|
HS Code |
312345 |
| Product Name | Chrome Brown |
| Chemical Formula | Fe2O3·Cr2O3 |
| Color | Brown |
| Appearance | Powder |
| Density | 4.9-5.1 g/cm³ |
| Melting Point | Variable, above 2000°C |
| Solubility In Water | Insoluble |
| Main Use | Pigment in ceramics and glass |
| Lightfastness | Excellent |
| Toxicity | Low (take standard precautions with dust) |
| Refractive Index | 2.5-2.6 |
| Stability | High under normal conditions |
As an accredited Chrome Brown factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Chrome Brown is packaged in a sturdy, sealed 500g plastic container with a secure lid, labelled with hazard and handling information. |
| Shipping | **Shipping for Chrome Brown:** Chrome Brown should be transported in tightly sealed containers, clearly labeled, and protected from moisture and physical damage. Ensure compliance with relevant local and international regulations. Store and ship in a cool, dry, and well-ventilated area, away from incompatible substances. Handle with appropriate personal protective equipment to prevent accidental exposure. |
| Storage | Chrome Brown should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area. Keep the storage space away from incompatible substances such as strong acids and reducing agents. Ensure that the storage location is clearly labeled and protected from moisture and direct sunlight. Keep out of reach of unauthorized personnel and handle according to standard chemical safety protocols. |
Competitive Chrome Brown 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 admin@sinochem-nanjing.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: admin@sinochem-nanjing.com
Flexible payment, competitive price, premium service - Inquire now!
We have been producing chrome-based pigments for decades, and in that time, our Chrome Brown has earned a reputation among ceramics, glass, and enamel specialists for its tough consistency and color stability. Our most widely used grade runs under the model designation Chrome Brown YR02, which stands as the culmination of years of experience with oxidation roasting and controlled blending. Chrome Brown offers a deep, warm brown that covers the red to yellow-brown spectrum, and its opacity doesn’t fade in the firing or melting process the way certain organic or iron-based brown pigments do.
Experience has shaped every step of our manufacturing, from precise control of raw chromium and iron content to the tightly regulated calcination temperatures that fix color. The ratio and particle size range we maintain give this pigment outstanding performance. Chrome Brown becomes an integral part of the final matrix, whether it's applied in glaze formulations or melted into glass. Unlike synthetic organic brown dyes, which often lose strength or shift hue under heat, the color you see coming out of the kiln matches the color on your formulation table. Iron oxide pigments might offer some stability at moderate temperatures, but with Chrome Brown, glassmakers and ceramicists working at over 1250°C consistently report the same brown hue without leaching, fading, or unexpected chemistry.
From grinding raw chromium and iron oxides in precise ratios, through controlled calcination in rotary kilns, each step draws on our commitment to consistent, industrial-scale pigment quality. Our staff checks each lot with spectrophotometry and microscope inspection, and only batches that meet those internal standards for color depth and lack of contaminants pass into final packaging. Years of in-house testing have confirmed the YR02 model maintains L*a*b* colorimetry values in brown shades ideal for technical ceramics—still earthy, never muddy or greenish.
Ceramic tile producers rely on Chrome Brown to produce earthy tones in both matte and glossy glazes. It holds up under heavy flux loads and repeated firings. Pottery glaze artists favor it for its forgiving application window—small changes in firing atmosphere have minimal impact on final results. In sanitaryware, it provides subtle ochre or brown hues without unpredictability.
Glassworks value Chrome Brown for its ability to color mass glass batches without altering viscosity or introducing streaks. Because the pigment melts uniformly with the base glass, it avoids the clumping and uneven color spots common when using standard iron-based pigments. Decorative artists working with stained glass or pressed ware can trust that each pane will be consistent batch after batch.
Enameling workshops use Chrome Brown to achieve vintage russet, tan, or deep caramel finishes on metals. After thousands of cycles in our own pilot lines, we know this pigment does not leach or degrade—critical for final products that must pass long-term stability and weathering tests.
We have supplied Chrome Brown directly into large-volume production facilities, small-batch pottery studios, and research labs. Feedback shows that the pigment disperses evenly with common ceramic mixing media. Extended runs of glazed tile over several years always return the same batch-to-batch color values. In glassmaking, particle sizes remain fine enough to prevent haze, allowing clear and translucent brown options. Customers making cable insulators and laboratory ware also report complete color integration, both in transparent and opaque glass.
Raw powder’s shelf life in sealed drums exceeds five years under normal storage. Once mixed in glazes or glasses, Chrome Brown retains integrity during high-shear blending, long fire cycles, and chemical attack from boron and sodium. We have handled technical assistance for clients trying to shift to lead-free or low-cadmium systems; Chrome Brown has fit right into these new, safer systems, as its chromium exists in insoluble oxide and does not contribute to regulatory thresholds for leaching.
Traditional brown tones in ceramics and glass once relied heavily on naturally sourced iron oxide, manganese, or umber. These materials often come with inherent variability based on mining source, and even after refinement, their color properties remain inconsistent. In comparison, our Chrome Brown uses synthetic production, granting strict control over every property: tone, particle size, undertone, and purity.
Compared to iron oxide brown, Chrome Brown provides a deeper tinting strength and a neutrality that avoids drifting toward yellow or red after repeated firings. Manganese browns can give an attractive purple-brown, but they also introduce toxicity and can disrupt the acid resistance of finished ware. Our pigment’s inert chemical structure avoids this problem and complies with strict food safety and environmental standards.
Organic pigments, even high-end synthetic browns, can offer bright clean color initially but often decompose in high-temperature or oxidative environments. This makes them poor choices for anything destined for atmosphere kilns or standard culinary ceramics. In contrast, Chrome Brown handles firing temperatures well beyond what typical organic or iron pigment mixtures can tolerate, maintaining full colorfastness at up to 1300°C. Our own long-term exposure studies—conducted in both oxidizing and reducing kilns—have borne out this difference every time.
Our customers in the high-precision glass fields often emphasize how Chrome Brown achieves stable lightfastness even after years of sunlight and UV exposure. As compared to certain vanadium-based browns, Chrome Brown is free of the green or gray overtones that can affect glass clarity. This property proves critical for products like stained glass panels and architectural features.
Our production method submits every batch to a roasting stage under strict temperature profiles. By fine-tuning both time and temperature, we achieve the crystal structure that locks in color. Repeated sampling tracks both color tone and iron oxidation state, ensuring each lot lands within our modulation range. Our operators, with years in pigment manufacture, know how to detect off-spec batches before they reach the customer.
We never rely on third-party contractors. All production, from raw mineral selection through finishing and bagging, takes place under our own roof. This means a ceramicist in Italy or a glassworks in the United States can trace every drum of Chrome Brown back to its mineral origins and roasting record—an important step for companies that regularly face audits and regulatory inspections.
Particle size distribution often governs end-use performance in glazes and glass melts. Chrome Brown comes milled to a D90 below 7 microns, confirmed on laser diffraction instruments. This ensures rapid dispersion with minimal mixing and prevents grit or specking in fine-processed glazes. High-shear mixing lines and spray-drying units have shown no settling or color banding across multiple production runs.
Modern pigment buyers demand not just color intensity but documented safety. Our Chrome Brown composition passes independent leach testing for both US and European food contact regulations. Both chromium and iron exist as oxides in their most stable forms. These don’t dissolve out of finished ceramics or glassware even when in contact with acids or alkalis. No traces of lead or cadmium—hazards sometimes found in older formulations—appear in our assay data. We keep full ingredient transparency for every batch manufactured.
Recent tightening of heavy metal controls in tableware and architectural glass has turned attention to legacy pigment stocks. Our Chrome Brown matches under new directive requirements, providing an option in production environments where regulatory paperwork can delay the launch of new product lines. All required pigment safety data and origin tracking come directly from our production records—not third parties.
Some customers start with lab-scale R&D, evaluating Chrome Brown in beakers or small glaze trials. Once that first batch succeeds, our direct support follows through scale-up: adjusting mill settings, recommending blending windows, or helping to modify firing schedules. In more than twenty years of pigment supply, we have helped customers across five continents transition from experimental batches to continuous-line mass production. The feedback from these years shapes our process today.
Where production faces contamination risk, such as in sanitaryware kilns, Chrome Brown responds with minimal dustiness and a high bulk density for consistent dosing via automatic feeders. Our support doesn’t end after shipment. Teams can rely on swift technical answers straight from plant engineers and chemists. There’s no waiting for brokerage communication or distributor guesswork.
As environmental controls tighten, our operations have changed along with the times. We have upgraded our roasting lines and vent capture systems, using closed-loop heat recovery to cut fuel use. At the same time, all process water runs through on-site filtration and recycling, lowering discharge and reducing the energy footprint per batch produced. Raw minerals get sourced from suppliers that follow both local and international environmental standards, with regular audit checks on every delivery. None of these requirements get added on as afterthoughts—they have become central to how we make pigments.
Across the last decade, we have also worked closely with regional environmental authorities to reduce dust and fugitive emissions. Chrome Brown production lines now feature bagging and container-filling robots paired with HEPA air filtration. Reduced exposure not only keeps workers safe but also limits environmental impact at shipping and loading facilities. The stability of our product ensures that no loose powders migrate into warehouse or factory air, helping our clients as well.
Feedback from clients in increasingly regulated territories led us to invest further in compliance verification. Every grade of Chrome Brown comes with detailed traceability and documentation—covering everything from mineral provenance to quality control signatures. Our belief is that customers should never be left in the dark about what goes into their final ceramic or glass product.
No pigment line remains static. Our staff visits glassworks or tile factories onsite when formulation changes or new color effects create obstacles. Whether the issue lies in unexpected interaction with new glaze fluxes, or in adjusting to changes in local kiln atmosphere, our technicians work side by side with production chemists to solve real-world bottlenecks. Over the years, this partnership-based strategy has saved clients countless hours in both troubleshooting and new product launches.
Upgrading to new process equipment sometimes exposes hidden challenges with pigment distribution or kiln throughput. We help plants fine-tune their dosing systems, mill settings, and glaze application lines to fully capitalize on Chrome Brown’s compatibility with modern, high-throughput workflows. Continuous feedback from both our staff and customers keeps the production protocol fine-tuned to current industry needs.
Laboratories running performance benchmarking get full access to our in-house archive of parallel glaze and glass tests, giving them a leg up during initial trials. When market trends shift—such as increased demand for lead-free or more vibrant matte browns—Chrome Brown adapts thanks to these regular technical exchanges. We do not engineer pigments in isolation; rather, continuous evolution matches the blending and firing conditions our clients actually face.
New pigment formulations take time and years of on-the-ground industry experience. We invest those years into building production lines that offer more than just raw chemical supply. Every batch of Chrome Brown incorporates lessons learned from hundreds of collaborative projects with companies ranging from small, family-run ceramics studios to major industrial tile and glass producers.
Consistency, regulatory compliance, and color accuracy do not arise by chance. They grow from the daily commitment of chemists, production operators, and logistic staff who know their product from ore stockpile through to final drum. By keeping all site operations in-house, by investing in cleaner, more efficient processes, and by working directly with each customer, we make certain that Chrome Brown continues meeting the evolving needs of today’s and tomorrow’s glass and ceramics industries.
Choosing Chrome Brown directly from our manufacturing line means gaining access to decades of technical skill in pigment chemistry, production, regulatory compliance, and collaborative support. Our track record with this product comes from careful, detail-oriented production and an open dialogue with glassworks, ceramists, and industrial clients. Through developing Chrome Brown and evolving with stricter standards and broader applications, we have grown alongside the industries we supply.
Whether the project aims to create delicate stained glass, durable sanitaryware, or architecturally significant tile, Chrome Brown’s roots in rigorous manufacturing, long-term reliability in color, and regulatory adherence offer a solution shaped not just by formulas, but by hands-on expertise.