Iron Oxide Red 130 - Excellent Color Stability for Industrial Coatings
Product Overview
Iron Oxide, commercially recognized as Iron Oxide Red or Ferric Oxide, is an inorganic compound with the chemical formula Fe₂O₃. Known historically as burnt limonite, burnt ochre, or colcothar, this pigment has served as a cornerstone of industrial coloration since the 19th century. Its reddish-brown powder form combines exceptional chemical stability with broad compatibility, making it indispensable across sectors ranging from construction to advanced metallurgy. With a Mohs hardness of 5.5-6.5 and a specific gravity of 5.24 g/cm³, it stands as one of the most economical and environmentally compliant pigments in global markets.
Physical & Chemical Properties
| Parameter | Specification |
|---|---|
| Appearance | Fine reddish-brown powder |
| Solubility | Soluble in strong acids (HCl, H₂SO₄) |
| Melting Point | 1,565°C |
| Particle Size | 0.2–2.0 μm (adjustable per application) |
| pH Stability | 3–12 |
| Oil Absorption | 15–25 g/100g |
| Refractive Index | 3.01 |
Key Characteristics
Thermal Resistance
- Stable up to 1,200°C, ideal for refractory coatings and high-temperature ceramics.
- No phase transition below 800°C, ensuring color consistency in kiln-fired products.
Chemical Inertness
- Resists UV radiation, alkalis, and weak acids (pH 3–12).
- Non-reactive with organic solvents, resins, and polymer matrices.
Optical Performance
- High opacity (＞97% hiding power at 20μm film thickness).
- Lightfastness rating: 8+ on Blue Wool Scale (ISO 105-B02).
Eco-Compliance
- Heavy metal-free (Pb/Cd/Cr⁶+ content ＜10ppm).
- REACH Annex XVII & RoHS Directive compliant.
Manufacturing Process
Industrial-grade Fe₂O₃ is synthesized through two primary methods:
1. Calcination Method
- Raw Materials: Ferrous sulfate (FeSO₄·7H₂O) or low-grade iron ochre.
- Process Flow:
- Pre-treatment: Dehydration of FeSO₄ at 250°C
- Primary calcination: 700–800°C in rotary kiln (4–6 hours)
- Post-treatment: Milling to target particle size (Jet mill/Raymond mill)
- Output: 98.5% purity, BET surface area 8–15 m²/g
2. Liquid-Phase Precipitation
- Utilizes scrap iron and nitric acid in controlled reactors.
- Produces nano-sized particles (＜100nm) for premium coatings and electronics.
Industrial Applications
I. Building & Construction Materials
Colored Concrete & Cement
- Integral coloration for precast concrete slabs, roofing tiles, and pavers.
- Dosage: 3–8% by cement weight (economical vs. organic dyes).
Terrazzo & Architectural Finishes
- Uniform dispersion in epoxy resins for decorative flooring.
- UV-stable alternative to fade-prone synthetic pigments.
Mortars & Grouts
- Enhances aesthetic appeal of joint fillers while resisting efflorescence.
II. Coatings & Paint Industry
Protective Primers
- Iron Red Primer: Replaces lead-based paints (e.g., red lead) in ship hulls and steel structures.
- Corrosion inhibition mechanism:
- Physical barrier against moisture ingress
- Synergy with zinc phosphate in cathodic protection
Decorative Finishes
- Waterborne Systems: 5–15% loading in acrylic emulsion paints for exterior walls.
- Powder Coatings: Pre-mixed with polyester resins for appliance finishes.
Specialty Coatings
- Anti-graffiti coatings: Chemical resistance enables easy surface cleaning.
- Intumescent fireproofing: Compatible with ammonium polyphosphate systems.
III. Plastics & Rubber Manufacturing
Polymer Compounding
- Masterbatch production for PET bottles (food-grade purity ＞99.9%).
- Heat-stable coloration for engineering plastics (nylon, PBT).
Rubber Products
- Reinforcing filler for automotive tires (reduces carbon black dependency).
- UV protection for rubber seals and conveyor belts.
IV. Advanced Material Engineering
Powder Metallurgy
- Base material for soft magnetic composites (SMCs) in electric motors.
- Reduces eddy current losses in high-frequency inductors.
Catalyst Supports
- Mesoporous Fe₂O₃ structures for Fischer-Tropsch synthesis.
- Surface-modified variants in automotive exhaust SCR systems.
Precision Polishing
- Colloidal suspensions for optical lens finishing (Ra ＜0.1nm).
- Lapping compounds for silicon wafer planarization.
Technical Advantages
- Cost Efficiency: 30–50% lower lifecycle cost vs. organic pigments.
- Regulatory Safety: Exempt from IARC carcinogen classification.
- Process Flexibility: Compatible with spray drying, extrusion, and sol-gel techniques.
Quality Assurance
- Certifications: ISO 9001:2015, ISO 14001:2015
- Testing Protocols:
- Color consistency: Spectrophotometric analysis (CIE Lab*)
- Particle distribution: Laser diffraction (ISO 13320)
- Chemical purity: XRF/ICP-OES batch testing
Packaging & Handling
- Standard Units: 25kg multi-layer kraft paper bags with PE liner
- Bulk Solutions: 1-ton FIBCs with moisture-proof barrier
- Special Formats:
- Pre-dispersed pastes (70% solids in mineral spirits)
- Nano-powders in nitrogen-flushed aluminum cans
Sustainability Profile
- Circular Economy: 85% recycled content in calcination process
- Carbon Footprint: 1.2kg CO₂/kg product (30% below industry average)
- Waste Management: Spent catalyst recovery programs available
Why Partner With Us?
- Technical Expertise: 50+ years in iron oxide nanotechnology
- Custom Solutions: Tailored particle size distributions and surface treatments
- Global Logistics: JIT delivery supported by regional warehouses
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
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Our Advantages:
Rich Experience-over 20 years in industry field
Ranges of products categories with quality guarantee
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In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.
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