|
HS Code |
333896 |
| Product Name | Iron Chrome Brown |
| Chemical Formula | Fe2O3·Cr2O3 |
| Appearance | Brown powder |
| Color Index | Pigment Brown 29 |
| Cas Number | 12713-03-0 |
| Molecular Weight | 343.67 g/mol |
| Melting Point | Over 2000°C |
| Density | 5.2 g/cm³ |
| Lightfastness | Excellent |
| Oil Absorption | 15–25 g/100g |
As an accredited Iron Chrome Brown factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The Iron Chrome Brown chemical is packaged in a durable 25 kg woven polypropylene bag with clear labeling, safety symbols, and batch number. |
| Shipping | Iron Chrome Brown is typically shipped in tightly sealed, moisture-proof containers or bags to prevent contamination and moisture absorption. Appropriate hazard labeling and documentation must accompany the shipment. Store and transport the chemical in a cool, dry area, away from incompatible materials, following all applicable local and international transportation regulations. |
| Storage | Iron Chrome Brown should be stored in a cool, dry, well-ventilated area away from incompatible substances, such as strong acids. Keep the container tightly closed to prevent contamination and moisture absorption. Ensure appropriate labeling and store on shelves away from heat or direct sunlight. Use chemical-resistant containers and follow all relevant safety regulations to prevent accidental exposure or release. |
Competitive Iron Chrome Brown 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 sales3@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Iron Chrome Brown—often called C.I. Pigment Brown 29 or Iron Chromite Brown Spinel—holds a strong place in our production lineup. We have been synthesizing this pigment for years, and our factory operates continuous kilns and batch processes to tailor the pigment’s composition. What drives our approach is simple: the ceramics industry and other demanding sectors rely on every bag to deliver consistent color quality, and that demand for reliability pushes our team to maintain strict control at each stage.
We produce Iron Chrome Brown predominantly as Model PBR-29, which represents a balanced Cr, Fe, and Al oxide composition. Standard ceramic grade runs at an average particle size in the range of 2-4 microns, measured after our next-generation milling and screening steps. Finer grades serve in high-surface-gloss applications or where smoother dispersion matters, like for porcelain dielectrics.
Our operators know from day-to-day hands-on experience that even minor temperature fluctuations in the synthesis furnace can cause variations in shade and tint strength. We use real-time thermocouples and consistent raw material sourcing. None of this is guesswork. We’ve walked the ceramic factory floors ourselves, opened test furnaces, and seen how small pigmentation changes can shift a production run out of specification. Our laboratory does batch sampling from every ton and cross-checks the color index—this isn’t an abstract process; it’s a necessary guarantee for tiles, bricks, and glazes that will be fired at 1200°C or higher.
Iron Chrome Brown has earned its reputation for earthy, neutral to deep brown shades across a range of final products. We serve traditional ceramics, including roof tiles, floor tiles, and wall cladding, where long-term color holdout is essential under UV and high-temperature firing cycles. This pigment shows up reliably in technical ceramics too, like insulators, thanks to high chemical stability.
We see customers using our pigment to formulate clay bodies for rustic stoneware, exterior tiles, and decorative landscaping pieces. There’s a reason architects and end-users specify it—our Iron Chrome Brown persists through thermal shock and changing weather. We’ve tested slabs and tiles for years in outdoor trials; even after repeated freeze-thaw cycles, the color rarely shifts, and we back this up with batch history data.
Our team optimizes firing conditions for maximum pigment crystallinity. The spinel structure locks in the brown shade, which means tile manufacturers and frit producers can count on color stability across production lots. We steer clear from cheap substitutes or recycled metallics—many pigment failures in the field trace to inconsistent precursor oxides or process shortcuts. Our chemists communicate directly with bulk customers to adjust formulations when furnace atmospheres or surface treatments evolve.
Compared to naturally sourced browns or blends based around iron oxide red/yellow plus manganese, our Iron Chrome Brown resists leaching, chalking, and acid or base attack. Cement-based systems and vitreous enamels demand these qualities. We submit samples to accelerated leaching and solubility tests and record loss of pigment mass across cycles. Glaze colorists appreciate the predictable development of brown tones, even when experimenting with firing reductions or flux compositions.
Pigment selection can make or break industrial ceramic and coating lines. We routinely compare Iron Chrome Brown to hematite red, manganese brown, and cobalt nickel blacks. Some customers on a budget may try blends of hematite and manganese to chase brown shades, but those alternatives fall short on high-temperature color holdout and chemical inertness. Blends often show color drift, while Iron Chrome Brown’s spinel structure sets a new standard for color fastness after sintering.
Our product tolerates kiln settings up to 1300°C, with minimal fading, versus iron oxide red, which tends to gray out in reducing atmospheres. Cheaper options lack the chemical durability—chromium ensures much lower solubility, even in harsh alkaline glazes or cementitious mixes. For white body tiles, mixing Iron Chrome Brown at as low as 0.5% achieves stable coloration. Conventional brown blends require higher loadings and risk iron bleeding.
Decades ago, pigment supply meant fluctuations in delivery and color. Our in-house roasting and milling cut down on waiting times, and this manufacturing control shows up in the repeatability customers see on the production floor. We field calls about small changes in kiln temperature or glaze chemistry, often troubleshooting in direct partnership with plant technicians. Our technical support has a warehouse background, not just lab experience.
Before each shipment, our QC team grinds samples side-by-side with customer-supplied clay or frit, replicates the firing cycles, and matches visual and instrumental shade standards. These rigorous checks have reduced returns and ensured our customers, whether in small-scale tile works or large-volume masonry, know what to expect.
As regulations tighten, we have adapted our manufacturing process to comply with chromium limits and workplace safety standards. Chromium content in our Iron Chrome Brown stands strictly below regulated thresholds, with batch results and Safety Data Sheets available for customer audits. Chromium in spinel form locks the element into a stable matrix, lowering extractable or leachable content far below soluble chromates. We maintain air-handling and filtration at all emission points in the plant, monitoring workplace exposure for our own team’s safety and for customer trust.
We continually improve our waste management. Dust and off-spec batches are recycled in-house, further minimizing our waste stream. By working toward an ISO-certified process, we provide documented traceability—not just to pass an audit but because our own experience tells us better documentation leads to fewer production surprises.
Large ceramic tile lines send us reports on the pigment’s shade strength after firing, and smaller pottery workshops compare notes on batch-to-batch consistency. We document feedback, feed it into our next round of process adjustments, and often solve issues in days—not weeks—because our technical staff walks the factory floor regularly. End users in cement and construction often share results showing our pigment withstands freeze-thaw cycles better than previous blends.
Some customers need micro-sized pigment to achieve a glossier surface, while others value high dispersibility in low-speed mixers. We keep reserve runs tailored for these application demands, drawing from an inventory that covers a range of particle sizes and calcination profiles.
Industrial pigment production comes with specific challenges. Raw material purity can swing with mining conditions or supplier practices. We source directly from long-term partners, rejecting inconsistent shipments before they hit our production line. Sintering kilns run at 1200–1300°C and demand constant maintenance. Our operators handle controls, and we invest in preventative maintenance, not just repairs, to avoid downtime.
Energy costs remain a major concern—the calcination process calls for gas or electric kilns, and small efficiency losses quickly show up in yearly balance sheets. We’re piloting heat recovery from kiln exhaust and installing power monitoring at multiple stages, aiming to lower costs and environmental footprint over time.
Some suppliers blend cheaper iron oxides and hope to mimic our pigment’s performance, but those products suffer in demanding firing or cement settings. We maintain a chemical and phase map of each batch, checking for unwanted phases or incomplete reactions. Failure here can mean poor tint strength, random color spots, or chemical instability in the finished ceramic.
Decades of side-by-side batch comparisons show the benefits of the spinel phase. We’ve watched trial tiles made with other brown formulas—sometimes pigment floats, sometimes it migrates, and too often, it fades under sunlight or leaches when confronted by salt solutions. The strict control built into manufacturing Iron Chrome Brown shields customers from this risk.
Our R&D works on lowering the environmental footprint of pigment production, pushing for lower firing temperatures and higher raw material yields. We look for ways to repurpose off-grade material, reducing overall waste. Every innovation gets field tested; we send new batches to trusted ceramic partners for real-world feedback before considering scale-up. Engineers from end-user factories visit our production floor, bring back samples, and witness how we adapt kilns and chemistries to tackle persistent industry challenges.
The continued demand for brown hues in modern architecture and decorative ceramics challenges us to keep raising standards. Custom shade matching, improved lightfastness, and compatibility with new ceramic bodies drive our ongoing investment in equipment and process knowledge.
We work with trade groups, attend technical ceramic conferences, and host site visits for production managers, educators, and R&D staff. Our facility welcomes partners to observe process controls and lab testing, and we swap data on pigment performance for new construction materials. That transparency helps the sector set realistic benchmarks for durability and performance.
We train staff in the latest industry practices and chemical hazards, and we encourage our team to share field-gleaned knowledge back to the plant—what works, what fails, and where improvements still lie ahead.
Recent years saw supply disruptions ripple through mining and chemical sectors. We keep substantial raw material buffer stocks, layer in multiple supplier options, and hold higher finished goods inventory through key months. This buffer protected customers from missing delivery windows or scrambling for last-minute alternatives. Price hikes in chromium and iron markets forced cost reviews, but we focused on increasing internal efficiencies and kept price fluctuations moderate compared to market averages.
As global demands push up volumes for large-scale construction and infrastructure, our scaling investments keep us agile. We can fulfill bulk pallet orders or specialty ceramic pigment batches.
Some of our oldest customers started with small orders and grew into major accounts. They tell us the reason they stick with our Iron Chrome Brown is trust. Consistent color, responsive troubleshooting, and shared willingness to track down root causes of field issues matter in industries where a single batch can set a whole production line back.
We keep open lines—customers share concerns over changing regulations, new glaze formulations, or unexpected on-site results. We visit their sites, invite them to inspect our controls, and learn together as needs evolve. Shared documentation, not just marketing claims, has built partnership longevity. No product change goes through without comprehensive testing and customer consultation.
On our production floor and in our labs, we maintain full colorimetric documentation—CIELAB values, reflectance curves, particle size analysis—and keep batch records for years. Every batch of Iron Chrome Brown ships with tested results for color, chemical composition, and recommended dosage data for ceramics, cement, and glaze use.
New production staff undergo hands-on training in both lab analysis and production troubleshooting. Supervisors track deviations, review logs, and feed findings back to both sourcing and process engineering. The learning loop remains active, and we encourage both internal and customer reporting to spot anomalies earlier.
Like most modern manufacturers, we take environmental, health, and worker exposure seriously. Fume extraction, regular air quality measurement, and closed handling of chrome-bearing precursors keep dust levels low. Training covers emergency response, routine hygiene, and process safety rules. We prefer investing in safer handling equipment and workplace upgrades—these decisions come from direct experience with long-term staff and field reports, not just regulations.
When recycling off-grade pigment, we run emissions capture for both particulate and vapor forms. Every process update goes through an internal review to screen for possible changes to waste discharge or downstream user risks. We publish relevant environmental performance highlights annually.
Project archives track where Iron Chrome Brown solves industry problems. Roofing tile manufacturers report decades of outdoor exposure with minimal fading. Masonry product lines note persistent shade across runs. Glazed ceramics returned from field installations confirm resistance to cleaning agents, sunlight, and urban atmospheres. We save physical samples for customer inspection; real-world history trumps lab data alone.
We learn from both positive and negative field results. When a customer experienced unexpected glaze clouding at a new firing schedule, we reviewed pigment preparation, collaborated with both their and our technical teams, and pinpointed the solution as a shift in frit chemistry—not just pigment changes. Every trouble ticket closes with both lab and customer signoff.
Supply chain managers, lab technicians, and production teams come back to us for the proof in repeatable results. This pigment offers the technical reliability expected in ceramics and construction—high tint strength, resilience in hostile settings, and batch-to-batch accuracy. Trust grows from technical evidence, regular communication, and a demonstrated record of support that does not end at the dock door.
Whether customers run automated tile lines or craft pottery by hand, they value knowing the pigment performs predictably whatever manufacturing twists arise. Our team accepts this trust as an ongoing responsibility.
Iron Chrome Brown’s value comes from decades of field performance, technical improvement, and responsive service—values that only a dedicated manufacturer, not a trader or agent, can offer. Our experience guides every decision, from raw material selection to in-process sampling and customer troubleshooting. Industrial pigment is more than just a colorant: it’s the foundation of many building and ceramic elements that must pass the test of time, weather, and market evolution.
With every shipment, technical discussion, and field test, we aim to ensure Iron Chrome Brown meets the real-world standards our partners expect—standards built from experience, documented by rigorous control, and sustained by mutual trust between manufacturer and user.
