Acid Red 50

    • Product Name: Acid Red 50
    • Alias: Croceine Scarlet 7B
    • Einecs: 219-232-0
    • 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

    689601

    Name Acid Red 50
    Chemical Formula C20H6Br4Na2O5
    Cas Number 6227-14-1
    Ci Number CI 14850
    Appearance Reddish powder
    Solubility Soluble in water
    Molecular Weight 691.8 g/mol
    Melting Point Decomposes
    Ph 1 Solution 6.0-8.0
    用途 用于食品、药品和化妆品染色
    Stability Stable under normal conditions
    Synonyms Ponceau 4R
    Odor Odorless
    Light Fastness Moderate
    Storage Conditions Keep container tightly closed in a dry, cool place

    As an accredited Acid Red 50 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Acid Red 50 is packaged in a sealed 500g plastic bottle, labeled with hazard symbols, product name, and batch information.
    Shipping **Shipping for Acid Red 50:** Acid Red 50 should be shipped in tightly sealed containers, protected from moisture and direct sunlight. It should be clearly labeled and handled according to local, national, and international regulations for chemicals. Avoid contact with incompatible substances, and transport with proper documentation and safety data sheets (SDS) included.
    Storage Acid Red 50 should be stored in a tightly closed container in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Protect it from moisture and direct sunlight. Clearly label the storage area and keep it away from food and drink. Use appropriate personal protective equipment when handling to avoid inhalation, ingestion, or skin contact.
    Application of Acid Red 50
    Purity 98%: Acid Red 50 with purity 98% is used in textile dyeing, where it ensures vibrant and uniform coloration on natural fibers. Particle size 200 mesh: Acid Red 50 with particle size 200 mesh is used in ink formulation, where it delivers smooth dispersion and consistent print quality. Molecular weight 604.47 g/mol: Acid Red 50 at molecular weight 604.47 g/mol is used in paper staining, where it provides controlled color development and sharp contrast. Melting point 300°C: Acid Red 50 with melting point 300°C is used in plastic masterbatches, where it maintains color integrity during high-temperature processing. Stability temperature 120°C: Acid Red 50 with stability temperature 120°C is used in leather finishing, where it offers sustained colorfastness under thermal treatment. Water solubility 65 g/L: Acid Red 50 with water solubility 65 g/L is used in aqueous paint systems, where it enables rapid dissolution and homogeneous tinting. Light fastness grade 4: Acid Red 50 with light fastness grade 4 is used in poster paints, where it ensures moderate color durability under exposure to light. pH stability 3–7: Acid Red 50 with pH stability 3–7 is used in food additives, where it maintains color consistency across a variety of formulations.
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    Certification & Compliance
    More Introduction

    Acid Red 50: Insight from the Production Floor

    Turning Raw Ingredients into a Trusted Dye

    Crafting Acid Red 50 every day takes a committed team and a close eye on every batch. In the facilities, workers handle the full synthesis from start to finish, transforming base chemicals into a chemical dye trusted by manufacturers worldwide. The red color might seem simple on a finished thread or a bottle of ink, but behind it sits years of small improvements. Every adjustment in reaction time or cleaning routine shows up in the final product. Production lines need to stay steady, from the raw aromatic intermediates all the way to drying and blending the final powder. For us, this dye isn’t just another SKU—it captures decades of material know-how, direct feedback from textile mill managers, and daily problem solving on the plant floor.

    The Realities of Quality Control

    Much has been said over the years about lab standards and certifications, but output always comes down to what actually arrives at the customer’s door. Acid Red 50 leaves the plant only after handling a battery of real-world tests. Plant chemists run purity checks that don’t stop at paperwork—they go into how the dye strikes a shade and holds color under simulated processing conditions. Customers specializing in silk or nylon notice subtle variations in hue or runnability, so batches rarely run on reputation alone. If there’s one thing years of dye plant work have shown, it’s that nothing replaces a batch-wise approach: chromatographic scans, shade matching on real fiber, and a constant eye for unexpected changes. Recalls or inconsistent batches waste everyone’s labor and build-up costly downtime, and the factory can’t pretend the mistake sits somewhere else in the chain.

    Differentiating Acid Red 50

    Some may assume one acid dye equals another, but the experience from repeat partners tells a different story. Acid Red 50, known by its Colour Index name and its structure based on azo chemistry, easily sets itself apart from others in the red spectrum like Acid Red 1 or 18. It offers a moderate to strong affinity for protein fibers such as wool and silk, and its performance on polyamide blends is a key reason technical textile producers come back season after season. Handling differences matter: Acid Red 50 disperses in water with minimal clumping, sidestepping the operational headaches that sometimes plague other dyes. Dyers note its consistent tone intensity and the way its migration makes large batch dyeing more predictable.

    Long discussions with finishing supervisors echo one point: dyeing isn’t just about color, it’s about process reliability. Factories value Acid Red 50 for a color that doesn’t fade quickly under light exposure, yet avoids the heavy metal issues associated with some alternatives. In applications needing sharp batch-to-batch consistency, such as high-end fashion or precision printing, the subtle differences in shade and fastness separate true manufacturers from generic suppliers. Clients have reported lower reject rates since switching from less stable reds, pointing to reduced reprocessing costs and clear labor savings.

    Meeting Industry Demands

    Monitoring trends within textile, paper, and ink manufacturing uncovers how Acid Red 50 stands up to shifting needs. Digital ink producers have new demands for fine particle sizes, while classic textile houses still want predictable exhaust and fixation rates. The entire production floor adjusts equipment and techniques to answer these needs—a change in filtration, a tweak in milling cycles, or a new QA checkpoint shows that the dye's journey doesn’t end at the reactor. For printers pursuing deep, even coverage, thicker slurries and additives often complicate the formula, yet Acid Red 50 responds well to typical stabilizers, meaning less troubleshooting at the customer site. This isn’t anecdote; field tests supplied by end users continue to inform yearly investments in production upgrades and laboratory technology.

    Long-Term Improvements: Small Steps, Big Impact

    Continuous improvement shapes each drum leaving the warehouse. Feedback loops between the plant and its customers stretch back decades. Once, a leading silk mill described inconsistent washing-off properties. Adjusting the concentration of key sulfonation agents in production led to a more washable, less staining dye, reaching results in both lab beakers and full production finishing rooms. Over years, each point of friction in the field triggered tweaks—different filtration techniques, changes to pH control, stricter raw material checks. The mainstay isn’t a secret formula but an open-minded culture across lab and line workers.

    Not every change earns a big announcement. Workers on the drum line catch granule size drift early or identify a faint off-tone that could result in hours of lost labor for a downstream dyer. Improvements to powder handling, reductions in airborne dust, and more ergonomic packaging feed back into the overall production experience. The sum of these changes shows up in the routine praise from buyers who have fewer process interruptions and sharper color matches than with competitive alternatives.

    Usage in Real Applications

    Every plant manager hears different priorities but ends up facing similar material challenges. Apparel factories running high-throughput dyeing value the way Acid Red 50 processes: not too aggressive on delicates, yet persistent enough to hit specified chroma levels on both wool and synthetic-polyamide blends. Artisans producing silk scarves praise its resistance to fading after multiple hand washes. On the paper side, makers of decorative tissues and wrappings seek clarity in shade and resistance to feathering or bleed. Our long-standing collaboration with ink formulators points to another advantage—the dye’s solubility profile lets them scale production batches with less fear of settling or nozzle clogging.

    End users have shared stories: textile printers showing off batch logs free of “mystery” shade shifts, station foremen noting smoother batch rinses and less residual wash waste. Print houses enjoy seeing clear reds printed across both glossy and absorbent surfaces. In the world of specialty coatings, Acid Red 50 blends with thickener systems for unique surface effects that standard reds struggle to replicate without compromising chemical stability. Veteran operators sometimes reference a particular shade brightness or ease in blending into compound formulations as key to product differentiation over competitors who stick to legacy reds.

    Environmental and Regulatory Responsibilities

    Strict environmental oversight governs every step from procurement to shipment. We select raw materials from vetted suppliers, aware of trace contaminant risks and compliance regulations in all major export destinations. Emission controls on the production line have cut plant discharge into the surrounding area over recent years. Our facilities comply with current industrial standards addressing worker safety, effluent handling, and hazard labeling. Azerbaijan to Brazil, clients need documentation, and those requests drive steady upgrades to our tracking and reporting systems.

    Plant initiatives tackling waste reduction came directly from worker committees flagging unnecessary scrap and expired inventory. Updated workflows limit product loss, and inclusion of recovery units in the wet stages recycles a larger share of spent water. On one key occasion, a prospective customer requested strict adherence to a local restricted substance list that required plant-wide adaptation. Adjusting blends and refining trace element controls in Acid Red 50 let us meet these stringent benchmarks, which then set a new internal baseline for all batches.

    Changing with Market Needs

    The Acid Red 50 market doesn’t sit still. Buyers in technical textiles push for substitutes with even lower allergen profiles while keeping the same deep red. The plant team reviews emerging technologies regularly—from improved water-based granulation to bio-based intermediates—balancing cost, safety, and customer process requirements. Every production season we pilot new approaches, often in response to direct customer requests for modifications in taste or performance. Some shift toward microencapsulation, striving for less dye run-off and improved shelf life in blended masterbatches.

    We keep an ear to the ground about regulatory changes. Markets in North America and Europe request updated REACH compliance evidence, plus documentation of heavy metal content down to the sub-ppm range. Our in-house lab invests in instrument upgrades to match faster response times, fulfilling audit requests without last-minute scrambles. In many cases, these adaptations feed product improvements upstream, benefiting every customer batch regardless of end destination.

    Navigating Global Logistics

    Moving Acid Red 50 safely from the warehouse to distant mills presents frequent logistical puzzles. Shipped in moisture-proof drums, the dye needs careful containerization to resist caking and degradation under changing climates. Packing lines regularly update procedures in response to customer reports of clumping or spilled inventory. Customs documentation and cross-border labeling requirements change from year to year, forcing constant double-checking and advance preparation. That vigilance helps avoid the headaches of port delays, lost shipments, or claims around quality upon arrival.

    Those closest to the loading docks know how a week of excessive rain or port congestion can threaten seamless delivery. Flexible inventory planning and strong lines of communication between logistics planners and customer partners act as essentials, not luxuries. In some instances, dedicated rush batches move by air freight to keep production lines running overseas; years of building personal trust keep these relationships stable when the global shipping landscape feels unpredictable.

    Looking Ahead: Building on a Familiar Red

    Years of making Acid Red 50 reinforce that no two production runs feel the same—but everyone in the plant feels pride seeing fabric or print turn a deep, vibrant red in the world’s markets. Customers expect stability as well as partnership. Behind every drum stands equipment operators, QA workers, logistics planners, and technical consultants comparing countless samples and logging every possible deviation. We see firsthand how the smallest formulation improvement, process tweak, or packaging change can ripple through supply chains, shifting the experience for craftspeople on the other side of the world.

    Direct relationships with customers drive internal innovation. A single unresolved trouble ticket, a batch return, or new technical request kicks off days of discussion and experimentation. In the end, crafting Acid Red 50 isn’t about chasing quick wins or easy profits—it’s about a reputation forged across years of production, honest field testing, and steady adaptation. That practical approach—balancing chemistry with daily realities, and feedback with fast response—keeps the product at the center of specialty applications everywhere that demands both vibrant color and real-world reliability.

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