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HS Code |
340773 |
| Chemical Name | Acid Light Yellow G |
| Appearance | Yellow powder |
| Chemical Formula | C16H12N2Na2O7S2 |
| Molecular Weight | 474.38 g/mol |
| Solubility In Water | Soluble |
| Dye Class | Acid dye |
| Cas Number | 135-51-3 |
| Application | Textile dyeing (especially wool and silk) |
| Color Index | Acid Yellow 73 |
| Lightfastness | Moderate |
| Melting Point | Decomposes |
| Ph Range | 4-5 (optimal for dyeing) |
As an accredited Acid Light Yellow G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Light Yellow G is packed in a 25 kg woven plastic bag with inner polyethylene lining, labeled for chemical use. |
| Shipping | Acid Light Yellow G should be shipped in tightly sealed, corrosion-resistant containers, clearly labeled with hazard identification. Transport in compliance with local and international regulations for hazardous chemicals. Ensure protection from moisture, direct sunlight, and incompatible substances. Handle with appropriate safety measures, including spill containment and emergency procedures during transit. |
| Storage | Acid Light Yellow G 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. Protect it from moisture, heat, and direct sunlight. Ensure the storage area is equipped with appropriate spill containment and labeling, and restrict access to trained personnel to prevent accidental exposure. |
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Purity 98%: Acid Light Yellow G with purity 98% is used in wool dyeing processes, where it ensures vibrant and uniform yellow coloration. Molecular weight 465.39 g/mol: Acid Light Yellow G at molecular weight 465.39 g/mol is used in silk textile applications, where it provides high dye uptake and shade consistency. Solubility in water 50 g/L: Acid Light Yellow G with water solubility of 50 g/L is utilized in paper manufacturing, where it facilitates easy preparation of stable dye solutions. pH stability 2–6: Acid Light Yellow G with pH stability between 2 and 6 is employed in leather finishing, where it maintains colorfastness under acidic processing. Light fastness grade 4: Acid Light Yellow G with light fastness grade 4 is applied in nylon fiber dyeing, where it offers enhanced resistance to fading upon light exposure. Melting point 192°C: Acid Light Yellow G with a melting point of 192°C is used in industrial dye blends, where it ensures high-temperature processing compatibility. Particle size D50 <10 µm: Acid Light Yellow G with particle size D50 less than 10 µm is incorporated in ink formulations, where it produces smooth and uniform printed images. Stability temperature 80°C: Acid Light Yellow G stable up to 80°C is used in continuous dyeing machines, where it prevents thermal degradation of the dye solution. Purity 99%: Acid Light Yellow G at 99% purity is utilized in high-grade food packaging materials, where it guarantees compliance with strict purity standards and minimizes migration potential. Heat resistance up to 70°C: Acid Light Yellow G with heat resistance up to 70°C is used in cosmetic dye formulations, where it maintains color integrity during product storage. |
Competitive Acid Light Yellow G prices that fit your budget—flexible terms and customized quotes for every order.
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From my station at a chemical plant, flexing out tonnages and balancing reactor loads, I see firsthand how Acid Light Yellow G finds its way into the backbone of industrial processing. Markets ebb and flow, but colorants will never fall out of fashion. The textile and leather finishers knocking at our warehouse bays rely on this dye for one simple reason – it delivers a consistent yellow shade that unfolds smoothly across wool, silk, and select polyamide blends. The color’s vibrancy does not just dress up fabric; it speaks to decades of coating expertise, applying pigment without compromise on brightness or wash fastness. I walk the production lines daily, watching operators run exacting batches where the margin for error sits in milligrams. A tilting scale can throw off a run. Teams running direct dye additions know their results hang on lot-to-lot stability. Our Acid Light Yellow G answers that call without pause, batch after batch.
Across regional garment hubs, different dyers expect their colorant to arrive as a powder of fine, dry flow—not sticky residue, no caking at the bag’s bottom. Our process locks this dryness. The hum of filtration, careful drying, sieved out just right. Like any proud producer, I am quick to point out we do not chase volume at the expense of precision. Each batch retains clarity, a defined shade index, and no spectral drift outside industry norms. Specifications keep the light reflectance within a known corridor. Plant managers don’t lose time because failed lots never enter the market from our warehouse doors.
Where Acid Light Yellow G stands apart — not only the brightness or staying power — comes from purity and constancy. I’ve visited synth setups both new and old; only a manufacturer rooted in daily, hands-on process control can deliver reproducible shades. Customers notice the difference between a true light yellow and the muddy undertones trailing from less careful production. That clear, sunlit yellow carries value in finished goods, setting off prints and patterns without muddling the composition. Nobody needs a dye that ages badly or stains change after laundering.
The reliability story doesn’t come about by chance. Manufacturing on an industrial scale calls for solvent management, careful filtration, and temperature discipline while controlling sulfonation factors. When things go off-target — an operator shortcut, humidity spike, a vessel jacket out of tune — flaws show up right away in application tests: dyes with low tinctorial strength, specks, or impurities that come out in the washing. A manufacturer with direct hands on every step will notice, adjust, and never ship subpar goods.
In the actual working mills, dyers and finishers want less rework. As a maker, we get constant feedback from the dye house floor — how well it handles in liquor, does it wet out evenly, does it need pre-dissolving? Our Acid Light Yellow G offers a powder that dissolves quickly and runs clear in solution. Not every yellow acid dye does this. Solubility comes not just from formula but from exact particle size and a proprietary final drying cycle that keeps flowability high. No end user wants filters clogged with chalk, or streaked color on fabric. We see the savings downstream when production does not slow for filter changes or emergency stain corrections.
The technical edge of Acid Light Yellow G cannot be matched by generic or broad-class acid yellows found in some catalogs. Not all acid dyes remain stable through the spectrum of pH and temperature swings used in modern dyeing. Some fade, shift hues, or precipitate. By contrast, our product keeps its chromatic integrity in standard acid dye protocols and holds its shade in weakly acidic media. Even under higher temperatures, our quality system chases out byproducts that can cause shade drift or unwanted aftertones. This control, grounded in decades of plant troubleshooting, removes surprises from the color house.
In my years orchestrating production schedules, I’ve seen customers push for cheaper alternatives — blends mixed with fillers or rebranded intermediates – yet those products let them down under aggressive textile processing. Filler-heavy alternatives, whether domestic or imported, struggle with even dispersion leading to streaking, weak build-up on fibers, and higher waste. Our Acid Light Yellow G does not get diluted or reprocessed into hybrid lots. Purity is not just a claim but an operational reality. Testing beyond the standard color index, we drill down to trace metal analysis, residual starting material, and moisture. When we sign off a lot, it carries our guarantee of full-strength, high-purity source material.
Another talking point I relay to partners comes in compatibility. We’ve adapted our product to suit blend dyeing, letting craftspeople combine Acid Light Yellow G with selected acid reds or acid blues for custom hues without unpredictable mixing results. Years in the dyeing trenches, we know which competitors’ acid yellows shift in shade or break out when exposed to hard water or variation in heating cycles. Ours holds up under real-world process stress. Dyers chase both predictability and shade matching, not just cheapest cost per gram. Our hands-on, reactor-to-sack monitoring means nobody needs to worry about unannounced formula changes.
Differentiation emerges quickly in the fit for batch scale. Mass-market distributors often chase bulk sales in 20 or 25 kg bags without regard for end-user needs. Our team routinely ships custom volumes, whether drum or small sack, based on the plant’s consumption pattern, and we store product in controlled conditions to keep shelf life long. In this market, most failure stories link back to product that left the manufacturer, sat exposed in transit, or was repacked too many times. We stick with dedicated, purpose-packed containers to reduce risk of clumping or water uptake, easing the handling burden for mill staff.
For nearly every major acid dye application, Acid Light Yellow G finds a home. Textile dyers gravitate to it for its color consistency over long runs and its high build on wool and silk. Once, a partner mill was running a batch of fine merino but struggled with batch-to-batch differences from a competitor’s dye. After switching, their re-dye rate dropped, and returns almost vanished. Dry cleaners see less color transfer because our product’s fixation strength stands up to most gentle treatments.
Beyond classic textiles, leather finishers look for a dye without metallic afterglow or shifting color after repeated flex. We craft our powder with tightly controlled sulfonation, enhancing bonding to protein fibers while ensuring easy washout of trace residue that could weaken the final hide. Tanners tell us they appreciate the ability to build shades from pale pastel to bright yellow without added shading agents. The product’s repeatability means each hide, from calfskin to full-grain, takes up color smoothly.
In silk houses, the visual impact of a single shade speaks louder than any technical data sheet. Silk carries imperfections that less stable colors can amplify. Our Acid Light Yellow G goes on evenly, without pooling or splotches, and the finish boasts a clean hand feel. I’ve listened to finishers working with premium silks tell me that a stable, bright yellow differentiates their goods in finished garment lines – scarves, dress linings, suiting accents. They do not want off-notes or mixed undertones from low-quality blends.
Workers producing specialty papers, like crepe streamers and high-end packaging, need colorants with dependable fastness and solubility. They avoid products that rub off or bleed in humid climates. Our dye’s fine powder and quick solubility keep streams running, preventing production line halts and excess cleaning. This translates into fewer rejected lots and less downtime, an economic impact for every paper converter who values on-time shipment.
We identify Acid Light Yellow G by a fixed internal model system, not changing product codes or relabels every fiscal year. This approach traces each sack to a plant lot number and back through our quality logs. Our teams reference not just the color index (C.I. Acid Yellow 17, for those who track legacy naming) but verify specification based on dye content, moisture, and granulation. Dissolution tests take place on every outgoing batch; we do not take shortcuts, so our partners never get a surprise in the field. Real-world testing in wool and standard laundered swatches confirms that the quality matches the output the customer expects.
Specifications matter only so much as the working results. We keep the active dye content consistently high, running regular HPLC tests alongside visual shade analysis. The moisture sits within a tight range, enough to keep the product from floating airborne but not so high that caking risks creep upward. No batch leaves without direct sign-off from a shift manager, along with QC test slips confirming chromatic coordinates and shade index. If the batch does not fit the reflected light range and dye content, it does not ship. It is wasteful, but necessary to protect trust.
Repeatability does not demand cutting corners. We see too many operations buy cheaper acid yellows, with inter-batch variation requiring constant shade matching downstream. Bleeding resources through unnecessary corrections and wasting fabric runs damage more than revenue. Our integrated plant model sets us apart: the raw material warehouse stands within a truck’s roll of the synthesis line, which cuts transport exposure and minimizes risk of cross-contaminant pickup. Our filtration and drying rooms operate under tight environmental controls, which means less ingress of dust, stray fibers, or rogue odors. The differences run deep into process control, and that delivers a trust factor competitors rarely match.
I do not sit in an office far from the plant floor. Daily conversations with plant supervisors, packing staff, and shipment drivers give me direct feedback nobody else will report. Our logistics manager knows we pack our product in tightly sealed, double-lined bags that are tough enough to resist pinhole leaks and pallet jostling. The product arrives as it left: clean, flowing, and ready to feed into hoppers or dye vats.
Feedback rolls in from production teams across geographies: high-altitude mills with dry, cold air and coastal plants with salt in the breeze. We hear from both regions, and adjust storage guidelines as real-world testing reveals new needs. If a client mill finds the powder running a little slow in solution, our blend division can adjust drying and particle cut to suit. By handling manufacturing decisions in house, we have rapid response cycles, not waiting for a contract lab or distant outsourcing partner to feed us results. We own process control.
Documentation might not seem glamorous, but with every product leaving the gate, we attach application guidance based on the substrate, process method, and target shade. Customers new to acid dyes benefit from hands-on advice; seasoned users appreciate color repeatability most. In some cases, mills request direct on-site training, and we’ve sent field engineers to optimize liquor ratio, pH targets, or mixing sequences. Feedback from those sessions feeds back into our process tweaks at the plant.
Differences stand out under customer scrutiny. Once, a mill in the south struggled with yields. Instead of blaming plant conditions, we checked their process, sampled on-site, traced the rally point to a minor deviation in dye dissolution temperature. Fixing it improved their results overnight, and as a manufacturer, we keep those cases on file. It teaches us that being present and ready for after-sales adjustment garners more trust than dozens of certificates ever can.
In real dye houses, not every batch runs perfectly. Even the finest acid dye can fall short if the process veers outside spec – off-pH water, pressure shifts, pump surges. Some problems don’t start in the dye factory but in the user’s pipes. We address these risks in our user notes and technical calls, highlighting practical ways to test and adjust, rather than blaming product alone. If a lot runs with less build-up or more spotting, we offer analytical support and adjust next runs accordingly.
Mills often need tailored help during process scale-up. The jump from five-kilogram lab pots to full-batch kettles exposes flow inconsistencies, and an acid dye that appeared to dissolve perfectly in a flask might behave differently at plant scale. By working with actual plant operators, watching solution streams, we adjust grind, drying time, or packing technique to compensate for that difference. Process partnership — maker to mill — solves most technical issues faster than distant technical writers.
One complication arises with hard water supplies or recycled process water, which can cause acid dyes to precipitate or form shade oddities. Our support backlog covers real-world solutions — pre-treatment for water, dissolution boosters, stir speed adjustments — and we tweak product blend or drying sequence as needed. As manufacturers, we see more than chemical equations; experience teaches us to expect and address this variability.
Sometimes we hear about end-use safety or fastness concerns. We publish dye content, heavy metal testing, and a declaration of compliance with all known textile and leather regulations — nothing hidden behind technical lingo. Regular audits and in-house chromatography keep us honest. If standards change, we crosscheck formulas with regulatory and industry partners. This reliability means major buyers keep us on approved supplier lists through audit after audit.
A producer’s job doesn’t end when a bag leaves the plant dock. In keeping Acid Light Yellow G at the top of our range, we review process data constantly. Where shipments sit for a season, we follow up with users on condition, storage, and performance. Audit trails let us trace product back to the specific day and reactor. Colleagues throughout the sector know that only a genuine manufacturer can deliver this kind of process feedback loop.
Unlike generic acid dye brokers, we don’t just resell one-out-of-market shipment or bulk Chinese intermediates. Our name rides on every kilogram, every run. We believe in building loyalty not just by technical promise but by real-world, results-driven history. Each finished lot carries the collective pride of the engineers, operators, cleaners, and shippers who build our reputation through detailed attention, safe practices, and steadfast technical discipline.
Textile chemistry may look simple in a slide show – drop a powder in, swirl, observe color – but veteran practitioners know results are built on habit, deep knowledge, and trust earned every day at the bench. Those who depend on quality yellow dye count on tightly-held technical experience and routines passed down in the plant year after year. Acid Light Yellow G, for us, becomes more than just a colorant; it’s a reminder that every production challenge, every issue solved for a customer, pushes our craft forward.
All production runs in full visibility. Stakeholders upstream and down get regular summaries on sourcing, storage, and production trends. Employees benefit from training in safety and spill management, since mistakes on acid dyes teach lessons too late. We partner with trusted suppliers for raw materials, and keep an open QC bench for inspecting every input — no outliers tolerated.
Ethics forms the long game. Some markets chase price and nothing else, but our customers expect a story they can track, a “who made it” record to audit. We sign every test and shipment record. Traceability is not paperwork, but a practice. When a major mill’s audit digs into supply chain, we win business because we actually know not just which truck delivered our raw input, but the person who worked the batch on swing shift.
No dye line runs without waste or challenge, but continuous improvement defines the forward march. If a safer or more efficient process emerges, we test and belong to technical groups evaluating updates. Some acid yellow makers dilute their upgrades with secrecy; we favor open, practical exchange. In this way, Acid Light Yellow G remains not just current, but future-proof.
As a producer, seeing our yellow on a passed-down wool scarf or a silk celebration sash means more than a delivered ton. Families, jobbers, and small fabric traders stake daily bread on invisible quality decisions made at our plant. Responsibility travels from our gates to the retail shelf, in every shade that holds fast and each fabric that resists color breakdown. In classrooms, trade schools, and sweater workshops, we’ve led hands-on sessions training newcomers on practical dye chemistry. Community investment is not about press releases – it’s about hours logged at workbenches, clean runoff in our local river, steady employment for worker families, and technical support that does not end at a cold call.
I’ve stood with industry partners at trade shows, listening as brands and finishers demand specifics – traceability, reliability, and ethical practices. Acid Light Yellow G’s reputation opens doors because we back every batch with open books, real answers, and on-the-ground fixes, not just catalog claims or certificates. No product succeeds without honest partnership from factory to finish. Our approach, stubborn on quality, steady on price, and relentless on improvement, anchors why partners stick with us through changing seasons and economic turns.
Acid Light Yellow G speaks for itself only when the producer stands behind every lot, every customer solution, and every field fix. For the people behind the dye, every kilogram reflects untold stories of troubleshooting, craft, and pride. This product, shaped daily by our hands and those of our partners, is more than a spot on a shade card. It is the result of thousands of decisions, hard-earned advice, and an unwavering refusal to compromise on trust, transparency, or craft. Our doors remain open to every partner, and each new batch builds on the long arc of quality – one yellow at a time.