Solvent Blue R

    • Product Name: Solvent Blue R
    • Alias: C.I. 24410
    • Einecs: 207-518-8
    • 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

    997334

    Chemical Name Solvent Blue R
    Alternative Names Sudan Blue, Blue Black Base B
    Cas Number 1325-87-7
    Molecular Formula C29H24N2O2
    Molecular Weight 432.51 g/mol
    Appearance Dark blue to blue-black powder
    Solubility Soluble in organic solvents, insoluble in water
    Melting Point 210-213°C
    Usage Dye for oils, waxes, plastics, and polystyrene
    Lightfastness Good

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

    Packing & Storage
    Packing Solvent Blue R is packaged in a tightly sealed 500g amber glass bottle with hazard labeling and safety instructions for laboratory use.
    Shipping Solvent Blue R is shipped in tightly sealed containers, typically drums or bottles, to prevent leaks and contamination. It should be transported according to hazardous material regulations, protected from heat, moisture, and direct sunlight. Proper labeling, safety data sheets, and relevant shipping documentation accompany the consignment to ensure safe handling and compliance.
    Storage Solvent Blue R should be stored in a tightly closed container in a cool, dry, and well-ventilated area. Keep it away from sources of ignition, heat, and incompatible materials such as strong oxidizing agents. Protect from moisture and direct sunlight. Ensure appropriate labeling and store in accordance with local regulations and safety data sheet (SDS) recommendations for hazardous chemicals.
    Application of Solvent Blue R

    Purity 98%: Solvent Blue R with purity 98% is used in polyester fiber dyeing, where it ensures high color intensity and uniform shade distribution.

    Molecular Weight 375 g/mol: Solvent Blue R with molecular weight 375 g/mol is used in plastic coloring, where precise molecular properties enable consistent hue in polymer matrices.

    Melting Point 180°C: Solvent Blue R with melting point 180°C is used in high-temperature ink formulations, where thermal stability prevents premature degradation during processing.

    Particle Size 5 microns: Solvent Blue R with particle size 5 microns is used in automotive coatings, where fine dispersion results in smooth and streak-free finishes.

    Solubility in Ethanol 25 g/L: Solvent Blue R with solubility 25 g/L in ethanol is used in solvent-based pen inks, where rapid dissolution provides even coloration and reliable performance.

    Light Fastness Grade 6: Solvent Blue R with light fastness grade 6 is used in textile printing inks, where resistance to fading prolongs color vibrancy under UV exposure.

    Stability Temperature 120°C: Solvent Blue R with stability temperature 120°C is used in hot melt adhesives, where the dye maintains chromatic integrity at elevated processing temperatures.

    Viscosity Grade Low: Solvent Blue R with low viscosity grade is used in industrial paint manufacturing, where easy dispersion increases formulation efficiency and color homogeneity.

    Ash Content <0.1%: Solvent Blue R with ash content less than 0.1% is used in sensitive electronic component marking, where minimal residue prevents conductive contamination.

    pH Stability 4-8: Solvent Blue R with pH stability from 4 to 8 is used in aqueous dye solutions, where color consistency is retained across varied pH environments.

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    Certification & Compliance
    More Introduction

    Solvent Blue R – Colorfast Blues for Diverse Demands

    Not Just Another Dye—A Craftsman's Take on Solvent Blue R

    The market often gets crowded with dye solutions that look the same at first glance. Life in the plant teaches you quickly: beneath each batch number and pigment code, unique chemistry changes a product from generic to genuinely useful. Solvent Blue R stands as one of those direct outcomes of thousands of small process improvements and dogged attention to daily issues reported back by our end users, not just a formula out of a catalog.

    This dye, often referred to as Solvent Blue R or by its typical model identifier, presents a deep, true blue hue that stays stable even under conditions that send other dyes fading into memory. The core chemical composition relies on a triphenylmethane structure, but long experience tweaking reaction conditions brings out a clarity and depth of shade that holds up over time. Batch after batch, consistency keeps our partners returning to this blue instead of trying their luck with substitutions.

    The Know-How That Gets Results

    Customers turning to Solvent Blue R often look for a deep, rich blue, applied across a surprising range of jobs—plastics, coatings, inks, and even fuel markers. Each application comes with its unique headaches, especially around matching color standards and resisting migration or fading. Our team monitors not just the output, but the daily small signals in production that indicate whether something’s in spec or beginning to drift. We keep moisture levels in check during storage and ensure each shipment meets color intensity levels, so you’re not running unexpected pilot batches at your own cost.

    It’s remarkable to see the difference it makes for operators when they drop our grade of Solvent Blue R into a production mix, especially in plastics. Think about the high processing temperatures common in extrusion and injection molding. Blues with unstable structures lose shade strength or break down, changing the end result as well as processability. Our persistent testing and investment in purification let our blue survive tough cycles. That keeps color variance low and reduces frustration with off-shades, especially important for molded components or packaging materials where consistency sells products.

    Specifications Forged by Real-World Experience

    We don’t just pick specs out of a book to impress on paper. Solvent Blue R in our lineup matches specific needs called out by steady industrial clients. You can trust the melting range to fall where it’s supposed to, double-checked via DSC in routine QC. Our manufacturing approach controls particle size within a tight window, improving dispersibility in both low-viscous and more demanding resin systems. Small things like filterability and flow aren’t afterthoughts—they show up in the production plant every day. People downstream notice fewer filter blockages, less sediment, and easier batching when dye flows right.

    Solubility varies product-by-product, but our Solvent Blue R mixes smoothly in common organic carriers—toluene, xylene, esters, and many chlorinated solvents included. We take pains to ensure purity levels remain high, with fewer interfering byproducts, so what you see is what you get. Trace metallics or leftover synthesis intermediates sneak up in downstream tests, so we remove what we can at the source. We only sign off on batches that clear aggressive residual solvent scans, helping users comply with stricter end-user safety and environmental requirements.

    Colorfastness Wherever It Ends Up

    Getting a vibrant shade is one challenge. Keeping it from fading or running out of the substrate is another. The triphenylmethane base used in Solvent Blue R, paired with our process controls, gives solid resistance to sunlight and heat. Fuel marker applications push this to the limit—gasoline and diesel can be surprisingly harsh environments for dyes, but Solvent Blue R holds its own. In plastics, that resistance keeps finished goods from yellowing or turning dull with age, which can make or break a product’s retail appeal.

    Printing inks sometimes draw out the weaknesses in a dye formulation, so we work hand-in-hand with customers in offset and flexo to understand bleed potential, drying characteristics, and real-world printability. Many feedback cycles led us to improve residue levels in our blue, so even users with tight line-speed presses and demanding rub resistance standards get what they need without extra production modifications. We’ve found over time that inks based on our Solvent Blue R keep colors bright across large print runs, minimizing rejects and avoiding batch-to-batch tweaking.

    Why Solvent Blue R Outperforms the Standard Blues

    Not every blue behaves the same under fire. Some rely solely on strong initial color but lag in migration or lightfastness. Cheaper alternatives often suffer when exposed to acids, softening the vibrancy and creating irregularities that only show up after scale-up. Drawdown panels and accelerated weathering tests in our in-house labs regularly show Solvent Blue R outshines other common blues—less leaching, steadier shades, and greater coverage per kilogram. Even among manufacturers, the difference between a quick synthesis and a carefully paced one determines the transparency, brilliance, and dispersibility of the final dye.

    A regular comparison comes up against Solvent Blue 35, a common option for many ink and plastic users. While both share a triarylmethane backbone, users tell us Solvent Blue R’s deeper tone and higher purity show up clearly in trial runs. We see fewer issues with clogging in printing heads, better film integrity for coatings, and more robust results for fuel identification. Tint strength holds up better batch-to-batch—less adjustment, tighter process controls, and fewer warranty or complaint tickets down the road.

    Strength in Versatility

    The real test for any dye isn’t just how it starts but where it can go. Solvent Blue R continues to find new uses each year. Plastics manufacturers cite its compatibility with polyolefins and styrenic materials, where it doesn’t bleed or migrate even after multiple reprocessing cycles. For fiber and textile dyeing, the blue survives aggressive wash and light exposure, meeting international fastness standards that keep fabric houses confident.

    Lubricant and grease producers reach for Solvent Blue R because it imparts a visible hue without changing functional properties. In the lab, performance in mineral and synthetic bases matches that of more specialized blue dyes, but at a lower cost with fewer issues during blending. Solvent recovery teams in large coatings facilities tell us the blue doesn’t complicate oil/water separation systems or foul out filter beds. Over and over, the feedback drives us to fine-tune.

    Practical Usage—No Theoretical Promises

    On the floor, handling Solvent Blue R feels straightforward. Each bag is engineered to minimize dust and clumping, making transfer into mixers smooth for operators. The powder disperses efficiently, slashing time spent on agitation, and downstream equipment stays cleaner thanks to reduced residue. Our support teams field real-world questions about optimal addition points and mixture loading, so we base blending instructions on technical experience rather than vague theoreticals. Storage instructions remain simple: protect from moisture, direct sunlight, and open air, as any standard organic colorant would require.

    From large lot manufacturing down to drum and even 10 kg pail formats, we tailor the delivery only after understanding the intended use. Some applications, like liquid ink makers, opt for custom pre-dispersions for faster mixing and less waste. Others in polymer compounding demand granulated forms to avoid static and dusting. We adjust not just to keep costs in line, but because a one-size starter stock invites problems across a broad spread of uses. The difference between smooth adoption and a string of plant stoppages is in these practicalities.

    Feedback Means Everything

    We make Solvent Blue R in response to direct dialogues with customers. From large multinational customers to independent processors, we track every complaint about batch variability, dusting, or handling mess. More than once, a well-placed suggestion led to us adjusting our drying stage, extending mixing times to boost homogeneity, or adjusting powder treatments to cut static. Faith in a product grows only after multiple cycles of feedback and visible improvements across real production floors.

    Our technical teams invest time in supporting new users with color matching, solubility tests, and sample blends. No customer wants to hear theoreticals. We prefer to demonstrate, letting you test the dye under your normal process conditions, rather than betting on claims or lab-only data. Across multiple pilot projects—inks, plastics, lubricants, and markers—the focus swings to spot any performance limits and iron out pain points before moving to scale. That’s the way our industry keeps losses down and trust high.

    Environmental Responsibility and Beyond

    We take pride in running a plant where care for the environment is woven into every batch of Solvent Blue R. Effluent from production is rigorously treated and monitored. We keep solvent recovery rates high, minimizing waste sent out for disposal. Every shipment goes out with clear traceability, not just to address compliance audits, but to ensure confidence downstream. Meeting—and regularly exceeding—environmental impact goals is a direct investment not in abstract “sustainability,” but in everyone’s daily safety.

    Packaging design continues to evolve as legislation moves and end-users look for easier handling and less plastic. We now ship in redesigned sacks with minimized film layers and more robust protections against leaks and exposure—a direct result of years of feedback from warehouse teams and transport managers. Regulatory trends also keep shifting, especially in regions that monitor synthetic colorants in food, fuel, and textiles. We build certification into each record and are upfront about compositional details so you can make informed choices. No surprises, no vague material claims.

    What Stability Really Means for You

    A dye can boast high tint strength, but if it builds up on equipment, leaves haze, or loses shade in a finished article, the end value collapses. Stability, in our experience, comes from long learning cycles—tightening filtration, improving solvent stripping, controlling pH, and regular cross-talk with users who notice small shifts long before an inspector does. Solvent Blue R reflects this process, not claims on a spec sheet. Over and over, users report less downtime, fewer color complaints, and easier line cleaning after switching from lower grade alternatives.

    Even small tweaks—like optimizing particle size so the dye doesn’t hard pack during long storage or transit—pay dividends later. No batch sits idle, and goods keep moving, which matters in an industry where small delays multiply costs quickly. We build for those tough conditions where storage isn’t perfect, where operators have to hustle, and where every step toward easier handling and blending comes from a history of hard lessons and careful fixes.

    Comparisons: Solvent Blue R and Other Blues

    Ask ten processors which blue to use, and you’ll hear at least five different answers. Many turn to generic blue dyes in hopes of cutting costs—often to find that the end result falls short in tinting strength or stability. Over the years, we have run direct comparisons, head-to-head, with commonly used blue dyes, including variations based on both benzene and naphthalene rings. Solvent Blue R’s clarity and fastness establish clear advantages where it matters—color payoff, stability under process heat, and compatibility across an array of matrices.

    Print shops find Solvent Blue R delivers greater color intensity per gram than other classically available blues, and the pigment disperses without the small gels or specks that lead to rejects. In markers for fuels, our customers notice prolonging detection time and easier identification, thanks to an intense but non-intrusive shade. Formulators in plastics compound more confidently, knowing their end product’s color resists fade whether stored indoors or exposed to sunlight. Every step we take at the factory level is to reduce end-user headaches and avoid tradeoffs that cause more trouble down the line.

    Supporting Growth Through Collaboration

    The relationship doesn’t end with the shipment. We take on-site feedback seriously, sending technical representatives to review application issues and fine-tune manufacturing support as needed. Sometimes, this means adjusting blend ratios with other colorants for custom shades or tweaking physical forms to match new equipment. Our open-door policy with regular users gives everyone a stake in getting the best results from Solvent Blue R.

    Long-standing partners get early access to improved processes and joint evaluations of incoming raw materials. This goes well beyond standard supplier interaction; it’s a two-way street that keeps pushing our performance benchmarks higher. Continuous dialogue—and a habit of acting when users spot new issues—keep us ahead in a world where changes in legislation, market demand, and technology never slow down. We run trials at plant scale, not just in the lab, because actual conditions rarely reflect theory.

    Learning From Every Batch

    Attention to detail doesn’t stop once a product reaches market. Our in-house lab tracks retention samples for every batch, and every outlier gets a thorough investigation. Any problem reported back—be it sediment, off-odor, inconsistent flow—is added to a growing body of process data. Over time, that information translates not just to specification tightening, but to smarter process tweaks and better operator training. We don’t believe in a finished formula—there is always another opportunity to improve.

    Customers who have watched our evolution over decades know this well. Each cycle of feedback, validation, and adaptation raises the floor on what users expect from Solvent Blue R. New standards never come from a vacuum—they build on both trouble calls and compliments, keeping the push for higher reliability always moving forward.

    Final Thoughts: Trust Goes Beyond the Label

    At the core, Solvent Blue R isn’t just a dye lifted from a database; it reflects years of steady improvement, on-the-ground support, and real consequence learning. Direct discussions, hands-on support, and willingness to adapt keep quality up and costs down for those who work with us. Factories, printers, and chemical processors count on more than just color—a predictable, stable outcome matters. Through hundreds of test runs, user debates, and process cycles, we learn what matters most in your business. That’s the legacy built into every shipment of Solvent Blue R produced by our team.

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