Iron Oxide Green: Pigment, Non-Toxic Uses & Bulk Powder Buying Guide

1. Iron Oxide Green Pigment: Versatile & Durable

Iron Oxide Green (Fe₂O₃) is a synthetic inorganic pigment known for its excellent lightfastness, chemical stability, and opacity. Widely used in:

Paints & Coatings: UV-resistant, ideal for outdoor applications.
Concrete & Construction: Adds color to bricks, tiles, and pavers.
Plastics & Ceramics: Heat-stable, perfect for high-temperature processes.

Data Comparison:
Lightfastness: 8/8 (excellent) vs. organic pigments (4-6/8).
Opacity: Higher than natural earth pigments.

2. Non-Toxic Iron Oxide Green: Safe for Cosmetics & Art

Unlike cadmium or chromium-based greens, synthetic Iron Oxide Green is FDA-approved for cosmetics and food-contact applications. Common uses:

Makeup & Tattoo Inks: Safe for sensitive skin.
Children’s Toys & Art Supplies: Meets ASTM D-4236 non-toxic standards.

Safety Data:
Heavy Metal Content: <50ppm (vs. 300ppm in some industrial pigments).
Biocompatibility: Passes ISO 10993-5 cytotoxicity tests.

3. Iron Oxide Green Powder Bulk: Cost-Effective Buying Tips

Buying in bulk (1kg+ quantities) reduces costs by 30-50%. Key considerations:

Purity: Look for ≥96% Fe₂O₃ for consistent color.
Particle Size: 0.5-5μm for smooth dispersion (coarser grades are cheaper).
Suppliers: Compare prices (avg. $5-$15/kg for industrial grade).

Bulk vs. Retail Pricing: