Hubei Xingfa Chemicals Group Co., Ltd
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Paraquat Dichloride TK

    • Product Name: Paraquat Dichloride TK
    • Chemical Name (IUPAC): 1,1'-Dimethyl-4,4'-bipyridinium dichloride
    • CAS No.: 1910-42-5
    • Chemical Formula: C12H14Cl2N2
    • Form/Physical State: Liquid
    • Factroy Site: No.58 Gaoyang avenue, Gufu town, Xingshan county, Yichang, Hubei, China
    • Price Inquiry: sales3@liwei-chem.com
    • Manufacturer: Hubei Xingfa Chemicals Group Co., Ltd
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    Specifications

    HS Code

    879834

    Chemical Name Paraquat Dichloride
    Common Name Paraquat
    Chemical Formula (C12H14N2)Cl2
    Molecular Weight 257.16 g/mol
    Physical State Solid (technical material)
    Color Pale yellow to colorless
    Odor Odorless
    Solubility In Water Very soluble
    Use Category Herbicide
    Mode Of Action Non-selective contact herbicide
    Toxicity Highly toxic if ingested or inhaled
    Cas Number 1910-42-5
    Melting Point Approximately 175°C (decomposes)
    Storage Conditions Store in a cool, dry place away from incompatible materials
    Stability Stable under normal conditions

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

    Packing & Storage
    Packing The packaging for Paraquat Dichloride TK is a sturdy, 20-liter blue plastic drum with hazard markings and clear labeling for safety.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Paraquat Dichloride TK: Typically 22-24 metric tons loaded in 200-liter drums or IBC tanks, securely palletized.
    Shipping Paraquat Dichloride TK is shipped in tightly sealed, corrosion-resistant containers, labeled according to hazardous material regulations. Transport is conducted by certified carriers specializing in toxic chemicals, ensuring secure handling and spill prevention. Safety Data Sheets accompany each shipment, and documentation complies with international and local transportation standards for hazardous substances.
    Storage Paraquat Dichloride TK should be stored in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as food, feed, and oxidizing agents. Keep the container tightly closed and properly labeled. Store it in a secure, locked facility inaccessible to unauthorized personnel, children, and animals to prevent accidental exposure and environmental contamination.
    Shelf Life The shelf life of Paraquat Dichloride TK is typically 2 years if stored properly in original, tightly sealed containers.
    Application of Paraquat Dichloride TK

    Purity 42%: Paraquat Dichloride TK Purity 42% is used in pre-emergence weed control in soybean fields, where rapid desiccation of broadleaf weeds is achieved.

    Stability 55°C: Paraquat Dichloride TK Stability 55°C is used in tropical plantation weed management, where consistent herbicidal action is maintained under high-temperature conditions.

    Particle Size 90 microns: Paraquat Dichloride TK Particle Size 90 microns is used in foliar spray applications, where uniform droplet distribution enhances herbicide contact efficiency.

    pH 6.0: Paraquat Dichloride TK pH 6.0 is used in horticultural crop row maintenance, where minimized phytotoxicity to non-target species is ensured.

    Solubility 100% in water: Paraquat Dichloride TK Solubility 100% in water is used in manual backpack spraying for rice paddies, where complete dissolution ensures residue-free application.

    Density 1.1 g/cm³: Paraquat Dichloride TK Density 1.1 g/cm³ is used in mechanized aerial spraying, where optimal flow rates improve coverage uniformity.

    Emulsifiability 98%: Paraquat Dichloride TK Emulsifiability 98% is used in mixed herbicide tank applications, where stable emulsions prevent nozzle clogging during large-scale operations.

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    Certification & Compliance
    More Introduction

    Paraquat Dichloride TK: A Manufacturer’s Perspective

    Understanding Paraquat Dichloride TK and Its Role in Modern Agriculture

    Paraquat Dichloride TK has stood as a cornerstone in herbicide production for many years. In an industry defined by reliability, real-world performance, and farmer trust, we have seen Paraquat Dichloride in its technical (TK) grade emerge as an unshakable workhorse. Our team remains committed to manufacturing this compound with strict adherence to proven process controls and raw material quality, ensuring farmers and agrochemical formulators receive a product that delivers repeatable results every batch. We have witnessed demand surges driven not by trends, but by field-level outcomes, especially when growers deal with tough, hard-to-control weeds in non-crop and pre-planting scenarios.

    What Makes Our Paraquat Dichloride TK Distinct

    We have gained ground in the global agriculture market not only by maintaining product strength but also by prioritizing the details that matter to downstream users. The “TK” designation refers to the technical concentrate: it offers high percentage of active ingredient, usually between 42% and 45% w/w Paraquat ion content. The physical form is a clear blue aqueous solution, which simplifies storage, handling, and blending in bulk. Years of process optimization have minimized the risk of impurities, such as residual by-products common in less refined synthesis. Each drum that leaves our warehouse embodies investments in all the details that can make or break grower results—everything from purity to physical stability during long shipments.

    Many alternatives exist in the non-selective herbicide space, but Paraquat Dichloride TK continues to align with real operational needs. Unlike glyphosate and other products that often exhibit slow action or require more precise leaf absorption windows, Paraquat delivers visible results fast, often within hours, by disrupting photosynthesis at the cellular level. In territories with recurring resistance problems, farmers tell us Paraquat is one of the few options that controls weeds no matter how adaptive they become. Its rapid desiccation supports critical farming cycles, from minimum-till field preparation to quick burndown before planting or harvesting. This helps our customers rely on timing rather than hope, even when rainfall throws off schedules.

    Specifications and Manufacturing Commitment

    From our perspective, there is more to producing Paraquat Dichloride TK than simply reaching technical targets on a specification sheet. The chemical process starts with methylation and oxidation steps carried out in reactors designed to suppress the formation of unwanted tars and side-products. Our batch records go beyond simple compliance—they form the backbone of traceability. Before any shipment leaves our gates, our own laboratory screens each lot for real Paraquat ion content, water balance, and recognized impurities, including diquat and oxidation by-products. Many years ago, industry demand settled on a blue dye to improve safety against accidental misuse, and we have maintained dosing accuracy on colorants down to milligram levels to keep workers and end-users safer.

    With older grades of Paraquat, end users sometimes ran into issues with suspended solids, which led to blockages in spraying equipment. Through careful filtration and solvent handling, the clarity and stability of our TK solution match the expectations of major agrochemical formulating partners. Some competitors focus entirely on throughput, pushing yields at the cost of manageable residues, but we have stuck to tuned purification steps for every production run. This level of attention prevents issues down the distribution chain—a blocked nozzle during pre-plant burndown can mean expensive downtime or lost crop opportunity. The feedback loop between our application support and manufacturing departments helps us correct even subtle problems before they reach the field.

    Meeting Evolving User Needs and Regulatory Challenges

    In the last decade, Paraquat Dichloride has become emblematic of both the value and the scrutiny the crop protection industry faces. Policy changes, stewardship demands, and shifts in best practices have shaped how we approach every step, from sourcing to post-market monitoring. Extensive operator training and stewardship programs have impacted how we optimize safety in manufacturing and improve end-use handling. Our production facilities maintain closed-system transfer and containment to reduce exposure and environmental risk, and these same safety principles extend into the user guides and support we offer. Keeping pace with new regulatory limits on impurities and revisiting long-held standard operating procedures have been essential to our continued relevance and trust.

    Some international customers reach out for details about heavy metal content, solvent carrier limitations, or odd lot-to-lot differences in color or smell. We respond to these needs by providing tests for commonly flagged impurities, realizing the industry no longer accepts “good enough”. Each specification sheet aims to demystify not just regulatory minimums, but the practical reasons why such controls protect user safety and formulation consistency. Changes in regulatory maximum residue levels in food crops, or new operator safety thresholds, mean we audit and document every change, knowing international customers and partners expect not just paperwork but supporting batch data that stands up under scrutiny.

    Use Scenarios: Practical Advantages in the Field and Factory

    Looking at how Paraquat Dichloride TK fits into customer operations, we constantly return to the same three pillars: reliability, speed, and compatibility. Most of our partners operate plants producing finished liquid herbicides at significant scale, formulating diluted formulations such as 20% or 24% SL grades for use on major crops. The concentrated TK ensures shipping efficiency and flexibility, aiding quick response to market changes or supply chain disruptions. At the farm level, Paraquat’s contact action gets valued for cleaning up severe weed infestations or prepping no-till seedbeds where time matters most.

    Many crop advisers tell us that other non-selective herbicides compete on cost, but not timing. After a rain event or just before direct drilling, delays can cascade through planting. Paraquat’s fast knockdown action means new rotations start on an even footing, reducing competition from volunteer weeds or cover crops left over from a previous cycle. In perennial plantations or orchards, Paraquat TK serves as the backbone of strip weed control programs, holding the margin between tree rows clean so that mechanical and chemical inputs can work together without sacrificing main crop health.

    We often support open-house demos or training where users compare side-by-side results of Paraquat-based solutions versus substitutes, like glufosinate ammonium or diquat dibromide. Paraquat stands apart in rapid visible burndown, especially in managing grasses and broadleaf weeds with established cuticles. Farmer feedback has consistently backed up these field trials: short intervals between spraying and follow-on activities mean fewer labor bottlenecks, improved planner confidence, and less risk of crop injury from carryover. With Paraquat TK, the biggest difference often comes down to peace of mind—jobs get finished on schedule and unexpected escapes remain rare.

    Differences from Other Herbicides and Formulations

    We know the market contains a wide array of herbicidal choices, each with supporters and trade-offs. Glyphosate and glufosinate, for example, get credit for broad-spectrum action, but both need longer uptake periods and optimal absorption conditions, which may not align with field realities. Resistance cases against glyphosate have grown, especially in weedy grasses and Amaranth species, while Paraquat maintains its usefulness due to its unique mode of action that disrupts cell membranes within minutes of application. Since Paraquat’s effect is rapid and visible, scout teams and managers confirm performance soon after treatment—critical in tight planting windows.

    We also field questions about safety and stewardship: glyphosate’s lower mammalian toxicity profile has shaped perceptions, but Paraquat’s safety depends on rigorous user protocols, secure packaging, and reliable dyes that help prevent accidental exposure. Our manufacturing process addresses these realities: we manufacture TK exclusively for further formulation, understanding that correct dilution, adjuvant addition, and labeling form the final line of safety along with user training. The choice between Paraquat TK and other technical concentrates often centers on site-specific needs and the confidence that comes from traceable supply chains and batch consistency.

    Paraquat TK’s technical grade also stands apart from formulated finished products, such as soluble concentrates. Downstream buyers—formulators and bulk blenders—get to control surfactant selection, dilution rates, and stability additives. This gives them flexibility to tailor the final product for different climatic or regulatory requirements. Some finished products blend Paraquat with diquat or inert carriers to expand the weed spectrum or improve leaf spread, making technical grade TK a foundation for customized herbicidal programs. We view this partnership with formulators as a long-term collaboration, supporting unique market needs from South America to Southeast Asia with technical service, supply assurance, and adjustment recommendations where required.

    Sustainability, Responsibility, and the Future of Paraquat

    The story of Paraquat Dichloride TK includes both legacy and learning. Long before “sustainability” became common language, we saw how responsible stewardship shaped how Paraquat reached farmers. As manufacturers, we design our own processes to limit environmental impact: solvent recovery, closed-loop water use, and waste minimization measures run through every level of production. We track emissions and workplace exposure as part of staying accountable not just to regulators, but to our own workforce and downstream partners. Making changes to our own supply chain—switching to lower-impact precursors, increasing energy recovery, or investing in containment upgrades—costs time and capital, but these steps mean the product continues meeting real-world needs, even as expectations rise.

    We have seen new technologies and biologicals grow in the last decade, but in settings where weeds threaten food security or cash crops, Paraquat retains its place. Farmers and agronomists share stories with us—how a single missed burndown can set entire rotations back, leading to extra cost, labor frustration, and even yield losses. Through workshops and training, we share not only recommendations for use, but direct stories and case studies that reflect our experience. Paraquat’s risks are real; so are its benefits in crop protection when used with care and know-how. Our manufacturing teams participate in these conversations, not only to maintain compliance, but to listen, learn, and improve batch by batch.

    Adapting to the Needs of a Changing World

    Global markets continue to prove challenging and unpredictable. Supply chain disruptions, regulatory shifts, and evolving pest pressures have shaped what our customers expect—both from the chemistry itself and the companies who produce it. Our investment in process transparency and product stewardship invites partners to audit, test, and question. While some agrochemical inputs may disappear with changing approvals and public sentiment, Paraquat TK continues to be valued for its unique strengths, so long as clear communication and responsible use guide its path to the farm.

    In many places, we work with partners on stewardship tailored to local laws and custom, whether through proper PPE guidance, emergency support plans, or through clear, data-backed explanations on residue, drift risk, or handling. Being a manufacturer means keeping our end of the bargain—from the engineering of reactors to detailed support after drums reach their destination. The final product never leaves our hands without a story—of vigilance, care, and commitment to users who trust us to get it right every single time.

    Why Commitment from the Manufacturer Matters

    As the expectations for crop protection products grow more complex, it has become obvious that technical quality, traceability, and honest communication drive long-term relationships. From our vantage point as the manufacturer, Paraquat Dichloride TK is more than just a spreadsheet of lab values. Each ton represents not only our investment in chemistry, but also in the trust of plant operators, field managers, and independent agronomists who rely on honest, prompt support. This relationship spans farm to warehouse to international port—each step shaping next season’s confidence and each feedback call shaping tomorrow’s process improvement.

    Manufacturing Paraquat Dichloride TK compels a responsibility to both heritage and progress. As we move forward, we stand committed to holding our place in the global conversation—providing a Paraquat TK that meets not only the standards of decades past, but the demands of today’s agriculture, and most importantly, the future that growers, regulators, and manufacturers will shape together.