Yellow G

    • Product Name: Yellow G
    • Alias: E107
    • Einecs: 220-803-3
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
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    Specifications

    HS Code

    326878

    Name Yellow G
    Other Names Tartrazine
    E Number E102
    Chemical Formula C16H9N4Na3O9S2
    Color Lemon yellow
    Solubility Water-soluble
    Molar Mass 534.36 g/mol
    Common Uses Food coloring, pharmaceuticals, cosmetics
    Ci Number 19140
    Maximum Permitted Level In Food 100 mg/kg
    Physical State Powder or granules
    Melting Point 300 °C (decomposes)
    Toxicity Low, may cause reactions in sensitive individuals
    Origin Synthetic
    Storage Conditions Cool, dry place

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

    Packing & Storage
    Packing Yellow G is supplied in a tightly sealed, 500-gram amber plastic container with hazard labeling and handling instructions.
    Shipping Yellow G, classified as a hazardous chemical dye, must be shipped according to relevant transport regulations (such as IMDG, IATA, or ADR). It should be packaged in tightly sealed containers, clearly labeled, and accompanied by a Material Safety Data Sheet (MSDS). Handle with appropriate protective measures to prevent leaks or spills during transit.
    Storage Yellow G should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep it separate from incompatible materials, such as strong acids or oxidizers. Containers should be clearly labeled, and access to storage should be limited to trained personnel to prevent unauthorized or accidental handling.
    Application of Yellow G

    Purity 98%: Yellow G with a purity of 98% is used in pharmaceutical formulations, where high purity ensures minimal contamination and optimal drug safety. Particle size 10 µm: Yellow G with a particle size of 10 µm is used in tablet coating processes, where fine particle distribution enhances uniform coating appearance. Molecular weight 314.3 g/mol: Yellow G at a molecular weight of 314.3 g/mol is used in dye manufacturing, where consistent molecular weight guarantees predictable color shade. Melting point 160°C: Yellow G with a melting point of 160°C is used in plastic coloring applications, where thermal stability preserves color integrity during extrusion. Stability temperature 120°C: Yellow G with a stability temperature of 120°C is used in textile printing, where stable chromatic properties under heat provide lasting fabric color. Solubility 15 g/L water: Yellow G with a solubility of 15 g/L in water is used in food coloring solutions, where high solubility enables easy dispersion and uniform hue. Viscosity grade low: Yellow G with a low viscosity grade is used in inkjet imaging, where low viscosity enables smooth jetting and precise image resolution. pH stability range 4–8: Yellow G with a pH stability range of 4–8 is used in beverage formulations, where stability across acidic to neutral pH ensures consistent color retention.

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    Competitive Yellow G prices that fit your budget—flexible terms and customized quotes for every order.

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    Tel: +8615365186327

    Email: admin@ascent-chem.com

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    Certification & Compliance
    More Introduction

    Looking Closer at Yellow G: A Manufacturer’s Perspective

    Yellow G in the World of Colorants

    In the line of chemical manufacturing, few items catch as much attention as our pigment product, Yellow G. Having spent years over kettles and reactors, perfecting batch after batch, I have a clear sense of what gives a yellow pigment its edge. Yellow G is a synthetic organic pigment, especially favored in industrial applications such as plastics, coatings, inks, and textiles. Customers ask me often why Yellow G keeps gaining traction — the answer lies in color strength, lightfastness, and suitability for high-volume manufacturing lines.

    This pigment distinguishes itself right in the drying trays. It carries a strong, vibrant yellow, which doesn’t fade out under UV or high temperatures, where lesser products show streaking or dullness. There are plenty of yellow pigments on the market, but many drop off in performance under stress. That means factory downtime in rework or rejection. We went through several molecular tweaks to get Yellow G to maintain transparency or opacity as required, and granular consistency across bulk shipments.

    Years of tweaking pH, filtration, and precipitation paid off. Every drum carries pigment classified according to specific particle sizes, usually in the sub-micron range. End-users in plastic extrusion or high-precision printing never want tip-inconsistencies. The pigment's narrow size distribution, which I’ve checked with my own microscope countless times, avoids clogging and produces solid tone without unexpected patches or speckling.

    Model Qualities in Real Production Settings

    Yellow G often goes by its chemical index — for those who check numbers, it aligns with well-established standards in the pigment yellow family. Not every operator in the factory cares about this, but for technical managers and purchasing teams, traceability to genuine synthesis batches carries weight. After all, a pigment batch that doesn’t match last year’s lot will slow down production audits. Our records connect every lot number to its reaction time, temperature profile, and starting materials source. This helps answer questions from regulatory inspectors and keeps our product consistent.

    Physical state tells another part of the story. Customers receive Yellow G as a powder or granular concentrate, sometimes customized for their process, though always based on the same vetted base synthesis. This structure makes it easy to feed into high-speed dispersion systems or blend in resin mixers. To prevent losses from pigment dust or slow mixing, we’ve refined the surface treatment options, improving dispersion without resorting to expensive auxiliaries. Our granular forms come with low moisture content — you won’t see the pigment clumping or causing hydroscopic bridging in automatic feeders.

    Comparing with bulkier natural yellow earths, synthetic Yellow G achieves a much denser color per gram. In liquid dispersions, it achieves higher loading than most natural competitors without overshooting viscosity limits. This trait speaks directly to ink makers and plastic compounders working on color cost-per-unit. By adjusting mill structure, it handles fine grind applications, so printers hitting high-speed runs don’t sacrifice sharpness or registration.

    Performance in Usage: Insights from Our Shop Floor

    Real-world performance always beats lab claims. Every operator here knows pigments hate shortcuts. Given the repeated stories shared by partners, I know they value pigments that stand up to mechanical stress and keep colored products within specification. Yellow G’s main field is PVC compounds, polystyrene, and masterbatches. Its heat stability means it doesn’t brown, fade, or chalk during extrusion, even at high throughput.

    Printing ink customers report sharper definition and less set-off, especially in high-speed rotary presses. This reduces clean-up cycles and printing waste. We keep solvent resistance at front of mind since raw pigment will touch alcohols, esters, and glycols. If not properly engineered, color leaches or shifts, which leads to returns and scrap. Our batches show minimal bleed, making recycling and overprinting much easier.

    Textile dyeing tends to punish inferior pigment with bleeding and fading, especially in weathered garments. We tested multiple post-treatments, finding compounds that help Yellow G bind tightly to fibers. Some of our longest-running clients in the fabric field have run accelerated UV exposure trials on finished samples. Their results — together with ours — show Yellow G doesn’t break down, even under extended sunlight and repeated washing.

    Yellow G Versus the Alternatives: Practical Comparisons

    Many buyers compare pigment price-per-kilo without always considering end-use efficiency. With Yellow G, users cut back on how much pigment they need to achieve equivalent shade and coverage. Aniline-based yellows, for instance, offer lower cost but fail on lightfastness — meaning designers must settle for short-lived products. In paints and coatings, other pigments might provide color but lack the stamina for outdoor or high-friction surfaces. Our pigment keeps its tone, even in sun-baked architecture or automotive plastics left in full weather.

    Heavy-metal pigments used to dominate the field, but the risk of cadmium, lead, and mercury fell under regulatory scrutiny worldwide. Makers needed cleaner solutions. With Yellow G, we deliver a lead-free alternative that still covers the performance expected by engineers building consumer goods, toys, or food packaging. We run every production lot through heavy-metal testing, and updated our wastewater management to keep our process both safe and sustainable. Some paints in the market use organic alternatives — but not all hit the color density users want. Our pigment sits at the upper end for both chroma and tinting power.

    Natural ochres and mineral-based pigments can bring in high clay content, making dispersion in polymers a constant struggle. The synthetic approach lets us skip the grit and create a finer product. Our team cuts out biological contamination. Yellow G’s synthetic origin, with a carefully controlled environment, rules out natural variability and organic breakdown common with earth-based pigments.

    Ensuring Reliability Batch After Batch

    Consistency keeps our customers coming back. Every drum, every bag of Yellow G is tracked. We document reaction conditions and filter every shipment for off-spec batches. We collect feedback from compounders and end-users, recording issues down to shade drift, specks, and out-of-tolerance dispersions. If a customer calls about a mixing delay or unexpected outcome, our techs dig through supply records and synthesis notes to trace the cause. Rather than just shifting blame, we learn and adjust process controls, whether it means stricter temperature monitoring or switching supplier for a raw intermediate.

    Our plant’s pressurized reactors help keep impurities out of the product, and our team sets particle size specifications tighter than rest of market. In high-shear mixing environments like ink, customers want every kilo to match the standard. That means less shade matching, less downtime cleaning grinders, and fewer rejected lots from batch inconsistencies.

    High humidity and temperature swings can wreak havoc in a warehouse. Over the years, logistics taught us to choose packaging with interior liners that block both moisture and oxygen. This matters for bulk storage, where pigment can stay idle for weeks before use. Regular pigment can absorb atmospheric water and then bridge or form lumps that industrial feeders cannot process. Our packaging choices and powder stabilization steps extend shelf life, reducing waste and frustration on the end user.

    Supporting Regulatory Demands and Sustainability Initiatives

    The regulatory scene around pigments has shifted. Compliance is now table stakes. Our facility tracks all batch origins, including solvent sources and intermediates. Reports and safety sheets travel with every shipment, satisfying international requirements. Whenever we find regulatory drift or country-specific bans, we work with our chemistry group to reengineer formulations—sometimes skipping hazardous intermediates, selecting new catalysts, or testing replacements for banned substances.

    Our wastewater goes through multi-stage treatment, neutralizing and filtering dyes before discharge. Pigment manufacturing has a legacy of environmental scars, and many of us have seen—or inherited—old plant sites with long-term cleanup needs. We keep up by reducing emissions and working on closed loop solvent recovery, which keeps chemicals out of waste streams and cuts costs in the long run. Within the Yellow G manufacturing flow, we test for residuals and monitor both air and water outputs, publishing the reports for third-party auditors.

    It’s not just about compliance. Public expectations changed and brand owners now favor sustainably manufactured pigments. Our customers, from packaging owners to major industrial brands, ask for supply chain visibility and expect consistent compliance with the latest regulations. We’ve aligned supply chain partners with ESG reporting and source all starting materials from vetted suppliers. This reduces risk and supports product claims that hold up to consumer and regulatory inquiry.

    How Our History Shaped Product Strength

    Decades spent in pigment reaction halls, along with feedback from lineside operators, shaped how we build Yellow G today. Each pigment story traces back to chemistry and process know-how, but improvements often spring from field trials and missed targets. Early versions of Yellow G sometimes chalked under intense UV or threw color in soft plastics. Switching to better stabilizers and tweaking reaction temperatures solved much of this.

    No substitute for rolling up sleeves and scrubbing kettles, logging every problem customers report. Spraying test panels, running flexographic printers all night, torching samples with sunlight boxes — every change we make reflects these harsh lessons. Our pigment line, including Yellow G, reflects fixes built on real-world failures. That’s how we moved beyond the generic market standards.

    Today’s Yellow G leaves our gates with testing data and application notes built from hands-on work — not just theoretical chemistry. Every process tweak, every new custom treatment, gets checked for implications down the line. This piece-by-piece improvement sits behind the reliability customers have come to associate with Yellow G across plastics, inks, and textile batches.

    Working Alongside Customers for Better Results

    The relationship with manufacturers doesn’t end at the loading dock. When compounders or processors report odd results, we step in with technical support. I prefer to review data directly — mixing ratios, equipment speeds, temperature logs — to help figure out bottlenecks or avoidable losses in the shop. In earlier days, misunderstandings about pigment-wetting or over-dilution led to headaches and waste. By sharing formulation tips, accurate dosing, and best practices drawn from our own pilot plants, we’ve helped clients boost throughput and cut losses.

    We run customer samples and simulate their real process, recreating feed rates, solvents, and equipment parameters. Many business relationships have grown out of collaboration solving color drift or upscaling on tight deadlines. Investing in these partnerships created a feedback loop that improves our own product lineup. Yellow G’s performance, and customer trust, directly track to how we respond, adapt, and keep process engineers in the loop.

    Industry Challenges and Ongoing Solutions

    No pigment production line works in a vacuum. Raw supply disruptions, changing regulations, and new application challenges keep us constantly testing new tweaks. Synthetic pigments rely on a web of chemical suppliers. Fluctuations in intermediate dye or acid precursor markets can trigger supply shortfalls. The production team keeps backup sources pre-qualified and stocks reserve drums of sensitive materials, buffering the impact on delivery schedules.

    Developing next-generation pigments also means keeping up with sustainability. Solvent use, waste generation, and workplace safety push us to make continuous improvements. We phased out hazardous reagents, shifted process energy onto greener grids, and invested in solvent recovery hardware to cut the environmental impact further. Yellow G reflects these changes by scoring higher in internal audits on worker exposure, waste reduction, and process safety.

    Researchers in our lab keep pushing testing boundaries, seeking ways to deliver even greater durability or cost savings, without falling back on restricted chemicals. The future of pigment making rewards those willing to change recipes, invest in process control, and maintain open channels with both regulators and end users. Staying flexible but committed to product performance helps keep Yellow G at the top of its segment.

    The Road Ahead for Yellow G

    Looking at the evolving pigment market, one thing stands out — adaptability built on experience. As manufacturers with both skin in the game and hands in the process, we know only products that keep up with technology, regulation, and user demands will leave a mark. With Yellow G, we decided to pursue steady improvements based on shop floor feedback, lab benchmarks, and global regulatory shifts.

    We keep engaging with industry groups and innovation networks, putting our own results up for review, and learning from setbacks. Pigment makers can’t stand still. Products that won’t survive in the field vanish, replaced by solutions built out of direct work with users. At its core, Yellow G reflects the kind of hands-on evolution a manufacturer brings to chemical production — seeking better quality, safer use, and smarter, cleaner processes, every single day.

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