Acid Brown O

    • Product Name: Acid Brown O
    • Alias: Acid Brown 7
    • Einecs: 215-420-7
    • 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

    528412

    Chemical Name Acid Brown O
    Synonyms Acid Brown 1, Acid Brown R, C.I. 21010
    Cas Number 10114-58-6
    Molecular Formula C18H14N3NaO3S
    Molecular Weight 375.38 g/mol
    Appearance Brown powder
    Solubility In Water Soluble
    Dye Class Acid dye
    Application Textile dyeing (mainly wool, silk, and nylon)
    Melting Point Decomposes

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

    Packing & Storage
    Packing The packaging for Acid Brown O contains 500 grams of dark brown powder, sealed in a labeled, moisture-resistant plastic bottle with safety instructions.
    Shipping Acid Brown O should be shipped in tightly sealed, clearly labeled containers, protected from light, moisture, and incompatible substances. Ensure compliance with local, national, and international transport regulations. Handle with care, using suitable protective gear to prevent leakage or spills, and include proper documentation and hazard labeling according to chemical safety standards.
    Storage Acid Brown O should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from incompatible substances, such as strong oxidizers and bases. The storage area should be clearly labeled and protected from moisture and direct sunlight. Personal protective equipment, including gloves and goggles, should be used when handling to prevent exposure.
    Application of Acid Brown O

    Purity 98%: Acid Brown O with a purity of 98% is used in textile dyeing processes, where it ensures vibrant and uniform color penetration on cellulose fibers. Molecular Weight 350 g/mol: Acid Brown O with a molecular weight of 350 g/mol is used in leather finishing, where it provides consistent shade and fastness properties. Stability Temperature 120°C: Acid Brown O stable up to 120°C is used in paper coloration, where it maintains color integrity during high-temperature processing. Particle Size D50 10 µm: Acid Brown O with a particle size D50 of 10 µm is used in ink formulation, where it enables smooth dispersion and prevents sedimentation. Water Solubility 30 g/L: Acid Brown O with water solubility of 30 g/L is applied in wool dyeing, where it promotes rapid and even dye uptake. Melting Point 200°C: Acid Brown O with a melting point of 200°C is used in synthetic fiber dyeing, where it offers excellent thermal stability and color retention. pH Stability 4-7: Acid Brown O stable in pH range 4-7 is used in silk dyeing, where it achieves high color reproducibility and wash fastness.

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    Tel: +8615365186327

    Email: admin@ascent-chem.com

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    Certification & Compliance
    More Introduction

    Acid Brown O: A Closer Look at Our Production and This Dyestuff’s Value

    Introduction

    Working in the chemical manufacturing sector over the decades has taught us that even a single product, such as Acid Brown O, can become indispensable in specific industries. At our facility, Acid Brown O has earned a spot on our main production lines because of its strong demand from textile, leather, and paper markets, where rich brown hues are both trendy and practical. Our team crafts this dye through a controlled synthesis process that brings about consistent tone, purity, and solubility. Acid Brown O goes by various trade names, but through careful refinement, we deliver a material that meets color standards and application consistency expected by expert dyers.

    The Chemistry Behind Acid Brown O

    Acid Brown O falls within the group of monoazo dyes. Its chemical structure comes from coupling an aromatic amine with a diazotized derivative. Many colleagues outside the dye industry ask why customers stick with Acid Brown O, since brown shades can come from blending other colors. The answer lies in the robust, stable brown shade our process produces—and the way it binds to cellulose, protein, and polyamide fibers. Unlike physically blending red, yellow, and black dyes, Acid Brown O lays down a consistent shade, batch after batch, because we control the synthesis temperature, pH, and raw material qualities. That control over the process helps us cut variation and nail down a reproducible shade, which is essential for large textile runs or custom leather finishing orders.

    Model and Specifications: What We Offer

    Clients who visit the plant often ask about product grades. In our facility, we manufacture Acid Brown O as a standardized granulated powder. Each batch undergoes filtration and drying. We guarantee minimal insoluble content, which helps dyers avoid unappealing spots or streaks on finished goods. For those needing customized concentrations, our R&D team adjusts particle size and solubility to fit specific application equipment, be it jiggers, soft-flow machines, pit dyeing, or spray booths. Many years of experience taught us that uniform application depends not just on raw dye, but on fine-tuning its physical characteristics for what the end user prefers.

    We also maintain strict content and pH ranges. Any product leaving our facility matches the color value and purity specified in our outgoing certificate of analysis. We aim for a purity above 95% by HPLC, confirmed through regular benchmark testing. Moisture content stays below 4% because we dry under vacuum to avoid caking. Lower moisture translates to a longer shelf life for storage and fewer problems during weighing and mixing.

    Some customers want further assurances for high-end applications. For them, we offer lots with controlled heavy metal content (below established local or EU guidelines), and we document azo compound breakdown products to address regulatory needs. Working closely with dyestuff auditors and consumer brand inspections, we provide traceability for every Acid Brown O lot we sell.

    Common Applications: More Than Just a Brown Dye

    Textile mills have long been the main users of Acid Brown O. On cellulose fibers like cotton or viscose, our dye offers good build-up and is compatible with direct acid dye baths. Wool processors like the way it gives a deep brown at moderate pH, without heavy migration or bleeding seen with some other browns. Our team learned over the years that Acid Brown O takes up evenly, especially on open-width machines, which cuts down on time spent fixing shade variations.

    Leather finishers rely on Acid Brown O for more reasons than color alone. The dye's molecular structure creates a fastness that holds up well to light exposure and rubbing, important for garment and upholstery leathers. Our manufacturing process ensures the final product leaves minimal residues. That translates into clearer washes and brighter final shades, particularly on vegetable-tanned leathers.

    In the paper industry, Acid Brown O imparts a lasting color for specialty packaging or board products. Unlike some other dyes that migrate or bleed on wet pulp, Acid Brown O binds with modified cellulose, producing sharp, non-fading tones. Formulators working with specialty paper appreciate that our dye leaves minimal insoluble byproducts, so there’s less filter clogging during large-volume production.

    Differences: Acid Brown O Versus Competitors and Other Browns

    We have spent years comparing our Acid Brown O lines to others in the marketplace. Some brown dyes are blends of red and yellow acid dyes. Others come from different chemical classes, like Acid Brown 14 or premetallized options. Each has its limitations. Blended browns may separate during dye baths, leading to patchy fabric, which requires re-dye work for unhappy customers. Acid Brown O’s single-molecule structure solves that problem.

    In pigment-rich environments, such as tanneries, our dye's solubility in water, even under varying ionic strengths, stands out. We've observed fewer issues with precipitation or “dyebath drop-out” compared to premetallized competitors. Several customers switched to our product due to smoother bath operation and fewer complaints about filter plugging.

    Some brown dyes suffer from weaker fastness or lower resistance to acidic or basic conditions on the end substrate. Our R&D tests Acid Brown O against common acids and alkalis used in wet processing. The color stands up well, holding its original tone even after repeat exposure, which is vital for clients whose products undergo further treatments or multiple washes.

    Environmental and Safety Considerations

    After decades of handling dyestuffs, we have seen increased vigilance around environmental and worker safety. Acid Brown O production uses aromatic precursors, so we track emissions and waste closely. Our on-site biological treatment plant removes most residual organic matter and colorants before releasing treated water. Internal audits, plus regular training for plant workers, help us run a tighter and safer operation each year.

    Downstream, we work with clients to manage spent baths and sludge, recommending best practices for in-plant wastewater neutralization. We also comply with sector guidelines on banned amine precursors, providing documentation for brand and regulatory compliance audits. The growing demand for eco-labels prompted us to run life-cycle analyses and pilot studies on new, lower-impact synthetic routes—though brown azo dyes like Acid Brown O already exhibit lower toxicity compared to some legacy colors.

    Challenges and Solutions in Production

    Producing Acid Brown O at scale brings specific hurdles. Fluctuations in cost and quality of aromatic amine feedstocks directly impact shade reproducibility and impurity content. From direct experience, sourcing high-quality intermediates requires long-term supplier relationships and rapid batch validation upon delivery. Logistical interruptions—raw material delays, strike actions, or port closures—can slow production. We solve this by maintaining in-house stocks and collaborating with local vendors for key inputs, ensuring continuity.

    Maintaining batch consistency means running frequent lab checks during each production step. Our inspectors use both colorimetric and TLC/HPLC analysis to monitor byproducts—a practice introduced after seeing occasional off-tones slip through older QA systems. Process engineers routinely tweak pH, filtration, and reaction step times based on real-time lab feedback.

    Some customers pose new requirements, such as stricter limits on trace contaminants or higher levels of batch documentation. Over time, we have upgraded record-keeping systems and implemented more sensitive analysis methods. In certain markets, expected standards rise every year, prompting us to preemptively adjust in-plant processes. In one instance, transitioning to a continuous operation system halved both downtime and waste generation for Acid Brown O compared to batch production.

    Working With Our Customers: Application and Feedback

    Long-term partnerships matter in the dye business. Over many years, brands and contract finishers from around the world have approached us with unique application problems. Sometimes a batch doesn’t perform the way it should in a customer’s plant. In other cases, a shade needs tweaking to match a designer’s expectations. Rather than dropping in a one-size-fits-all fix, we assign technical staff to assess what's really going on in the application environment. Often, the source of the issue might be elsewhere—treated water quality, temperature fluctuations, or incompatible finishing agents.

    Field visits have shaped many tweaks to our Acid Brown O. Early on, some dyers faced trouble with shade build-up on compact machines; adjustments to wetting agents on our end improved levelness after feedback. With paper customers, changes to powder granulation cut dusting during mixing, making the plant cleaner and reducing operator exposure. These small changes, born from daily use and long conversation with users, distinguish our manufacturing approach from generic brown dye suppliers.

    More recently, brand customers focused on traceability and certifications. Textile companies often need full production histories, responsible sourcing statements, and chemical composition reports. Over the years, building out transparent chain-of-custody tracking has paid off, especially when dealing with international brands that operate under strict chemical inventory controls.

    Research and Development: Meeting the Industry’s Next Needs

    No manufacturer can afford to stand still. Our in-house R&D program puts Acid Brown O through new tests every year, looking not just at conventional performance, but also at potential for new applications. Market shifts often surprise outsiders; trends in synthetic leather or high-performance paper create sudden demands for new shades, modified solubility, or lower-impact alternatives.

    The shift toward eco-friendlier chemistry has pushed us to explore alternate synthetic routes. Some years ago, we began working on ways to reduce process byproducts and recycler mother liquors internally. Early results show a 15% reduction in chemical oxygen demand (COD) in treated effluents versus legacy processes. Several universities collaborate with our lab, screening green oxidants and greener catalysts. We also field test these modified Acid Brown O lots for stability and shade fastness, only scaling up when tests show no compromise on quality.

    Even traditional customers appreciate these incremental improvements. Fast-moving trends—like more sustainable apparel—demand that a familiar product takes on new life by meeting modern standards.

    Comparing Powder and Liquid Forms: What’s Practical?

    Most requests arriving at our order desk ask for powdered Acid Brown O, but a small segment prefers pre-dissolved or liquid forms. On a production level, powders offer longer shelf life and lower transport weight, suiting most large textile mills or leather plants. Pre-dissolved liquid Acid Brown O saves time at smaller facilities lacking automated mixing, and it reduces dust.

    During humid summers or in coastal plants, some users tell us powders can clump if storage is poor. To address this, we’ve invested in extra drying steps and improved packaging, which hold up against accidental moisture entry during long shipping times. For customers sticking with liquid forms, we produce small-lot runs, making sure preservative systems keep the liquid stable during transit and storage. That’s rarely a problem for large powder users, but a necessary service for specialty shops.

    Future Outlook and Industry Perspective

    Acid Brown O stands out as an example of how core chemical products evolve to meet both legacy and modern requirements. Global pressures—shifting consumer preferences, regulations, and competition—keep us focused on both consistency and innovation. Now and in the years ahead, direct feedback and collaboration with clients guide our next steps.

    As new end uses for Acid Brown O emerge in technical and specialty sectors (recycled textiles, specialty papers, performance leather), our engineers track how modifications affect things like fastness, compatibility, and process stability. The best protocols in the dye sector come from manufacturers—not traders—who work closely with real-world users, ready to solve issues that arise when a product leaves the site and enters a production line on another continent.

    We encourage frank feedback about performance and challenges. If a customer’s acid b rown bath starts showing unexpected hue shifts or bath instability, we investigate, fine-tune our own methods, and sometimes recommend in-plant upgrades that customers hadn’t considered. Above all, our role expands beyond just selling dye—it’s about making sure Acid Brown O rises to match the demands of modern manufacturing, without sacrificing the reliability that keeps mills, tanneries, and papermills on spec and on schedule.

    Conclusion

    Acid Brown O reflects the lessons learned from decades of chemical manufacturing: consistency matters, customer feedback shapes improvements, and every step in the supply chain—sourcing, QC, environmental controls, logistics—plays a part in delivering value. Our process and product continue to adapt, supported by the expertise gained from both troubleshooting and long-term partnerships. We take pride in producing Acid Brown O that forms the backbone for so many finished goods, and we look forward to seeing how it shapes new generations of products in textiles, leather, and paper worldwide.

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