Products

2,4,6-Trinitrophenol

    • Product Name: 2,4,6-Trinitrophenol
    • Alias: Picric acid
    • Einecs: 201-865-9
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    511137

    Chemicalname 2,4,6-Trinitrophenol
    Commonname Picric acid
    Molecularformula C6H3N3O7
    Molarmass 229.10 g/mol
    Appearance Yellow crystalline solid
    Meltingpoint 122.5 °C
    Boilingpoint 300 °C (decomposes)
    Density 1.763 g/cm3
    Solubilityinwater 1.4 g/100 mL (20 °C)
    Casnumber 88-89-1
    Odor Odorless
    Pka 0.38
    Hazardclass Explosive, Toxic
    Flashpoint 150 °C
    Unnumber UN 0154

    As an accredited 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 A 500g amber glass bottle with a red hazard label, tightly sealed, marked "2,4,6-Trinitrophenol, analytical grade, handle with care."
    Shipping 2,4,6-Trinitrophenol (picric acid) must be shipped as a hazardous material under strict regulations. It is classified as UN0154, explosives, Division 1.1D. Transport requires tightly sealed containers, protective packaging to prevent shock, heat, and friction, and appropriate hazard labeling. Only licensed carriers in compliance with local and international laws may handle shipment.
    Storage **2,4,6-Trinitrophenol (picric acid)** should be stored in tightly sealed containers, away from heat, sources of ignition, and incompatible substances such as reducing agents and metals. The storage area must be cool, dry, well-ventilated, and protected from physical shock. Containers should be checked for dryness since dry picric acid is highly explosive. Store with compatible explosives, following all legal and safety regulations.
    Application of 2,4,6-Trinitrophenol

    Applications of 2,4,6-Trinitrophenol in Industrial Manufacturing

    As a dedicated producer specializing in 2,4,6-Trinitrophenol, we supply consistent quality raw material to a select range of established industrial sectors. On this page we present application details, downstream manufacturing integration, industry regulations, and formulation guidance to support technical buyers and production managers seeking fully substantiated use-cases within their certified processes.

    1. Explosives Manufacturing: Initiators and Boosters

    2,4,6-Trinitrophenol plays a critical role as a primary explosive and sensitizer in detonator and booster charge production. It supports controlled initiation in industrial and mining applications, where precise output, stability, and regulatory traceability are mandated at each process stage from mixing to pressing. Only licensed downstream facilities integrate this material, working under stringent national and supranational safety standards.

    Industry compliance standards

    • UN Recommendations on the Transport of Dangerous Goods (UN Model Regulations, Class 1)
    • European Union Explosives for Civil Uses Directive 2014/28/EU
    • U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) Regulations, 27 CFR Part 555
    • Relevant ISO 9001:2015 certified production and quality control procedures

    Typical usage ratio

    • 4%–25% by mass in primary explosive charges, adjusted based on intended output force, packing density, and compatibility with styphnate or lead azide blends

    Downstream process integration

    • Raw input at pre-mixing phase, combined with metallic salts, binders, and occasionally phlegmatizing agents; follows wet granulation and controlled drying before pellet or cap-forming

    Final product types

    • Electric and non-electric detonators
    • Blasting caps for mining, quarrying, and seismic exploration
    • Primer charges for military small arms ammunition

    2. Pyrotechnics Production: Signal and Delay Compositions

    Specialty pyrotechnic formulations incorporate 2,4,6-Trinitrophenol to achieve strong color emission and predictable ignition delays, essential for safety flares, colored smoke signals, and rescue markers. End-use formulas require compliance with civilian and maritime safety standards, as the material serves as a reliable energy source for signal visibility in adverse conditions.

    Industry compliance standards

    • International Maritime Organization (IMO) SOLAS Convention for Signal Flares
    • EN 16263-3 Pyrotechnic Articles – Articles for Theater, Film, and Television Use
    • U.S. Coast Guard 46 CFR Subpart 160.021 – Pyrotechnic Distress Signals
    • ISO 9001:2015–linked batch documentation and traceability practices

    Typical usage ratio

    • 0.5%–8% by batch weight in pyrotechnic compositions, depending on blend with oxidizers and color-producing agents such as strontium or barium salts

    Downstream process integration

    • Added during dry mixing with metallic fuels, oxidizers, and color enhancers, followed by hydraulic pressing and incorporation into casing assemblies

    Final product types

    • Dye-based signal flares (land, marine, or aviation)
    • Colored smoke cartridges for crowd management
    • Delay fuse elements for safety markers and training simulators

    3. Analytical Chemistry Reagents: Spectrophotometric Analysis

    Analytical laboratories use 2,4,6-Trinitrophenol as a chromogenic reagent for quantitative detection of trace ammonium ions and certain amines in environmental and food analysis. This application relies on strict purity and traceability parameters, as downstream processes demand low-variance color development for instrument calibration and repeatability across analytical runs.

    Industry compliance standards

    • ISO 17025:2017 Accreditation for Testing and Calibration Laboratories
    • U.S. EPA Methods 350.1, 351.2 for Nitrogen Analysis in Water and Wastewater
    • European Pharmacopoeia 2.2.25 – Absorption Spectrophotometry Criteria
    • GLP (Good Laboratory Practice) requirements for analytical reagent traceability

    Typical usage ratio

    • 50–250 μg per 10 mL of reaction mixture, precise dosing adjusted based on matrix absorbance and calibration curve requirements

    Downstream process integration

    • Dissolved as aqueous or buffered stock solutions, introduced as a colorimetric reagent in standard and automated spectrophotometric assays

    Final product types

    • Laboratory test kits for ammonium measurement
    • Bulk colorimetric reagents supplied to certified analytical labs
    • Automated analyzer cartridges for water and soil testing

    4. Pigment and Dye Manufacturing: Acid Yellow Dyes

    Producers of specialty azo and nitro-based dyes and pigments incorporate 2,4,6-Trinitrophenol to achieve stable, high-intensity acid-yellow shades for textile, ink, and leather applications. The material serves as a precursor and modifier in synthetic dye manufacture, where control of substitution patterns and particle size is critical to product consistency and batch reproducibility.

    Industry compliance standards

    • REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) – EU Regulation (EC) No 1907/2006 for pigments and dyes
    • OEKO-TEX Standard 100 (dye and auxiliary restrictions)
    • ISO 105-X12:2016 Color Fastness Test Methods | GOTS v6.0 for organic textiles
    • ISO 9001:2015 production quality systems for stain resistance and leak testing

    Typical usage ratio

    • 8%–30% by weight in acid dye syntheses, varied according to color strength requirements, substrate compatibility, and pigment particle stability objectives

    Downstream process integration

    • Entered during primary synthesis with sulfonating or diazotization agents, followed by filtration, washing, and finishing as lakes or dry powders

    Final product types

    • Acid Yellow 36 and related nitro dye formulations
    • Color concentrates for textile printing and fiber dyeing
    • Inkjet printer pigments for specialty paper and packaging

    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing 2,4,6-Trinitrophenol: A Perspective from the Manufacturer’s Workshop

    Our Experience Shaping 2,4,6-Trinitrophenol for Industry Needs

    Stepping across the production floor early in the morning, there’s a sense of respect that comes from working with time-proven compounds like 2,4,6-Trinitrophenol. Better known as picric acid, this compound has played a steady hand in shaping industries ranging from defense and metallurgy to laboratory research and analytical chemistry. At our site, every batch produced reflects lessons learned from decades of hands-on work, ongoing refinement, and a close watch on both quality and safety.

    Characteristics We’ve Observed in the Field

    2,4,6-Trinitrophenol stands out among nitroaromatic compounds for its bright yellow crystalline form and robust properties. We produce several models: fine powder for laboratory analysis, granular for safer handling, and pressed forms suitable for specialized requirements. Each time we fill a vessel or charge a reactor, the characteristic sharpness in the air and the vibrant yellow color signals that the chemistry is reliable and repeatable.

    Products like picric acid demand respect in handling, both during manufacturing and throughout their journey down the supply chain. The energetic profile is particularly notable—2,4,6-Trinitrophenol is more sensitive than many other nitroaromatics, which means manufacturers must follow precise procedures at each step. Our longstanding methods for temperature control, remote agitation, and in-line pH monitoring prevent runaway reactions, ensuring that every shipment meets target purity and stability ranges.

    Over time, repeated analysis (HPLC, titration, melting point) has revealed a degree of batch-to-batch consistency that gives engineers confidence. Typical purities we manufacture range between 99.4% and 99.9%. Trace metal content, moisture percentage, and particle distribution are monitored batch after batch. Customization emerges as a result of feedback: laboratories sometimes need ultra-pure material with fine particle size, while industrial clients value predictable grain and dust reduction.

    Why Industries Still Rely on 2,4,6-Trinitrophenol

    Few compounds offer the same versatility. In defense technology, 2,4,6-Trinitrophenol’s role as a high explosive was once the standard—decades of experience drilling, melting, and pressing this material guided the safety regimes that exist today. Though newer materials such as RDX have edged out picric acid in many technologies, it remains a key reference material in test labs, particularly for calibration standards and energetic research.

    Beyond defense, the coloration strength and reactivity make picric acid indispensable for laboratories and metal processing shops. Chemists rely on it as a classic reagent for detecting alkaloids and for histological staining. Metallurgists still turn to picric acid etching, particularly when revealing ferrite and carbide structures in steel. These applications take advantage of sharp line definition, sensitivity, and contrast that competing etchants rarely achieve.

    Each use case brings its own needs. Laboratories value finely milled, high-purity samples that dissolve quickly and leave minimal residues. Metalworking customers consistently request granular, dust-suppressed models; fine powders can ignite more easily, so larger granule sizes support safer storage and transfer. In both fields, precise labeling and documentation support compliance with shipping requirements and local regulations. Our experience shows that supporting customers goes beyond making chemistry—it means sharing best practices, updating protocols, and remaining available for questions that only surface after handling the compound day after day.

    Striking Differences Compared to Other Nitroaromatics

    Manufacturing 2,4,6-Trinitrophenol teaches a manufacturer a lot about what makes one nitro derivative distinct from the next. Those unfamiliar with hands-on work often compare it to TNT or dinitrophenol, pointing out formula similarities. Yet, small changes in molecular structure drastically shape hazard, behavior, and utility on the floor.

    In practical terms, picric acid has a melting point markedly lower than TNT, which influences storage and application. Its moisture sensitivity especially calls for vigilance: when dry, picric acid becomes much more sensitive to impact and friction. In contrast, TNT’s stability allows for broader uses with less day-to-day risk. As a manufacturer, we store picric acid in carefully controlled environmental rooms, taking cues from generations before. Steps like constant humidity checks and physical isolation from metal surfaces prevent the formation of highly sensitive picrate salts, a danger absent in some related compounds.

    From a chemist’s bench to an industrial press, the way 2,4,6-Trinitrophenol interacts with other materials commands a particular brand of respect. Even minor contamination with certain metals creates a risk of forming salts far more sensitive than the original compound. Our facility design limits exposure, with equipment fabricated from approved polymers or glass-lined steel. Operators take special training on keeping water content within narrow limits, and all waste streams are neutralized and segregated for safe disposal.

    With dinitro compounds, users often remark on the lower energetic yield and different risk profile. These options attract customers needing less reactivity or volatility. In contrast, 2,4,6-Trinitrophenol maintains an edge in applications demanding both strong coloration and explosive performance. Without careful manufacturing and storage, however, the line between utility and hazard grows thin; this is a lesson written into our plant protocols and taught in every training session.

    Quality as Seen from Decades at the Reactor

    There’s a difference between reading about quality control and living with the consequences of a batch that drifts from spec. We’ve traced improvements by watching changeover in the plant and recording how environmental factors shift product quality. Pure, consistent 2,4,6-Trinitrophenol doesn’t just come from a checklist; it comes from trained eyes and hands knowing what to expect and hearing the subtle variations in agitation or temperature profile during synthesis.

    GC-MS, HPLC, and spectral methods back up each lot released to customers. Purity, color uniformity, moisture control, and particle size remain benchmarks. The best results haven’t come from shortcuts, but from respecting the process and making incremental improvements. For end-users, this reliability translates to consistent performance in explosives characterization, reliable detection limits in laboratory testing, or repeatable outcomes in etching recipes for metallurgical analysis.

    Health, Safety, Compliance, and Responsible Production

    The practical reality of manufacturing this compound means safety never takes a back seat. We’ve learned that health and safety rules exist for good reason, both to protect our team and to guarantee that customers down the line never second-guess the material. Picric acid dust can irritate the respiratory tract and, if left unchecked, ignition risk rises during drying. We prevent issues by running efficient dust extraction, high-flow ventilation, and positive-pressure operator stations.

    Long work at the interface of chemistry and worker protection reveals hidden details: anti-static procedures, redundant grounding, and double containment on all transfer equipment. Each drum and jar is tracked, from fresh acidification through stabilization, packaging, and onward to shipment. Rigorous in-house documentation allows for full traceability, supporting both process audits and customer peace of mind.

    Large-scale manufacturing brings regulatory scrutiny. We collaborate closely with local authorities, providing details needed for permitting and reporting. Sometimes the cooperation gets tedious, but over time, it increases efficiency and builds a library of safe handling practices that benefit both our staff and our clients. Our commitment extends to wastewater minimization, solvent recovery, and responsible destruction of subpar fractions.

    Adapting with Technology and Customer Feedback

    No product remains static in real-world use. Each year ushers in new guidelines on restriction, permissible exposures, and packaging standards. Product evolution often stems from feedback. Researchers comment on solubility rates or sample coloration issues; industrial buyers offer opinions on batch weights or container options. These insights guide changes in production scale, purification steps, and packaging specifications.

    Over time, we streamlined our finishing area, selecting containers that minimize extraneous dust and reduce risk in shipping. We listened to client requests for smaller packaging to aid portion control in labs and for tamper-evident seals for export. Investments in automated packaging, improved quality checks, and stricter environmental monitoring have grown directly from these conversations.

    As more industries turn toward automated processes, the compatibility of 2,4,6-Trinitrophenol with dosing and dispensing systems also attracts attention. Particle sizing, dust minimization, and caking prevention have become vital elements in product design. Routine evaluations in the field identify areas for improvement—and sometimes lead to modifications in drying, milling, or stabilization procedures.

    Environmental Impact and Sustainable Manufacturing

    Producing 2,4,6-Trinitrophenol bears environmental costs, and we face them head-on. Waste acid streams, off-gas control, and solvent management remain focal points. The facility has invested in multi-stage scrubbers that quench nitrous oxides and lay groundwork for treating both gaseous and liquid effluent. Strict segregation during cleaning and filter disposal prevents cross-contamination and cuts down on accidental releases, which, in years past, posed bigger challenges.

    We’ve committed resources to refining neutralization steps, reusing excess heat in the plant, and recycling packing materials wherever practical. By reworking finings or off-spec lots back through early stages, we reduce overall waste. Our experience teaches that careful monitoring, not luck, rules the line between safe production and incidents—and makes environmental stewardship a lived process, not just words on paper.

    Seeking alternatives to traditional solvents and optimizing batch sizes minimize environmental burdens. We collaborate with regulatory bodies and academic partners to keep hazard reduction and sustainability at the forefront of our enterprise. The demands of the modern supply chain and increasing environmental regulation mean each decision on the manufacturing floor—be it material sourcing, equipment maintenance, or operator training—feeds back into both product quality and our broader responsibilities.

    Building on a Foundation of Knowledge and Experience

    Every operator in our facility traces a shared story of learning alongside chemistry. Mistakes as well as successes shape the approach to manufacturing 2,4,6-Trinitrophenol. Early lessons came from observing the difference between a batch that dried too quickly and one that required extra stabilization. Live feedback from loading docks and packing lines flows back into changes both big and small.

    We maintain close ties with end-users. Whether a material scientist investigating alloy phases, a defense contractor trying to optimize legacy munitions, or a researcher fine-tuning detection protocols, each application gives us a glimpse of new challenges, guiding us towards continual improvement. Decades in business confirmed that knowledge sharing goes both ways, often resulting in tips for safer handling, suggestions for custom packaging, or even new test methods.

    Education stands at the core of what it means to make truly reliable 2,4,6-Trinitrophenol. Internal training extends beyond the safety lesson or typical onboarding. Sharing accumulated wisdom—how to identify a good batch, how to recognize subtle signs of instability, how to read trends in tank temperature—these become the backbone of a responsive, adaptive manufacturer. The value woven from hands-on chemical experience distinguishes the product at each stage, from synthesis through delivery.

    Focused Innovation for New Markets

    Markets evolve, but the fundamental properties of 2,4,6-Trinitrophenol anchor its demand. Innovations in the plant follow the lead of customer needs, regulatory shifts, and advances in analytical chemistry. New research on alternative nitroaromatics and environmental safer substitutes runs in parallel with our own efforts, prompting adjustments in formulation, packaging, and distribution.

    None of these changes come at the expense of reliability. The challenge lies in delivering consistent material while meeting stricter environmental and safety regulations, tighter batch controls, and expanded documentation. Field feedback occasionally identifies opportunities for new product lines: convenient single-dose blister packs for laboratories, or low-dust, granular formats for bulk users. Each new offering is only rolled out following real-world performance assessments and client trials.

    At the workshop level, continuous equipment upkeep, staff training, and plant investment remain non-negotiable. Decades spent troubleshooting batch inconsistencies or innovating new drying cycles built a foundation that keeps production lines moving and ensures that each drum of 2,4,6-Trinitrophenol represents our best work at every stage.

    Conclusion: More Than Just a Product

    Every shipment of 2,4,6-Trinitrophenol carries the stamp of the people who made it—engineers, technicians, safety managers, and logistics teams working together and learning from one another. The difference between a high-quality batch and a generic alternative lies in countless small details, shaped by years of experience and continuous dialogue with those who use the product every day. Knowing what goes into each drum transforms it from just another chemical into a trusted tool for industries around the world, supported by a foundation of skill, commitment, and pride in a job well done.

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