Introduction to Iron Oxide Green

Iron Oxide Green is an inorganic pigment synthesized by coating iron oxide (Fe₂O₃) onto an anatase-type titanium dioxide (TiO₂) substrate. This pigment combines the bright green hue of chromium-based pigments with the non-toxic, weather-resistant, and UV-stable characteristics of titanium dioxide. It is widely used in architectural coatings, plastics, ceramics, construction materials, and other industrial applications.

Its unique formulation offers excellent dispersion, chemical resistance, and consistent color performance, making it a reliable and cost-effective alternative to organic green pigments.

Chemical Composition and Structure

It consists of iron oxide (Fe₂O₃) and anatase-type titanium dioxide (TiO₂), with potential additions of chromium compounds depending on color tone adjustment. The iron oxide provides the green tone, while the anatase TiO₂ enhances brightness, UV resistance, and pigment dispersion in various media.

• Chemical Components: Fe₂O₃ + TiO₂ (anatase-based)
• Appearance: Olive green to bright green fine powder
• Crystalline Type: Anatase-based inorganic pigment
• Particle Size: Micron-scale (typically 0.2–1.0 µm)
• Weather Resistance: Excellent, non-fading in outdoor applications
• Lightfastness: Outstanding under UV exposure
• Oil Absorption: Low, excellent dispersion in solvents and resins
• Toxicity: Non-toxic, environmentally safe

Applications

Thanks to its excellent covering power, color consistency, and thermal and UV stability, this pigment is widely used in:

1. Architectural Coatings: Exterior wall paints, anti-corrosion primers, and façade coatings.
2. Plastic Coloring: PVC, PE, PP masterbatches for construction pipes, tiles, or synthetic wood.
3. Construction Materials: Cement products, colored concrete, roof tiles, and paving bricks.
4. Ceramics & Enamels: Green glazes and durable surface coloration in ceramic manufacturing.
5. Rubber Industry: Colorant for industrial and automotive rubber products.

Advantages of Iron Oxide Green Pigment

• ✅ High Weather Resistance: Ideal for outdoor and long-lasting applications.
• ✅ Non-toxic & Eco-friendly: Free from heavy metals such as cadmium or lead.
• ✅ UV and Heat Stability: Maintains color under sunlight and processing temperatures.
• ✅ Good Dispersibility: Compatible with both aqueous and solvent-based systems.
• ✅ Economical: Cost-effective alternative to organic pigments with superior durability.

Conclusion

Iron Oxide Green is a versatile inorganic pigment that combines the environmental safety and excellent light stability of anatase titanium dioxide with the vivid coloration of iron oxide green. Its wide range of industrial applications makes it an ideal choice for users seeking both performance and safety in pigment selection.