| HS Code | 649199 |
| Chemical Name | Iron(III) oxide |
| Chemical Formula | Fe2O3 |
| Molar Mass | 159.69 g/mol |
| Color | Red |
| Appearance | Reddish-brown powder |
| Melting Point | 1565 °C |
| Density | 5.24 g/cm³ |
| Solubility In Water | Insoluble |
| Cas Number | 1309-37-1 |
| Mohs Hardness | 5-6 |
| Magnetic Properties | Antiferromagnetic |
| Odor | Odorless |
| Ph In Slurry | 7 (neutral) |
| Refractive Index | 2.94 |
As an accredited Red Iron Oxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Red Iron Oxide is packaged in a sturdy, 25 kg woven polypropylene bag, featuring clear labeling and a moisture-resistant inner lining. |
| Shipping | Red Iron Oxide is shipped in sealed, sturdy bags or drums, typically made from polyethylene-lined materials to prevent contamination and moisture ingress. The containers are clearly labeled and handled as non-hazardous freight, protected from physical damage and moisture during transit, and stored in cool, dry, and well-ventilated conditions. |
| Storage | Red Iron Oxide should be stored in a cool, dry, well-ventilated area, away from incompatible substances such as strong acids. Keep the container tightly closed and properly labeled to avoid contamination. Avoid contact with moisture and direct sunlight, and prevent dust formation. Use storage areas with adequate safety measures to minimize potential inhalation or accidental spillage risks. |
Competitive Red Iron Oxide 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.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Red iron oxide, also known as ferric oxide, stands among the most widely used synthetic pigments worldwide, cutting across multiple sectors due to its stability, high tint strength, and robust colorlock. At our facility, we produce red iron oxide under careful, controlled synthesis. This control delivers consistent particle size and high purity, which in practice means you can trust both the visual results and the performance in every batch. We focus not on trading volume but on the kind of steady quality that end-builders, manufacturers of high-value coatings, and artisans rely on to prevent headaches down the line.
Our red iron oxide starts as iron salt—in most cases, refined by the precipitation and calcination route. In production, temperature, pressure, and pH require continuous, hands-on monitoring. These controls determine color shade, particle granulometry, and the absence of contaminants like manganese or silicates. Our main model ranges from Fe2O3 purity levels above 98 percent, with minimal heavy metals, and comes in fine particle sizes, typically around 0.2-0.4 microns. The color spans warm brick hues to deeper rust reds, aimed at matching the needs of paint and plastics manufacturers, concrete producers, ceramics, rubber, glass, polishing compounds, and even cosmetics.
Across every production lot, staff run multiple checks—vividness, tinting strength, moisture content, oil absorption, and dispersibility matter as much as chemical content. We have seen inexperience in processing lead to color drift, bleaching under weather exposure, or excess water holding, which causes problems in mixing and longevity. By overseeing the full train from iron raw material through finished powder, we cut out risks and guesswork for our end users.
Construction firms turn to our red iron oxide for its colorfastness in architectural concrete, sidewalks, brick, and landscaping pavers. Unlike natural ochre, which loses brightness from batch to batch and comes with variable impurities, our synthetic iron oxide delivers sharp, batch-stable colors. In paints and coatings, high tinting power lets formulators use less pigment per ton, lowering cost and simplifying the recipe. In plastics, particle uniformity fosters even dispersion, preventing speckling and waste during extrusion or molding. Polishing compound makers count on our Fe2O3 for its hardness and lack of abrasive grit, critical for mirror-finish metals or glass.
Artisans in the traditional ceramics world have long prized iron oxide—our fine grades let them achieve slick, predictable reds across stoneware and porcelain glazes. Beauty and health brands, concerned about contamination in mineral-based pigments, appreciate our low lead and arsenic values. Manufacturers focused on green certifications find it easier to document and audit our supply chain compared to spot-carbon sources or recycled iron dust, which often bring trace contaminants. Our factory regularly submits to regulatory and customer-led audits, and full traceability runs from raw ore through final packing.
We offer primary grades tailored to different end-use requirements. Granular and microfine powders cover the needs of dry-mix mortars, plastics compounding, and water-based dispersions. Most buyers in the construction sector order a 99-percent pass-thru 325 mesh, which blends quickly into cement mixes and does not clump. Paint and ink formulators typically specify median particle sizes at 0.4 microns or less, seeking maximum hiding power per gram. The cosmetic and ceramic grades see tighter controls on metal trace impurities and are packaged in food-safe conditions. Bulk shipments go in lined bags or eco-drum packaging.
Moisture content is one of those practical issues that rarely shows up in technical papers but matters in the field. If powder absorbs atmospheric water, not only does handling suffer, but users encounter inaccurate dosing and, at scale, flawed color in the end-product. We invest in drying and sealed storage, keeping free water below 0.6 percent in every lot, which simplifies user process control—especially for automatic feeders and metering lines.
We back our lab numbers with field testing, constantly retrieving feedback from construction, plastic, and paint plants about workability and storage. That practice goes beyond selling iron oxide as a commodity—it exposes us to the subtle differences that can derail a job: streak development in coatings, inconsistent paver shading, or unexpected reactivity with lime binders.
People often ask, why not use natural red ochres or earths, or even competing reds made from lead, cadmium, or organic pigments? Each carries specific issues that synthetic red iron oxide addresses directly. Natural iron oxides, while abundant, fluctuate in color depending on their mineral source, and the impurities—clays, silicas, even organic matter—impact color tone and stability. Lead and cadmium pigments remain effective in color output but fall short on environmental safety, putting producers at odds with tightening global regulations, especially in regions pushing for non-toxic building materials and consumer products.
Organic reds provide intensity but are rarely as weather-resistant, especially under UV exposure in outdoor installations. This leads to fading and premature failure in paints and plastics. In our experience with both large-scale construction and continuous process manufacturers, synthetic iron oxide’s chemical inertness and UV stability provide the least-hassle path for formulators and users looking for decade-spanning color retention without surprise costs or remediation headaches.
Matching from batch to batch also turns product selection from a gamble into a science. Our direct manufacturing system lets us hit both tight and broad tolerance targets as needed—vital for brands that advertise a signature color or shade across their entire range. In short, downstream users who rely on forecasting and strict inventory control prefer our product, as it eliminates the margin for error tied to unpredictable sources.
Experience says that real-world utility trumps claims about purity or color brilliance. Our technical support team, working out of the plant rather than an abstract office, interacts daily with clients across industries to help solve direct challenges—be it caking in the hopper during a hot, rainy season, or a requirement for low-dust grades that reduce airborne particle exposure. From construction jobsites to automated plastics lines, process engineers want zero surprises in how pigment integrates with their base materials.
Our role as a producer means adjustments, not just batch reports. If builders find coating opens up or streaks when exposed to sun, our chemists look at iron oxide distribution, not just binder or process. We have reformulated particle distributions and drying procedures based on direct client input—feedback cycles that keep products relevant and field-tested, rather than stuck in a lab-first mentality.
Many competitors operate as packaging specialists or middlemen, relabeling powders sourced from fluctuating upstream supplies. That strategy opens room for mislabeled grades, hidden impurities, or inconsistent color performance under real environmental exposure. As a manufacturer with physical control, we trace every lot, hold data on all input chemicals, and retain transition samples to resolve disputes or track batch issues, a level of accountability that buyers rarely find from indirect sources.
Over recent years, regulatory bodies in various regions have tightened the allowable lead and heavy metal limits in pigments—especially those used in school and public structure projects. As direct manufacturers, we stay ahead by qualifying every new raw material batch for heavy metals, well below the strictest norms. Last year, several government contractors switched to our product, not because of price, but because repeated field tests on their existing “imported” pigments failed to meet the specs required by new legislation. Building for longevity, not just for the current quarter, becomes possible with the right powder base.
A client in the plastics sector shifted to our iron oxide after repeated equipment clogging and downtime. The core issue came down to a supplier mixing bulk-sourced iron fines, which behaved unpredictably under extrusion heat. Our iron oxide, with its clean particle size and narrow moisture window, allowed for smooth, reliable throughputs. After switching, their monthly maintenance dropped sharply, as did waste from rejected runs.
We have also partnered with architects designing high-profile public spaces, where color continuity from the first batch to the last delivered result matters for visual identity over decades. Our lot-to-lot consistency, enabled by batch-by-batch calibration, provided assurance that standard formulas would not drift as projects expanded or repeated. As a result, facility owners gained longer repaint cycles, reducing overall operational costs.
Red iron oxide as we manufacture it supports wider sustainability goals. Our refining avoids toxic reactants; all wastewater undergoes pH neutralization and filtration before discharge. Off-specification product, instead of disposal, is rerouted into concrete or road base applications. The main air handling system in our plant captures fines and prevents dust release, not only making a cleaner workplace but improving consistency in finished goods. Regular staff health checks and independent testing underscore our commitment to both product quality and plant safety. Buyers take confidence knowing materials arrive from a facility where documentation matches experience on the ground.
Even seemingly small changes, such as removing mineral oil in favor of vegetable-based lubricants in our granulation process, mean lower volatile organics in the final pigment—a real point of concern for green-certified buildings and consumer goods facing scrutiny under eco-labeling laws. Adoption of bulk packaging reduces single-use plastics, cutting both costs and waste. Our R&D team, right next to the main production floor, pilots improvements in drying and handling that respond to direct feedback from large manufacturers under tight automation rules.
From a direct producer’s standpoint, we see far too many problems and “mystery failures” come back to a disconnect between pigment batches and real-world applications. Red iron oxide that performs in one setting may fail in another—clumping in humid conditions, settling out of suspension in thin coatings, or reacting unexpectedly with certain binder chemistries. Our site’s physical proximity to key user industries enables us to solve these problems before they become widespread. For instance, in precast operations located in damp regions, powders need to resist agglomeration and stay flowable for automated batching. We fine-tune drying curves and granulation techniques in real time, then follow up with on-site visits when necessary.
A major misconception persists out in the market that all iron oxide is interchangeable. Customers who swap between brands or suppliers often see mismatched shades, erratic performance during mixing, or even visible impurities that would not pass muster in regulated supply chains. That confusion traces to non-manufacturers, who may pass along product received from free-market channels, with no technical backstop or traceability when problems emerge.
Direct manufacturing couples best-practice chemistry with hands-on engineering. As we see repeatedly, experience in the plant and constant dialogue with the field yield technical upgrades missed by copycat resellers. Recognizing nuance—from the speed powders disperse in solvents, to the bloating effect of trace moisture—is part of what defines our service and results. Real improvements stack up from the raw material inlet to the customer application, not from paperwork alone.
We keep paced with emerging norms and technical shifts. With increased regulatory pressure in developed economies and shifting market standards in new regions, requirements now stretch beyond color and physical performance. Buyers demand transparency in sourcing, handling, and storage conditions, as well as compliance with environmental and occupational standards. Our processes evolve in response, incorporating regular audits, batch testing, and direct certification by third-party agencies, which assures not just the buyer’s regulatory department, but the teams handling, mixing, and applying our powders under real-world constraints.
Where certification and chain of custody matter—for example, in infrastructure projects qualifying for green bonds or in consumer brands demanding ingredient origin transparency—we provide direct evidence and open our production floor. This open-door method stands in contrast to general traders who may not know the true origin or batch history of their product. Our plant data integrates with ERP systems, allowing for seamless traceability and audit trail assurance.
Our innovation focus comes from customer challenges, not just internal research targets. Bulk consumers in ready-mix concrete pointed out issues with settling and “flashing” color. Our lab team collaborated on altering pigment surface treatments, enabling powders to wet out rapidly in dense mixes. This not only resolved color separation but sped up cleaning cycles on dosing equipment. In plastics, feedback showed some pigment blends became unstable under high-shear extrusion. We reformulated our process, adjusting crystal habit and particle morphology to deliver a pigment that did not separate or discolor during recycle loops.
On the worker safety side, some customers sought reductions in airborne dust during batch preparation. In response, we developed a pelletized red iron oxide format—offering the same performance with dramatically fewer airborne particulates. This small shift improved air quality along user production lines, supporting both occupational health targets and local emission requirements.
We believe the proof of red iron oxide lies not just in chemical analysis, but in how it meets evolving industry, environmental, and practical needs. Our manufacturing approach means responsiveness, traceability, and accountability at every stage. Through ongoing technical support, process improvements, and a strong connection to the realities faced by both industrial formulators and craftsmen, we maintain a standard that others—often sourcing indirectly—cannot match.
While competing products sometimes tempt buyers with lower initial costs or claims of equivalency, these offers usually leave hidden risks on the table, from unpredictable on-site performance to regulatory uncertainty. Our customers, be they concrete batching plants seeking zero-variation pigment or global consumer brands enforcing tight traceability, come back for the value in not just the pigment itself, but the reliability and problem-solving focus built into every kilogram we deliver.