Iron oxide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1332-37-2 |
| Product name | Iron oxide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Iron oxide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Iron oxide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Iron oxide
| Industry | Application | Process |
|---|---|---|
| Pigments & Coatings | Colorant | Iron oxide pigments are incorporated into coatings and uniformly dispersed via mixing and grinding processes. |
| Construction Materials | Colorant | Iron oxide is added directly to raw materials during production of cement, tiles, and other construction materials to achieve specific color effects. |
| Ceramics Manufacturing | Glazing & Decoration | Applied for glazing or surface decoration of ceramic products; color development occurs during high-temperature firing, where iron oxide reacts with other components. |
| Steel Industry | Desulfurization Agent | Used in steelmaking to remove sulfur from molten steel, thereby improving steel quality; typically introduced via lance injection or direct addition to the melt. |
| Glass Industry | Colorant | Imparts color to glass products, particularly in colored glass manufacturing; achieved by co-melting iron oxide powder with glass batch materials. |
| Cosmetics | Colorant for Color Cosmetics | Employed as a safe inorganic pigment in color cosmetics such as lipsticks and eyeshadows; requires fine grinding prior to use. |
| Electronics Industry | Magnetic Material | Used in the production of magnetic storage media (e.g., tapes, disks) and certain sensors; specialized chemical synthesis methods produce iron oxide particles with tailored magnetic properties. |
| Rubber Industry | Reinforcing Filler | Enhances mechanical strength and abrasion resistance of rubber products; incorporated by compounding with natural or synthetic rubber, followed by vulcanization. |
Manufacturing Quality Control of Iron oxide
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Main Component Content (Fe₂O₃) | Titration Method (Potassium Dichromate Method) | The sample is dissolved and Fe³⁺ is reduced to Fe²⁺ using a reducing agent (e.g., SnCl₂-TiCl₃). The Fe²⁺ is then titrated with a standard K₂Cr₂O₇ solution to determine total iron content, which is converted to Fe₂O₃ content. This method offers high accuracy and is suitable for determining high concentrations. |
| Impurity Element Content | Atomic Absorption Spectroscopy (AAS) | After dissolving the sample, an atomic absorption spectrometer is used to measure the content of Fe and other metallic impurities (such as Al, Ca, Mn, etc.). It has high sensitivity and is suitable for trace impurity analysis. |
| Impurity Element Content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | The sample is treated by acid digestion or fusion, then excited in a high-temperature plasma. Multiple elements are simultaneously determined based on the intensity of their characteristic spectral lines. This method offers high precision and is widely used in impurity analysis. |
| Phase Composition | X-ray Diffraction (XRD) | X-rays are directed at the sample, and the phase structure is identified based on diffraction peak positions and intensities, distinguishing crystal forms such as α-Fe₂O₃ (hematite) and γ-Fe₂O₃ (maghemite). Used for purity and crystalline phase identification. |
| Particle Size Distribution | Laser Particle Size Analysis | The sample is dispersed in liquid or gas, and particle size distribution is measured based on laser light scattering principles. Suitable for particle size quality control of iron oxide powders. |
| Specific Surface Area | BET Surface Area Method | The specific surface area is calculated using the BET equation based on nitrogen adsorption-desorption isotherms. Commonly used to evaluate surface characteristics of nano-sized iron oxides or catalyst supports. |
| Moisture Content | Loss on Drying (Gravimetric Method) | The sample is dried at a specified temperature (e.g., 105–110°C) until constant weight. Moisture content is calculated from the mass loss. Simple to operate and commonly used for routine testing. |
| Loss on Ignition (LOI) | High-Temperature Ignition Method | The sample is ignited at high temperature (e.g., 950–1000°C) for a set period, and the mass loss is measured, indicating the content of volatile components, crystalline water, or organic matter. |
| Chloride Ion Content | Ion Chromatography or Argentometric Method (Mohr Method) | Chloride ions are extracted with water, then quantified using ion chromatography or silver nitrate titration. Prevents chloride-induced corrosion or discoloration in downstream applications (e.g., ceramics, coatings). |
| Acid-Insoluble Residue | Gravimetric Method | The sample is dissolved in hydrochloric acid, and the insoluble residue is filtered, washed, dried, and weighed. Used to assess levels of mechanical impurities such as sand or grit. |
Technical Specifications of Iron oxide
| Test Item | Specification |
|---|---|
| Appearance | Red to reddish-brown powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=1.0% |
| Heavy Metals | <=20 ppm |
| Total Impurities | <=1.5% |
| Solubility | Insoluble in water; soluble in strong acids |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Iron oxide
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| Lot/Batch Number | *Required fields | |
Packaging of Iron oxide
Industrial Iron oxide Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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