glycol-based engine coolants
    • OEM coolant specifications (e.g., Ford WSS-M97B51-A1, GM GMW3420)
    • EN 2838 (for materials compatibility in heat transfer fluids)
    • ISO 22241 for DEF fluid component compatibility (if used in proximity to copper)

    Typical usage ratio

    • Typical addition at 0.03–0.12 wt% in antifreeze/concentrate formulations, with precise content governed by fluid chemistry and anticipated exposure to copper components.

    Downstream process integration

    • Formulators introduce the triazole salt at the blending stage when compounding corrosion inhibitor packages before final dilution and bottling.

    Final product types

    • Monoethylene glycol (MEG) and monopropylene glycol (MPG) coolants
    • Engine antifreeze concentrates
    • Premixed automotive and heavy-duty vehicle coolants

    3. Surface Finishing and Metalworking Fluids

    Metalpart manufacturers require precise corrosion inhibitors in pickling, cleaning, and finishing baths to prevent surface attack on copper alloys during processing or long-term storage. The monosodium salt improves corrosion resistance without causing staining or interfering with subsequent coating or plating processes, addressing strict requirements for electronics, precision engineering, and aerospace supply chains.

    Industry compliance standards

    • ISO 12696 (Cathodic protection of steel in concrete and liquid environments)
    • JIS H8625 for anodic oxidation coatings on aluminum and aluminum alloys
    • RoHS Directive (2011/65/EU) for metal surface treatment chemicals
    • REACH (EC 1907/2006) chemical safety requirements

    Typical usage ratio

    • Concentrations of 0.05–0.20% by volume in immersion or rinse baths; adjusted based on processing time and bath temperature.

    Downstream process integration

    • Operators add the inhibitor to final rinsing or passivation stages following acid pickling or pre-coating treatments.

    Final product types

    • Finished copper and brass parts for connectors and terminals
    • Precision-machined components for electronics or medical equipment
    • Metal stock with protective passivation films for export and long-term warehousing

    4. Photoresist Stabilizer and Anti-Tarnish Agent in Electronics Manufacturing

    Electronics fabricators employ this triazole derivative as a chemical photoresist stabilizer and as a tarnish inhibitor in PCB and semiconductor production. It protects copper features during etching, stripping, and transport, ensuring signal fidelity and solderability in finished circuit assemblies. Its compatibility with microfabrication chemistries and process water ensures no interference with high-purity manufacturing requirements.

    Industry compliance standards

    • IPC-6012 (Qualification and Performance Specification for Rigid Printed Boards)
    • IEC 61249 (Materials for printed boards)
    • UL 796 (Printed-Wiring Boards)
    • JEITA ET-7304 for eco-friendly PCB finishing

    Typical usage ratio

    • Introduced at 0.02–0.10% in photoresist or rinse baths, with concentration depending on device miniaturization and copper thickness.

    Downstream process integration

    • Used in final rinse after copper etching or as an additive to antitarnish dip tanks post-cleaning, before packaging and shipment.

    Final product types

    • Printed circuit boards for telecommunications and consumer devices
    • Sputtered copper layers for integrated circuits
    • High-reliability multilayer PCBs for automotive or aerospace electronics

    5. Lubricant Additive for Wire Drawing and Metal Forming

    Producers of specialty lubricants for copper wire drawing and brass tube extrusion incorporate the monosodium triazole as a secondary anti-corrosive to manage residual stress and prevent surface degradation during high-speed forming. Its water-solubility and non-foaming profile allow easy removal in subsequent degreasing processes, meeting the demands of continuous production after-treatment.

    Industry compliance standards

    • ISO 6743-13 (Lubricants, industrial oils and related products—Class L)
    • ASTM D4627 (Standard Test Method for Iron Chip Corrosion Inhibition)
    • CEPE guidelines for industrial lubricant composition
    • REACH (EC 1907/2006) registration for downstream formulation

    Typical usage ratio

    • Levels commonly range from 0.10–0.25% by mass in lubricant concentrate formulations, modified based on severity of metal forming and copper content in substrate.

    Downstream process integration

    • Lubricant manufacturers blend the triazole salt into aqueous- and oil-based concentrates before dilution and application in wire drawing, rolling, or extrusion lines.

    Final product types

    • Drawing lubricants for fine copper and brass wire
    • Forming oils for tube and busbar manufacturing
    • Ready-to-use coolant-lubricant blends for non-ferrous metal forming
    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing 5-Mercapto-1,2,3-Triazole Monosodium Salt: Field Notes from the Chemist’s Bench

    Understanding Its Place in Modern Chemistry

    5-Mercapto-1,2,3-Triazole Monosodium Salt has established itself as a workhorse in both laboratory research and industrial production settings. We have spent years perfecting methods for preparing, isolating, and packaging this compound to maintain purity and stability, reflecting the real challenges chemists encounter outside textbook idealizations. End-users value precision, and that only comes with experience in the production environment—and with this compound, a straightforward process rarely stays so.

    Molecular Identity and Production Insights (Model: 99MT-Na1)

    This product, which many still call by its shorthand “MTT-Na” on the shop floor, belongs to a family of heterocyclic compounds known for their thiol functionality and ease of transformation under mild conditions. Our current top-tier model, 99MT-Na1, offers a consistent minimum purity of 99% by HPLC, but achieving this involves precise pH adjustments, controlled solvent exchanges, and close temperature monitoring on large scales. The monosodium salt form is often overlooked by newcomers, who may underestimate the operational headaches with water solubility, foaming, and sodium counterion content on process yields. Through regular batch testing, we reduce unwanted byproducts, so what leaves our warehouse performs as expected, whether blended into an aqueous system or used directly in advanced synthesis.

    Applications That Matter

    In the field, practical uses of 5-Mercapto-1,2,3-Triazole Monosodium Salt range widely. Water treatment specialists, for example, favor this compound as a corrosion inhibitor, especially in recirculating cooling systems. During scale-up, our partnerships with engineering teams allowed us to tailor the salt’s solubility profile, so it disperses rapidly without additional additives or premixes. Many of our partners in metalworking and oilfield services come back year after year for the same reason—performance doesn’t drift batch to batch. Beyond corrosion protection, several teams exploring new anti-microbial coatings have started relying on it as a chemical building block. Our internal chemistry teams have seen that the triazole ring system provides a resilient core structure, suitable for downstream derivatizations, often with minimal side reactions.

    Real-World Performance in Industrial Environments

    Plant operators often face crude realities that literature glosses over—ambient humidity, inconsistent raw material quality, and legacy equipment. For us, stability is more than just a number on a spec sheet. We run long-term aging tests for each batch of 5-Mercapto-1,2,3-Triazole Monosodium Salt, storing samples under varied conditions, so end-users get a product that doesn’t disappoint after a few months on the shelf. Experience has taught us the risks: precipitate formation in colder climates, color changes under UV exposure, and even subtle variations in flow properties that throw off automatic dosing pumps. Each issue forced us to revisit not only our final processing steps but even upstream solvent recovery and filtration protocols.

    What Sets This Product Apart from Other Mercapto- or Triazole-Based Salts

    Competition is fierce, and many related compounds exist: benzotriazole sodium salts, tolutriazole derivatives, or the unsubstituted mercaptotriazole base. Many customers approach us after disappointing trials with these analogues. Their main complaint centers around unpredictable solubility and unreliable availability of functional thiol groups. With 5-Mercapto-1,2,3-Triazole Monosodium Salt, the thione/thiol tautomer ratio stays stable, even in the presence of hard water or complex mixtures, which cuts down on foaming and ensures the active group remains ready for metal surface interaction. We invested in in-line spectroscopic tools because colorimetric testing alone misses subtle impurity build-ups that erode long-term reliability.

    Another reality: benzotriazole-based inhibitors offer less sulfur reactivity, leading to weaker passivation layers in certain environments. The monosodium salt chemistry, unlike the base form or multi-alkali variants, allows for direct introduction into waterborne systems with minimal pH drift and virtually no need for additional chelators. If formulators need compatibility with copper, mild steel, or specialty alloys, our batches pass extended soak tests—something bench-scale vendors rarely bother with. In our experience, multi-component additive packages can fail if the triazole component drifts in quality; this product’s consistent profile helps avoid costly reformulations.

    Technical Breadth Meets Relatable Usage—Feedback from the Trenches

    Most chemists in product development crave knowledge beyond fine print and sales pitches. We have welcomed dozens of on-site audits, where technical visitors are often surprised by the hands-on nature of our process controls. During one such audit, engineers noticed our thermal mapping system catches even minor reactor hotspots, reducing impurity formation. A problem, they said, that had plagued prior suppliers and caused erratic corrosion protection. Well-controlled exotherm, combined with careful quench-point sodium addition, ensures the final product’s reproducibility.

    This product goes into applications that touch daily life but rarely make headlines. Engineers at regional water utilities trust 5-Mercapto-1,2,3-Triazole Monosodium Salt to extend pipe service life without extensive maintenance downtime. Metal finishing lines report improved surface shine and fewer defects, thanks to reduced sulfur loss. And in advanced materials research, the triazole backbone has become a recurring motif in new functional polymer designs, a trend confirmed by steady order patterns from university labs and R&D divisions.

    Weighing Value Beyond Commodity Pricing: Lessons from Continuous Manufacturing

    Every plant manager faces the spreadsheet reality of raw material costs, batch yields, and unplanned downtime. Our production lines run on a semi-continuous basis, which helps manage variable raw material input quality. We built redundancy into our purification loops, so if a solvent lot falls out of spec, only one segment sees impact while the rest of the system keeps turning out high-consistency batches. This approach came after years of piloting, and makes a difference for customers whose own supply chains cannot tolerate slips in quality. Recent years saw spikes in demand during regulatory crackdowns on less environmentally friendly inhibitors; having a validated process gave us room to scale up quickly.

    Inventory managers benefit from the consistent particle size and bulk handling profile of our monosodium salt, which flows evenly without caking, a factor often overlooked by those who have never unloaded a full truckload. Careful moisture analysis during packaging stops hidden clumping during long shipments, saving our distributors rework and lost stock. As a manufacturer, we carry the responsibility for every drum or bag—failures trace straight back to us, and we accept that accountability.

    Facing Regulatory, Environmental, and Safety Pressures—as Only a Producer Can

    Regulatory landscapes shift quickly, often driven by emerging data on environmental persistence and bioaccumulation. We have faced queries from environmental agencies about the fate of 5-Mercapto-1,2,3-Triazole Monosodium Salt in aquatic settings. Soil and water pathway studies show low adsorption in most cases, but the thiol group does interact with certain toxic metal residues, leading to improved immobilization in remediation applications. We track REACH updates and domestic chemical control lists, maintaining open files on all relevant registration numbers. Our in-house team regularly reviews literature to spot early warning signals from regulatory bodies—no one wants to find out at customs that a shipment is suddenly non-compliant.

    Worker safety is not negotiable. Sodium salt forms can dust easily under dry conditions, so our facility upgraded vacuum transfer instead of open pouring, supported by high-volume local exhaust. Operators receive real, hands-on training tailored to each process zone, because no two production lines are exactly the same. Safety data on-hand for our teams is always the latest version. We share best practices with our major customers, because safe handling streamlines everyone’s operations over the long haul.

    Continuous Improvement: Listening to Partner Feedback and Embracing Innovation

    Feedback from downstream partners has pushed our team to refine not only product but full customer experience. Several years ago, reports surfaced of minor yellowing in formulations under high-intensity UV curing. Subsequent cross-lab trials identified the cause as a trace impurity unique to our then-current sodium procurement process. Changing the supplier required a lengthy validation, but now our sodium addition meets stricter identity thresholds. More recently, specialty ink formulators have asked for reduced trace chloride content to avoid print head corrosion. Our filtration stage, tweaked after hours of maintenance team feedback, now ensures lower halide burden than before.

    New fields of application keep emerging. One pharmaceutical research group documented late-stage derivatizations using our monosodium salt as a core thiol provider, reporting few off-notes due to reliable batch consistency. Another team working in elastomer manufacturing leveraged the reactivity profile to anchor functional groups onto backbone polymers, resulting in improved wear resistance. Every month, we receive new requests for custom pack sizes and even altered counterions—and we answer honestly about what our equipment can and cannot produce without major risk to purity or yield.

    Why Consistency and Clarity Build Trust in the Chemical Industry

    Long-term buyers, whether from water utilities, automotive lines, or academic research, rely on more than certificates of analysis. Trust builds through direct communication, forthright answers, and transparency about test data. We encourage open technical visits and audits, showing where we monitor and intervene to ensure the purity and identity of 5-Mercapto-1,2,3-Triazole Monosodium Salt. Third-party labs confirm our numbers, and we routinely requalify against finished formulations from our bigger clients. During periods of global supply tightness, holding to confirmed lead times and reserved batch numbers—delivered as promised—keeps our client relationships steady.

    This level of service comes from teams who know both chemistry and logistics. After all, nobody enjoys a surprise in the middle of a regulatory review or downstream batch-up. Shipments are accompanied by real-time data for active batch details, and we keep lines of communication open for troubleshooting. Our warehouses operate on FIFO principles and tie in directly with master batch records for seamless recall if needed—thankfully, rare, but never optional.

    Looking at the Road Ahead—Future Development and Customer Partnerships

    The markets we serve—water treatment, metallurgy, advanced materials, electronics, and others—change quickly. New performance targets, increased focus on lifecycle environmental burdens, and demands for even greater batch traceability keep us on our toes. We invest in pilot plant upgrades and analytical instrumentation to stay ahead, so our partners in R&D and production stay supplied without compromise. Our scientists work on alternate triazole derivatives and greener process options, incorporating renewable feedstocks where product profile allows. Input from real users guides these efforts: better corrosion inhibition in cold-loop systems, improved compatibility with multi-metal environments, and greater stability during prolonged storage all come from requests on the factory floor.

    We do not claim to have solved every challenge with 5-Mercapto-1,2,3-Triazole Monosodium Salt, but we commit to ongoing improvement, fact-based quality control, and a direct line to the people who trust our product to keep their operations running smoothly. Every kilogram we ship reflects years of hard-earned know-how and continuing partnership. Our team stands ready to collaborate on tomorrow’s technical demands, just as we have for decades in chemical manufacturing.