Anhui Liwei Chemical Co., Limited
Products

Picric Acid (2,4,6-Trinitrophenol)


    • Product Name Picric Acid (2,4,6-Trinitrophenol)
    • Alias TNP
    • Einecs 201-865-9
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    147658

    Chemicalname Picric Acid
    Iupacname 2,4,6-Trinitrophenol
    Molecularformula C6H3N3O7
    Molarmass 229.10 g/mol
    Casnumber 88-89-1
    Appearance Yellow crystalline solid
    Meltingpoint 122.5 °C
    Boilingpoint 300 °C (decomposes)
    Solubilityinwater 1.4 g/100 mL (20 °C)
    Density 1.763 g/cm³
    Odor Odorless or faint antiseptic odor
    Pka 0.38
    Flashpoint 150 °C (closed cup)
    Explosivesensitivity High
    Unnumber UN1344

    As an accredited Picric Acid (2,4,6-Trinitrophenol) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500g of Picric Acid (2,4,6-Trinitrophenol) is supplied in a brown glass bottle with hazard labels, securely sealed for safety.
    Shipping Picric Acid (2,4,6-Trinitrophenol) is shipped as a hazardous material, typically wetted with 30% water to reduce explosion risk. It must be packaged in approved containers, clearly labeled, and comply with international regulations (UN0154, Class 1.1D). Handling requires strict safety precautions and transport documentation per DOT, IATA, or IMDG guidelines.
    Storage Picric Acid (2,4,6-Trinitrophenol) should be stored in tightly sealed containers, away from heat, sparks, and flames, in a cool, dry, well-ventilated area. Store separately from combustible materials and reducing agents, and avoid metal contact. Containers should be kept moist with water to prevent drying, which increases explosion risk. Access should be restricted to trained personnel only.
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    Competitive Picric Acid (2,4,6-Trinitrophenol) prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Understanding Picric Acid (2,4,6-Trinitrophenol): A Manufacturer’s Perspective

    The Real Substance Behind a Name

    In our production facilities, we work hands-on every day with picric acid, known chemically as 2,4,6-trinitrophenol. Many outside the chemical industry might know it only as a relic of old textbooks, or recall its historic uses from the past century, especially during times of war. While it carries the reputation of being sensitive and highly energetic, what meets our eyes in the lab tells a broader, more practical story.

    From Raw Materials to Finished Product

    The manufacturing process for picric acid involves several controlled steps. We start with phenol, pass it through concentrated nitric acid under exacting temperatures, watch as deep yellow crystals form, then purify and dry with an eye for consistency. This process requires vigilant quality checks, not just for product uniformity, but also for the safety of the people running the reactors, given the compound’s reactivity.

    We control acidity and moisture content down to a fraction of a percent. Even the color of the final crystals—a rich canary yellow—tells us much about purity. No two batches are identical, but experienced eyes know the signs of a worthwhile lot. Impurities or over-exposure to heat ruin more than just the appearance; they affect performance in every subsequent application.

    Specifications We Stand By

    Every manufacturer likes to say their product is top quality. What we deliver each time is a batch of picric acid with a purity level of over 99%. Grain size means more than aesthetics; larger crystals can become brittle and hazardous, especially if handled roughly during transport. We aim for a fine, dry, uniform powder, free from clumps or signs of decomposition. Moisture stays well under the threshold recognized by global chemical standards.

    Our product never leaves the production line unless it matches these marks. Packaging happens under nitrogen to keep it away from the air’s humidity, and containers receive anti-static lining as a rule. It’s not about luxury—these details matter if you are the person opening a drum in a remote lab or a defense facility. A misstep can cost more than money.

    Modern Uses Beyond the History Books

    Picric acid once filled shells and bombs—those days are mostly over. In recent years, priorities shifted. Today, the chemical plays several roles across modern sectors, but each sector brings its own requirements. For chemists, our product provides one of the sharpest, most sensitive reagents to test for metals like copper, iron, or even creatinine in medical labs. Colorimetric analysis with picric acid builds on over a century of chemical lore, but it is the reliability of each batch, not its past, that decides its place in a protocol today.

    Metallurgists rely on it as an etching agent. Without a clean, stable acid, analyzing steel or alloys under magnification turns into guesswork. At our site, we see first-hand how batch stability translates directly into clarity of micrographs and the ability to identify boundaries, phases, or inclusions in a billet of steel. That means better parts rolling off an industrial line, with fewer surprises years down the road.

    On the research front, our main clients include academic labs engaged in organic synthesis or explosives detection work. While regulations grow tighter every year, scientific discovery still leans on the unique properties of trinitrophenol. The famous volatility and strong yellow color turn it into a valuable standard for calibrating sensors used to spot illicit substances in baggage, soil, or water.

    And though the word “explosive” still raises eyebrows, modern safety protocols for industrial handling have come a long way. Every kilo of material that leaves our plant passes through a chain of documentation and checks—ensuring it lands only with organizations licensed and equipped to use it safely, whether for R&D or specialized mining procedures.

    The Element of Safety

    We often tell people that working with picric acid does not reward shortcuts. In our plant, every operator is required to undergo regular training, and every lot is kept on record in a strict inventory system. Picric acid’s sensitivity to shock forms the basis of its reputation; sloppy handling or poor storage can turn a drum of powder into a hazard.

    Water content presents a double-edged sword. Too little, and fracturing or dust becomes a problem, raising the danger of static discharge. Too much, and purity slips, inviting questions about laboratory results. We produce material at a precise balance point. Experienced technicians fill every container to match both regulatory definitions and real-world safety, informed by incidents learned from decades of industry stories.

    One of the nagging problems we see across the sector is improper storage. Picric acid should never dry out entirely, nor come in contact with metal surfaces that cause formation of metal picrates—far more sensitive than the acid itself. That is why our packaging avoids even a trace of bare metal. We print clear instructions on every drum and refuse orders from anyone who shrugs off these precautions.

    Not every manufacturer takes these steps. As a result, news stories still emerge every few years about forgotten bottles turning up under dusty shelves, some dating back to the 1950s or 60s. The risks can be managed, but they require respect, training, and a culture that never takes safety for granted.

    How Our Product Differs From Other Choices

    On the market, you will find both pure and stabilized forms of picric acid. The stabilized variant contains controlled moisture, offering a certain degree of protection against accidental ignition. Our product falls into this category, with water levels maintained tightly in line with regulatory recommendations—enough to reduce risk without undermining chemical performance.

    We have experimented with alternative packaging materials, and the verdict is clear: inert, anti-static plastics outperform every other option. More importantly, every drum sealed at our plant leaves a visible batch stamp and a tamper-evident feature to prevent swapping out labels, which proves crucial for chain of custody in research or legal work. Feedback from users has shown us that minor savings in logistics often turn costly if purity, moisture, or even chain of custody falters. We do not compete on price alone; our real measure lies in trusted, repeat customers who rely on consistency above all.

    Compared to other energetic compounds, like TNT (trinitrotoluene), picric acid stands out for several reasons. Its sensitivity outpaces TNT, so small errors in production or handling can grow into real hazards. On the other hand, the reactive phenolic group in picric acid opens up unique chemistry for testing, dye production, or organic synthesis, making it irreplaceable in certain applications.

    Whereas TNT often serves a single purpose as a bulk energetic material, picric acid keeps a foot in multiple worlds: diagnostics, material science, research, and yes, occasionally, controlled demolition. That range stems directly from the chemistry we observe in the plant every day. Structure is destiny, and each molecule of trinitrophenol behaves differently than its more famous cousin. Chemists value this distinction, and our staff know the importance of never losing sight of these details.

    The Regulatory Maze and Its Impact Down the Line

    Manufacturing picric acid now involves more paperwork than it did forty years ago. International rules for shipping, storage, and end-use continue to grow in complexity. We stay engaged with worldwide chemical safety organizations, adapting our internal controls the moment new recommendations emerge.

    Transportation marks another critical difference from resellers or traders who only handle sealed drums. Our job starts with in-house certification, extends through audited logistics, and ends with real-time tracking of each shipment. Once a batch moves, we hold certificates and transport data for years, providing transparent traceability, not just to regulatory bodies but also to those labs and businesses buying from us repeatedly.

    One challenge that comes up often involves international customs and bans. Regulatory inconsistency between countries slows supply and can stall critical research or industrial projects. Within our team, we dedicate several staff members to liaising with customs brokers and safety inspectors, often serving as the only bridge between our site and distant labs facing a shortage after a major customs snag.

    We advocate for clearer international standards around chemicals like picric acid—but until they arrive, every customer relying on our material benefits from the paperwork and advocacy that unfolds behind the scenes, day after day.

    Moving the Industry Towards Smarter Practices

    From inside the plant, we see sweeping industry changes up close. More customers demand not only a product, but careful instructions for safe handling and disposal. We integrate feedback from customers, not just about performance in the lab or field, but also about incident management and long-term storage issues. This practical knowledge flows backward; the lessons learned shape not just safer drums, but internal operating procedures and training courses for our staff.

    We recognize that sustainability concerns push forward every year. Many ask what happens to picric acid after its useful life—especially when protocols require destruction rather than recycling. Our team began researching green chemistry approaches, seeking routes to detoxify waste streams on-site, avoiding transport of unstable residues as hazardous materials. This fresh momentum drew on decades of accumulated spills, scares, and smart fixes pioneered by chemical workers on the ground.

    Recently, we invested in modern sensors within our plant. These include real-time monitors tracking ambient temperature, static risk, and vapor levels near the packaging area. Outdated analog gauges gave way to integrated control systems that stop the line if hazards exceed our strict limits. The difference becomes obvious: fewer leaks, tighter moisture control, and workers heading home safer at the end of the shift.

    It’s not only internal staff who benefit. We extend these safety innovations by running online seminars for client labs unfamiliar with energetic compounds. There’s no pretense—mistakes do happen in the field, and honest stories told by seasoned plant workers send a stronger signal than bland warning labels or paperwork. These learning experiences, collected over years in the chemical trenches, continue shaping the future of working with substances like picric acid at every level.

    Supporting Progress Through Partnership

    The relationship between producer and user matters in this niche. Many customers come from fields far removed from basic chemicals: forensic labs, research hospitals, niche metallurgy firms, explosives specialists, and state-run scientific bureaus. Sometimes clients call us not just for fresh orders, but for advice troubleshooting tricky analytical procedures, or even advice on legacy stock management.

    Over time, what we learn from these conversations loops back into how we make each batch. For example, one client in alloy testing reported recurring issues with trace contamination from plastic packaging under high heat; we pivoted to a new polymer blend in our containers. Users handling high-volume diagnostic assays flagged caking issues in long-term storage, so we tweaked moisture control and included secondary desiccant pouches. These solutions don’t come from old manuals; they grow from real problems faced in the real world.

    Not every chemical plant takes the long view, but it’s easy to spot the difference when the work gets risky. Our job means facing up to unexpected day-to-day realities—accidents, shifts in demand, and regulatory about-faces. It’s not theory; it’s the pressure you feel opening a new drum, knowing every variable can influence both experimental success and the end user’s safety.

    Why Practical Understanding Beats Abstraction

    Sifting through advertising from resellers or reading neutral academic descriptions rarely prepares anyone for the reality of handling, storing, and applying picric acid at scale. Our experience grounds every decision we make—from the humidity in our storage rooms to the timing of each order leaving for shipping.

    We learn from incidents, not just checklists. Stories surface within the plant—like the summer a heatwave sent warehouse temperatures soaring, baking a row of unopened drums and requiring the tough decision to take a loss and destroy hundreds of kilos. Competitors might have sold that batch on discount; we saw too many small warning signs: slightly sticky crystals, a shift in odor, the suspicion that decomposition had started. That knowledge, distilled from boots-on-the-ground work and collected over decades, forms the backbone of our standards today.

    Each time we train a new hire, walk through a facility audit, or consult with downstream labs, we draw on this reservoir of practical insight. Regulations set the baseline, but actual performance grows from handling materials day in and day out, tracking failures, noticing odd trends, and applying these lessons before a problem reaches a customer. It may sound old-fashioned, but it’s this culture of pragmatism that keeps scientists, inspectors, and, ultimately, the public safe.

    Into the Future With Eyes Wide Open

    Picric acid presents a paradox—valued for properties that require careful management, straddling the line between essential chemical and hazardous legacy material. As its manufacturers, we face this paradox directly. We avoid both the nostalgia of past industrial glory and the pitfall of treating everything like a standardized commodity.

    By focusing on the practical aspects of production, packaging, safety, and real-world feedback, we help users choose, handle, and ultimately dispose of picric acid with eyes open. As chemistry keeps evolving, so will the ways we approach both daily operations and broader industry challenges. Our only guarantee: every drum that leaves our site benefits from the long memory and ongoing learning of everyone who worked to build and maintain this field.

    Ultimately, picric acid remains a fixture in analytical science, metallurgy, and specialized synthesis precisely because of this bridge between rigorous process, accumulated wisdom, and respect for the power—both creative and destructive—locked inside a single yellow crystal. From one batch to the next, it’s that constant awareness, earned by doing, that sets real manufacturers apart.