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HS Code |
933801 |
| Product Name | Dark Chrome Yellow |
| Color Index Pigment | PY34 |
| Alternative Names | Chrome Yellow Deep, Chrome Yellow Dark |
| Chemical Formula | PbCrO4 |
| Appearance | Deep yellow to orange powder |
| Molar Mass | 323.2 g/mol |
| Density | 6.12 g/cm³ |
| Lightfastness | Good |
| Toxicity | Highly toxic (contains lead and chromium) |
| Solubility In Water | Insoluble |
| Primary Uses | Pigment in paints, coatings, and plastics |
| Stability | Stable under normal conditions |
| Hazard Statements | May cause cancer, toxic if inhaled or swallowed |
| Cas Number | 1344-37-2 |
As an accredited Dark Chrome Yellow factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Dark Chrome Yellow is packaged in a sealed 500g plastic container, featuring hazard symbols, bold labeling, and secure screw-top lid. |
| Shipping | Dark Chrome Yellow should be shipped in tightly sealed, clearly labeled containers, compliant with hazardous material regulations. It must be stored away from incompatible substances, in a cool, dry, and well-ventilated place. Proper protective measures, including labeling and documentation, are required to ensure safe handling and transportation per regulatory guidelines. |
| Storage | Dark Chrome Yellow should be stored in a tightly sealed container in a cool, dry, well-ventilated area, away from sources of ignition and incompatible materials such as acids, bases, and reducing agents. Avoid exposure to sunlight or moisture. Use spark-proof tools and explosion-proof equipment where applicable. Clearly label storage containers and restrict access to authorized personnel only due to its toxic and hazardous nature. |
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Purity 98%: Dark Chrome Yellow with 98% purity is used in architectural coatings, where high color strength and durability are required for long-lasting facade finishes. Particle size 0.5 μm: Dark Chrome Yellow with 0.5 μm particle size is used in automotive paints, where uniform dispersion provides superior gloss and smooth surface appearance. Heat stability 220°C: Dark Chrome Yellow with heat stability up to 220°C is used in plastic masterbatches, where resistance to color fading under thermal processing is essential. Oil absorption 23 g/100g: Dark Chrome Yellow with oil absorption of 23 g/100g is used in offset inks, where optimal rheology and vivid print quality are maintained. Lightfastness Grade 7: Dark Chrome Yellow with lightfastness grade 7 is used in outdoor signage, where consistent coloration under prolonged UV exposure is achieved. Moisture content <1%: Dark Chrome Yellow with less than 1% moisture content is used in industrial powder coatings, where reduced agglomeration and improved flow characteristics are beneficial. Residue on sieve 0.01%: Dark Chrome Yellow with residue on sieve at 0.01% is used in ceramic glazes, where fine particle dispersion yields even coloration and smooth glaze finish. pH value 6.5: Dark Chrome Yellow with a pH value of 6.5 is used in high-quality artists’ paints, where color stability and compatibility with binder systems are ensured. Solvent resistance: Dark Chrome Yellow exhibiting solvent resistance is used in packaging inks, where migration and bleed are minimized during flexographic printing. Specific gravity 5.6: Dark Chrome Yellow with specific gravity 5.6 is used in coil coatings, where optimum pigment loading and uniform application are critical for process efficiency. |
Competitive Dark Chrome Yellow prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
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Tel: +8615365186327
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Manufacturing pigments is nothing new for us, but every product demands attention to its unique traits. Dark Chrome Yellow stands apart in the landscape of inorganic pigments, both due to its performance in final applications and the challenges you see during production. Unlike its lighter analogs, this pigment delivers a deeper, more intense shade—a saturated yellow that borders on orange, giving paints or plastics a richness you simply don't get with ordinary yellows.
We produce our Dark Chrome Yellow to strict, consistent specifications: high chroma, outstanding hiding power, and reliable chemical stability throughout demanding processes. Our most popular grade, PX-1, features a particle size engineered for the best compromise between tinting strength and dispersibility. Color shade and opacity hold steady over long runs, regardless of the scale—because we use only refined raw materials, precise controls, and a repeatable method that's grown out of decades spent correcting color shifts and lot variations.
In the coatings sector, especially for industrial and warning paints, there’s still no substitute for Dark Chrome Yellow’s visual punch. Road markings, machinery, and exterior metalwork need to be seen. This pigment builds a visual signal: whether you pour it into traffic paint, adhesives for reflective signs, or machinery finishes, it keeps its brightness under daylight, rain, and pollution. We have watched paint customers tweak formulations across regions and climates, but the required depth of color—visible and unyielding—keeps them coming back to chrome yellow.
Plastics molding operations ask for heat stability. Our PX-1 Dark Chrome Yellow withstands standard extrusion, blow molding, and injection cycles without fading. The color stays true at temperatures that would break down cheaper organic alternatives. In vinyls, ABS, and polyethylene, the pigment gives a consistent yellow that won’t wash out or brown while processing.
Printing ink producers deal with solvents and binders that can dull or shift the shade. We’ve engineered our pigment’s surface so the particle stays wettable without agglomerating or separating out under agitation. Printers can block print or screen print on complex substrates—films, coated papers, synthetic textiles—and keep the color edge sharp. The pigment holds up even when exposed to commercial cleaning fluids, light, and repeated wear.
We see requests for certifications or compliance. Every batch of Dark Chrome Yellow meets the thresholds set for heavy metal content, thanks to ore selection and in-plant monitoring. No off-ratio chromium, lead, or sulfate beyond agreed industrial tolerance. Repeated independent analytical reports back us up—the figures show why end-users stick with a manufacturer, not a trader or blenders without traceability.
We have worked through the challenges of dusting, caking, and flow problems that used to slow down the industry. Our powder holds a soft bulk, pours well, and doesn’t clog hoppers under humid or hot storage. Bags arrive fresh, not a pressed cake. This means a line operator can empty product with minimal waste, improving productivity at scale.
On the production side, we always get asked to draw lines between Dark Chrome Yellow and its relatives, like Light Chrome Yellow or Lemon Chrome. Each one starts with lead chromate but the crystal phase, dopants, and blend ratios govern the visible result and operating range. Dark Chrome Yellow, especially our PX-1, leans into the reddish side due to increased chromium content and crystal engineering. Its color matches the banana skin tone or industrial safety tone required under global standards. Light versions suit interior use or textile dyeing, but depth suffers on metal, plastic, or thick barrier coatings. Our Dark Chrome Yellow rides high in screen tests for shade purity, driven by those microscopic tweaks made at the filter and calcination stages.
Titanium dioxide remains a big player for opacity and is often blended with yellows, but pure titanium doesn’t match the color. Organics, such as Diarylide yellow, strike a note for lighter, more fluorescent effects, but sheer resilience in the face of sunlight and alkali resistance favor the inorganic chrome yellow family. We still send out samples for composites—and while clients sometimes report better initial brilliance for a new organic pigment, after six months of outdoor exposure, Dark Chrome Yellow’s tenacity tells the story. It doesn't green out or collapse under alkaline cleaners, acids, or brake dust.
Every kilogram of our pigment goes through sieving, moisture test, pH evaluation, and shade check. Our QC lab stores color panels from past years, to give customers the confidence that a new shipment will fit right into their running process. Teams at large paint plants expect to drop in a batch and hit the right traffic yellow tone with minimal adjustment—faster time to market, less tinkering, less overrun.
Opacity comes not just from pigment loading, but also from particle shape and dispersibility. During the final wash and drying, our techs keep an eye for flocs or crystalline rifts that can kill brightness. Each pot or pan leans on this—too coarse, and you see speckles in the coat; too fine, and the color fades under the binder. We have found the sweet spot by stripping away anything over 5 microns and capturing the most reactive fraction.
No trade secret here—just years of grinding, burning, sieving, and retesting until operators no longer find surprise lumps or shifting tints in their batches. Our system catches early signs of lead leaching or chromium trace off of spec, because we measure at every stage and don’t leave final QC only to a batch end review. We keep older color standards on file so clients can compare—down to the 10th decimal—today's shipment to those they bought last season or even a decade ago.
Traffic paint formulators call on us for reliable yellow that matches internationally recognized visibility norms. The pigment doesn’t brown out near hot asphalt and endures the abrasion of passing tires and urban pollutants. Low quality substitutes often leave a greenish haze or begin fading under ultraviolet light; our Dark Chrome Yellow holds steady on roadways for years longer, keeping curbs, crosswalks, and lanes defined.
Toy manufacturers need to balance the pigment’s intensity with safety. We screen all outgoing product for leachable lead and chromium; several years ago a client flagged a failed batch and we worked through our trace controls, tightening our blend ratios and updating our process chain. No batch moves out now unless we’ve run both in-house and third-party sweeps. The end result: a lively, lasting color that holds up in molded plastic, foam, or rubber toys—meeting toy safety directives for metal content.
For art supplies, especially in oil and acrylic paints, artists look for specific lightfastness and consistency. Cheap pigments fade or suffer in blending; Dark Chrome Yellow takes on that mixing without turning muddy. We’ve supplied paint makers relying on repeatable shade reproduction for a generation. They need vibrant yellow for underpainting or highlights, and they need paints that age gracefully. Our pigment keeps its strength without caking in the tube or separating out—vital for anyone using it to create lasting art.
Regulation has grown stricter around heavy metals in pigments. Regions introduce new rules or reduce allowed ppm for certain elements. These changes affect both production and logistics. We’ve invested in closed-system handling, modern wet scrubbers, and waste minimization. Our system targets airborne dust, liquid discharge, and solid waste, keeping exposure well below recommended limits and ensuring every kilo is traceable. Years back, pigment dust used to float through loading bays; now we recuperate 99% of airborne particles. This improves worker health and surrounding community safety.
End-users worry about hazardous chemicals. This remains a fair concern. We track global regulations, and our support team provides up-to-date compliance documentation. For markets requiring extra screening—such as school supply makers or food-contact plastics—we offer a dialed-down version with modified crystallization to push extractables below regulated thresholds. We have not only kept up with the evolving landscape but led changes by working with labs to test and certify each product blend.
Some customers look to move completely away from lead chromate-based pigments. Still, many applications have yet to find a substitute with the same covering power, resistance to weathering, and cost-effectiveness in high-volume use. We stay engaged in research to cut out lead, but until alternatives match the real needs of street pavers, paint contractors, and industrial fabricators, the industry uses chrome yellow with clear protocols. Whenever possible, we help partners transition smoothly—sharing test results for new blends and optimizing processing for safer alternatives.
We can’t deny pigments like Dark Chrome Yellow come with real environmental baggage. The chrome and lead content—managed properly—doesn't create risk in finished products, but risks can arise during manufacturing and disposal. We built on this reality, installing effective effluent treatment and dust recovery to manage process remnants. Proactive site monitoring and yearly third-party audits act as guardrails, not PR spin.
Plant upgrades—such as closed filtrate lines, HEPA filtration in bagging, and improved stack scrubbing—reduce external exposure for workers and community. Wastes are stabilized before landfill, and we hand over disposal to licensed handlers who know how to deal with heavy-metal residue. We believe in rigorous benchmarking and keep clear records, not just to placate regulators, but to keep our promises to neighbors and customers alike.
It’s one thing to sell pigment; it’s another to see how customers use it and help them get the most out of every delivery. We regularly host users at our facility, troubleshooting color issues or viscosity problems in their lines. If your plant deals with batch settling, separation, or unexpected shade drifts, our technical support team can work right beside your staff, reviewing data and suggesting improvements.
We back this support with real analysis: rapid response on complaints, detailed incident logging, and weekly production reviews to pinpoint variation sources. Most color complaints link back to outside factors—water impurities, resin compatibility, or carrier solvents. We ran a study over five years and found that optimizing mill temperature and blend timing fixed 80% of customer-reported color issues. Our commitment to ongoing support shortens troubleshooting cycles for coating plants, plastic molders, and ink makers alike.
Research never stops. Our R&D group works both to refine production and to explore new pigments with lower environmental footprints. We’ve partnered with academic labs and materials scientists to push efficiency in coloring but keep an eye on economic and application realities. Recent advances in double-encapsulated particle technology give us some promising results—better resistance to acid rain, longer pigment life in harsh outdoor settings, and lower migratory tendencies when mixed with strong solvents.
Testing and color matching run as a continuous cycle. Every tweak or improvement ends up back in our master database of color references, ready to be tested at bench and pilot scale. Nobody here thinks the perfect pigment exists, but each cycle of feedback brings us closer—better shade, tighter tolerance, safer handling.
We stand by our track record. That comes from hard-earned experience—not marketing spin or templated guarantees. We source raw materials based on consistent chemical composition, qualifying each lot and batch for both bulk and trace impurities. Our process lines—sintering, precipitation, and milling—operate to strict internal SOPs. New shifts train alongside experienced operators, not just on paper, but on the shop floor, correcting problems before they grow into lost batches or off-spec product.
This hands-on know-how translates to fewer line breakdowns, higher batch yields, and color that fits the same chart year-round. If a truckload shipment goes astray or arrives shifted, our service teams track the order, analyze root cause, and ensure corrective action—not just a coupon or refund. The relationships we build aren't just transactional: pigment users stick with us for the long haul, because we stand in the factory trenches with them, troubleshooting and improving run after run.
Plastic extrusion companies have pushed our pigment in conditions hotter and faster than we ever imagined when we set up our lines years ago. Over the years, their feedback and our lab tests delivered a version that now rarely clogs screens or needles, improving their output per shift and reducing downtime. On the paint side, a contractor working on stadium seats documented fading from a traffic paint competitor after eighteen months—while ours held the match under full sun all season, no visible change. Learning from field results, we keep our focus on not just what pigment achieves on paper, but how it works under stress, weather, and exposure.
In the ink segment, a long-term partner described how they lost weeks of printing time with overseas-sourced product due to batch separation. After shifting to our pigment, line consistency and color matched their charts, and their defect rates fell by more than half. Only real-life use and feedback push manufacturing change. We value each report—both the glowing ones and the tough calls when something slips—because that’s how new procedures get written into our manual.
Dark Chrome Yellow continues to serve vital roles in paint, plastic, ink, and art. The lasting strength, deep shade, and chemical resilience make it irreplaceable for many industries. Users need color they can rely on through harsh environments, repeated wear, or stringent regulatory regimes. Smarter processes, careful sourcing, and steady customer support form the core of our offering—not only in pigments, but in all relationships.
For every kilogram we ship, we stand behind the product and the people who use it. Each batch represents not just a commodity, but an outcome of decades of persistence, learning, and improvement. We welcome questions, feedback, and challenge. If Dark Chrome Yellow belongs in your work, we are ready to deliver a pigment that respects your craft and your standards.