Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing sales7@sinochem-nanjing.com 3389378665@qq.com
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Basic Violet 2

    • Product Name Basic Violet 2
    • Alias Rhodamine B
    • Einecs 208-253-0
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    488095

    Chemical Name Basic Violet 2
    Other Names Methyl Violet 2B
    Cas Number 8004-87-3
    Molecular Formula C24H28N3Cl
    Molecular Weight 393.95 g/mol
    Appearance Purple powder or crystals
    Solubility Soluble in water and alcohol
    Melting Point 137-138°C (decomposes)
    Dye Class Cationic dye (basic dye)
    Usage Textile dyeing, biological staining, ink manufacturing
    Color Index Number 42520
    Toxicity Harmful if swallowed, may cause skin and eye irritation

    As an accredited Basic Violet 2 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Basic Violet 2 is packaged in a 25 kg net weight fiber drum, lined with plastic, and labeled with hazard and product information.
    Shipping Basic Violet 2, also known as Methyl Violet 6B, should be shipped in tightly sealed containers, away from light and moisture, and clearly labeled as hazardous. It must comply with relevant transport regulations for toxic and environmentally hazardous substances, using appropriate packaging and documentation to ensure safe handling and delivery.
    Storage **Basic Violet 2** should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from direct sunlight, incompatible substances, and sources of ignition. Avoid moisture and strong oxidizers. Proper labeling and secure shelving are recommended to prevent leaks or spills. Personal protective equipment (PPE) should be available near the storage area for safe handling.
    Application of Basic Violet 2

    Applications of Basic Violet 2 in Industrial Manufacturing

    As a direct manufacturer with extensive technical expertise in basic dyes, we supply Basic Violet 2—also known as Methyl Violet 2B—for established industrial applications. The following application scenarios detail recognized downstream uses, with a focus on compliance, recipe integration, workflow fit, and actual finished goods from each sector.

    1. Paper Industry: Tissue and Stationery Paper Coloring

    Producers use Basic Violet 2 to impart vibrant violet and purple hues to tissue paper, colored paper, and certain board grades. Its cationic properties ensure strong affinity to cellulosic fibers, even during rapid machine coloration. The dye achieves high color intensity with moderate light fastness, addressing decorative, indicator, and specialty paper requirements.

    Industry compliance standards

    • EN 646 (European regulation for dye migration in paper)
    • ISO 9706 (Paper—Permanence for archival use)
    • Restriction of Hazardous Substances (RoHS) for packaging components
    • REACH Annex XVII for restricted aromatic amines (batch traceability and declaration required)

    Typical usage ratio

    • 0.05%–0.3% on oven-dried pulp, adjusted to fiber type and desired shade depth
    • Lower dosages preferred for thin notepaper, higher for decorative grades

    Downstream process integration

    • Dye added directly to the beater or mixing chest before sheet formation
    • Suitable for continuous coloring in Fourdrinier or cylinder mould processes
    • Optional inclusion in size press for surface tinting when fiber coloration is insufficient

    Final product types

    • Colored tissue paper (e.g., gift wrap, party supplies)
    • Special stationery (e.g., purple writing paper, envelopes)
    • Color-coded paper tape and labels
    • Indicator paper grades (e.g., pH test strips incorporating acid/base dyes as reference)

    2. Textile Industry: Acrylic and Polyamide Fiber Dyeing

    Basic Violet 2 demonstrates high substantivity to synthetic fibers such as acrylic and polyamide, allowing textile finishers to achieve deep violet, bluish-purple, and magenta tones in yarns and fabrics. Its good build-up and moderate wet fastness meet fashion and upholstery demands, while enabling batch and continuous dyeing methods.

    Industry compliance standards

    • OEKO-TEX® Standard 100 (Annex 6): limit values for extractable amines and cationic dyes
    • ZDHC MRSL 3.1 (Zero Discharge of Hazardous Chemicals Manufacturing Restricted Substances List)
    • GB/T 17592-2011 (Decomposable carcinogenic aromatic amines textile testing—China)
    • ISO 105 (Colour fastness test methods)

    Typical usage ratio

    • 0.08%–0.5% on weight of fiber (owf) for full shade; reduced to 0.02% for pale tints
    • Dosage tailored based on fiber type, liquor ratio, and desired depth

    Downstream process integration

    • Batchwise dyeing: Entered at start of liquor in jet, winch, or package dyeing units
    • Continuous dyeing: Padded onto fiber tow or yarn, followed by thermofixation and wash-off
    • Blending with other basic or reactive dyes for extended color range

    Final product types

    • Dyed acrylic and polyamide yarns for knitwear and carpets
    • Woven and nonwoven fabrics (e.g., sportswear, outerwear, automotive upholstery)
    • Textile trimmings, embroidery threads, and decorative braids

    3. Leather Industry: Vegetable-Tanned and Chrome-Tanned Leather Finishing

    Basic Violet 2 finds ongoing use in leather finishing shops for surface dyeing and shading effects, particularly where vibrant purple or deep magenta colorations are specified. Its high brilliance enables uniform application on both vegetable-tanned and chrome-tanned hides, supporting special fashion, automotive, and accessories lines.

    Industry compliance standards

    • EN 71-3 (Leather used in toys: Migration of certain elements)
    • ISO 17075 (Determination of chromium VI content in leather)
    • LWG (Leather Working Group) Restricted Substances List
    • REACH compliance regarding use in consumer-facing products

    Typical usage ratio

    • Surface application: 0.1%–0.4% of finished leather weight
    • For full-dip processes: up to 0.6%, adjusted for desired hue and base hide absorption

    Downstream process integration

    • Spray, paddle, or drum application as the dye step after neutralization and fatliquoring
    • Used in waterborne finishing emulsions for topcoat adjustments
    • Lacquer finishing for high-gloss or metallic-effect leather

    Final product types

    • Fashion leather for handbags, wallets, and belts
    • Upholstery leathers for furniture and high-end vehicles
    • Accessory leather goods, footwear linings, book covers

    4. Ink Manufacturing: Ballpoint, Gel and Marker Ink Formulation

    Basic Violet 2 enters formulations in the ink industry thanks to its intense shade, high solubility, and compatibility with both oil-based and water-based vehicles. Ink manufacturers use it to produce violet, purple, and magenta shades in a wide range of stationery products. It delivers concentrated color in low-dosage recipes and enables smooth flow and robust laydown characteristics.

    Industry compliance standards

    • EN 71-3 (Safety requirements for inks used in writing instruments for children)
    • ISO 12757-1 (Requirements for ballpoint pens and inks)
    • ASTM D4236 (Labeling of art materials for chronic health hazards)
    • RoHS Directive for packaging and plastics used with inks

    Typical usage ratio

    • 0.2%–1.2% by mass in fountain and gel pen inks
    • For marker ink: 0.5%–1.7%, adjusted for base resin system and required opacity

    Downstream process integration

    • Dispersed in glycol, glycerol, or alcohol solutions during ink concentrate production
    • Filtered and milled with pigment stabilizers prior to blending in the main ink base
    • Compatible with resin and solvent variations for flexible production lines

    Final product types

    • Office pen inks (e.g., ballpoint, roller, fountain pens)
    • Gel ink and highlighter marker fluids
    • Art calligraphy sets and color indicator pens

    5. Laboratory and Diagnostic Applications: Biological Staining Reagents

    Basic Violet 2 is employed by suppliers of laboratory reagents as a primary staining agent for certain histological and cytological protocols. Its affinity for biological structures, such as cell nuclei and bacterial cell walls, enables precise differentiation in microscopy. Research and clinical laboratories rely on its purity and batch consistency for dependable diagnostic outcomes.

    Industry compliance standards

    • European Pharmacopoeia chapter 4.1 (Reagents and solutions—quality for in vitro use)
    • ISO 9001:2015 (Quality management for laboratory supplier chain)
    • CLSI GP42 (Preparation and testing of stained microscopic slides)
    • Good Laboratory Practice (GLP) standards for reagent traceability

    Typical usage ratio

    • 0.001%–0.05% in aqueous or alcohol-based staining solutions, depending on target tissue and staining protocol
    • Prepared in standardized concentrations for mass histology or bacteriology slides

    Downstream process integration

    • Dissolved into pre-measured buffer or alcohol solution to formulate ready-to-use stains
    • Filtered and aliquoted for slide staining kits or diagnostic test packages
    • Used as primary or counterstain in various multi-step staining procedures

    Final product types

    • Biological staining kits (e.g., Gram staining kits, nuclear stains)
    • Pre-mixed laboratory solutions for histopathology labs
    • Diagnostic slides for research and medical analysis (cell cultures, tissue biopsies)

    6. Polyacrylic Plastic Coloring: Mass and Surface Tinting

    Plastic processors select Basic Violet 2 for coloring acrylic and polycarbonate resins, where it offers high transparency, strong color brilliance, and consistent performance under extrusion and moulding conditions. This colorant supports decorative, automotive, and light-diffusing plastic grades, while matching the fastness and migration expectations of end users.

    Industry compliance standards

    • EN 71-3 (Safety requirements for plastic toys)
    • REACH Article 33 (Chemical safety information for plastics)
    • ISO 4892 (Weathering and color fastness test for plastics)
    • UL 94 (Flammability for finished plastic parts—coloration must not influence rating)

    Typical usage ratio

    • 0.02%–0.15% by weight of plastic resin, depending on desired shade strength and transparency
    • Lower dosages preferred for clear grades, higher for opaque or concentrated masterbatches

    Downstream process integration

    • Pre-blending into masterbatch or direct addition during resin melting and compounding
    • Used in injection moulding and extrusion lines at the pelletizing or extrusion step
    • Compatible with both solvent-dye applications for surface tint and mass coloration techniques

    Final product types

    • Colored acrylic sheets and rods (e.g., display panels, signboards)
    • Transparent polycarbonate covers and fixtures
    • Plastic accessories for electronics, automotive trim, leisure products
    Free Quote

    Competitive Basic Violet 2 prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to sales7@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: sales7@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Introducing Basic Violet 2: A Manufacturer’s Perspective on Performance and Application

    Looking Up Close at Basic Violet 2

    Basic Violet 2, often recognized by its distinctive strong fuchsia shade, stands as one of those time-tested dyes we’ve been making since our earliest days in the colorants industry. In our production facility, we follow established synthesis pathways using premium-grade raw materials: the end result is a robust dye that delivers a punchy, long-lasting color. Over decades, the formulations and controls haven’t just “improved”—they’ve reached a level where batch-to-batch consistency and product purity are now crucial benchmarks. As we keep quality at the core, the violets that come off our lines consistently hit their target shade and purity, avoiding any fuzziness or unwanted undertones.

    Technical Model and Specifications

    Internally, we refer to this product as Basic Violet 2, or sometimes as Methyl Violet 2B, echoing its recognized chemical nomenclature. Every batch leaves our reactors with the full set of technical measurements logged: melting points, moisture content, pH range, and dye strength are recorded under strictly controlled conditions. We rely on spectrophotometric evaluation to make sure each shipment falls dead center in both absorption wavelength and color fastness. Years of feedback from textile, paper, and ink manufacturers have shaped our processes, ensuring our material doesn’t just look good in the lab, but also performs without surprises across real-world production lines.

    We never cut corners with raw materials or synthesis control. The aromatic amines and methylating agents we use are sourced only from partners audited for quality, as even trace impurities affect color clarity or safety. Finished dye appears as a shiny, almost metallic crystalline powder—each granule shows off an intense, rich violet, that is neither too blue nor too red. Particle size matters more than most suspect: too coarse and it resists wetting, too fine and it dusts everywhere. We target a median that blends easily into aqueous and alcohol solutions so that operators mixing the dye feel confident in the repeatability of batching, whether using open pans, high-shear mixers, or continuous systems.

    Performance in Application

    In the dyehouse, this violet earns its reputation for resilience, offering reliable color yield across cotton, silk, and a range of synthetic blends. Our customers in the textile business usually run it in combination with other basic dyes to get the richer tones demanded by seasonal fashion trends. Fabrics catch this dye quickly, often resulting in vibrant shades with only a brief immersion time under modest heating. For paper manufacturers looking for strong, non-bleeding color, Basic Violet 2 gives clean results—practically no bleeding or fuzzing during the drying or converting process.

    Our in-house technicians spend long days benchmarking this product against imported alternatives. They notice it stands out in color strength and evenness, especially in large-lot continuous dyeing operations where operational hiccups are costly. Since our engineering teams run both batch and continuous reactors, we’ve tailored our formulation to resist foaming, a tricky issue that can crop up in automated setups. We keep technical support active on customer sites, walking their lines and watching for color drift or precipitation problems. Only by actually seeing these processes in action have we tuned our filters and blending points to keep particles free from agglomeration, which boosts solubility and color clarity.

    Use Beyond Textiles and Paper

    Outside mainline textile and paper, Basic Violet 2 finds life in ink, leather, wood staining, and plastics. Ink makers, especially those producing flexographic and water-based printing inks, gravitate to this dye for its compatibility and straightforward blending. Storage stability is a must—nobody needs a dye that clumps or crystallizes during a humid summer or a cold truck ride. We run extended lab soaks to check for any signs of fading or settling, and pass on honest results to customers. Ink pigmenters notice that our Basic Violet 2 disperses quickly, maintains strong color definition, and avoids the muddiness that some lower-quality violets bring.

    In leather, chemical compatibility often separates dyes that actually bond from those that just sit on the surface. Tanners using our violet report that, with proper fixing, the dye takes up well, providing deep, uniform color. Plastic processors, especially those running ABS or acrylic, note our product maintains its sharpness even under moderate heat—a valuable trait for molded toys or decorative objects where other dyes may shift or fade.

    Environmental Considerations: Working Toward Safer and Cleaner Chemistry

    Running a manufacturing operation these days means owning up to the environmental footprint. We source raw materials with traceability, monitor effluents, and keep a tight focus on byproduct minimization and recovery. There’s pressure across the whole value chain to limit aromatic amine residues and improve biodegradability. We have invested in in-line analytics that continually check for regulated compounds, including those flagged by current REACH and local chemical codes. If anything deviant appears, we know about it before the lot ever leaves our gates.

    More customers—especially in the EU and North America—ask detailed questions about regulatory compliance and safety. Lab audits don’t end with the dye itself. We test for heavy metals, allergenic byproducts, and unreacted amines; results are checked by our dedicated compliance officers, not just passed along from a vendor. Customers have access to real product histories, and we share all test data transparently. You’d be surprised how many large companies inspect the entire process, from raw stock tank to boxed shipment. We welcome those visits, knowing our approach gets stronger under scrutiny.

    Comparison: Basic Violet 2 Versus Other Basic Dyes

    Not all basic dyes play the same. Experience has shown us, for example, that Basic Violet 10, another bright violet, tends to move bluer in tone and can fade noticeably in light-exposed environments. The Basic Violet 2 we manufacture offers better lightfastness and a warmer, more purple-leaning tone. Some customers experimenting with Basic Fuchsine (Magenta) notice quicker color loss in alkaline conditions, while our product remains stable across a moderate pH range.

    We’ve run competitive evaluations side-by-side. Basic Blue 9, for example, overlaps possible color targets but falls short on intensity and on resisting washing. Our Basic Violet 2 sits well in bright, medium-depth shades and supports fine detail in printed or patterned goods where color “creep” or smudging must be avoided. The solubility profile also distinguishes it: we achieve rapid wetting and dispersal, especially compared with older-generation basic dyes. This cuts down on undissolved particles and eliminates shadowing, an overlooked but important point in fast-paced commercial production.

    Health and Safety: Doing the Right Thing

    Handling basic dyes safely takes more than just gloves and a well-written manual. In our own plant, operators wear fitted PPE and run machinery under carefully monitored fume extraction. We keep real-time monitors on-hand for methylated byproducts, plus a routine schedule for checking atmospheric levels in blending and packing rooms. Every lot stays traceable right down to its synthesis hour. We take seriously the global focus on limiting worker exposure; where automation reduces risk, we put in the capital. Safety isn’t a “line item” for compliance, it’s baked into daily operations—equipment cleans, waste recovery, and back-vented process controls all get priority.

    We openly discuss labeling and hazard data with clients. Over the years, large industrial users have shared their own accident and spill records, teaching us what works and where prevention measures have gaps. Outdated storage—like legacy drum stock or half-sealed pails—contributes more to safety incidents than any property of the dye itself. We encourage moving to sealed, tamper-evident packaging, and tool-up with proper extraction, not just spot cleaning. On downstream sites, training should go well beyond the minimum; using our experience, we routinely offer seminars or site walkthroughs so client staff understand both best practice and potential hazards—exposure, ingestion risk, and environmental release all get serious attention.

    End-User Stories: How Basic Violet 2 Performs in the Field

    Getting unfiltered feedback from working dyehouses and converters matters just as much as reading lab test sheets. One of our oldest textile clients runs a seasonal dyeing program for vivid scarves, and their team relies on our Basic Violet 2 every spring. They have switched away from imported alternatives because the color doesn’t shift or bleed during rinsing—a win for both process speed and end-user satisfaction. Paper makers using lower-quality violets sometimes report streaking or background haze on fine stationery; with our product, those complaints essentially disappear.

    Small-batch hobbyists using this dye for art papers and hand-crafted inks have provided detailed notes about shading and migration. We learn where the formulation still falls short—such as with specific additives or in unusually humid conditions. By bringing these lessons back to the production bench, we test tweaks in grind profile, moisture pre-conditioning, or surfactant blends. Each year, these exchanges feed back into refining the product, not just for the mass producers but also for the cottage-scale users with unique requirements.

    Supply Chain and Packaging: Real-World Practicalities

    On our production side, inventory planning isn’t just about keeping warehouses full. We maintain a steady buffer stock to absorb supply chain hiccups—strikes, port delays, or sudden spikes in demand from big market regions. Logistics teams review climate control not just for compliance but to keep condensation and contamination issues at bay. Each drum or pail leaving our facility bears a unique identifier, tied to full QC test results and date-code traceability.

    Packaging choices are more than a formality—they are a safeguard. We ship in moisture-impermeable, chemical-resistant containers, designed to snap shut and survive rough handling. Labels go beyond legal minimums, including QR codes for quick access to technical and safety documentation. Over the years, we have adjusted pack sizes based on user feedback—smaller packs for specialty ink shops, bulk sacks for industrial dyehouses. Returned drums are carefully inspected, and any suspect batch is automatically isolated and retested before it makes its way back into our outbound pipeline.

    Service and Support: Knowledge in Action

    Our technical service doesn’t switch off after the sale. If customers encounter splotching issues in automated dosing, our line engineers often visit the site, watching machine operation and checking environmental factors—humidity, dissolved solids in local water, or interaction with specific fabric chemistries. Over the years, this has meant investing in remote diagnostic tools, even real-time video support if needed. Rather than just filling out digital forms, we document both successes and failures, bringing these insights back into our daily operations meetings.

    Training extends outwards: we organize on-site sessions for staff who work with our violet and related basic dyes. Real skill comes from understanding not just how to mix or handle the dye, but why temperature, agitation, and pH control matter for results. Customers who take part in this kind of training end up with better product yield, fewer rejects, and a stronger relationship with us—not just as vendors, but as partners in consistent, reliable production.

    Improvement and Innovation: Preparing for the Next Generation

    Looking ahead, every manufacturer faces calls to reduce environmental impact and move toward more sustainable materials. We’re investing in research aimed at cleaner synthesis, alternative feedstocks, and processes with minimized waste generation. Innovations such as solvent recovery and low-residue catalyst systems have already reduced chemical consumption and effluent loads in our main plant. The challenge will remain: keep the product as vibrant, strong, and reliable without slipping on regulatory or safety expectations.

    Customers, regulators, and our own workers demand not just high performance, but a better story about how these chemicals are made and handled. As regulations evolve—sometimes faster than the science behind them—we keep our staff trained and engaged in industry roundtables. Through ongoing research partnerships with academic labs, we test next-generation intermediates and greener oxidation systems, aiming for the same color power, but with less environmental risk. This commitment runs through every shift, from morning cleaning routines to end-of-day final checks in the dispatch bay.

    Summary: Commitment to Consistency and Progress

    Every kilogram of Basic Violet 2 we send off carries more than a receipt—it carries decades of know-how, trial and error, process improvements, and a willingness to be transparent about both product quality and company practices. Those who rely on this dye expect strong, repeatable performance, clear and vibrant color, and a safety record built on rigorous controls. We don’t view this as just another commodity, but as the outcome of honest work and a continual push to do better—delivering a product that stands out both in appearance and reliability, batch after batch, year after year.