Introduction
Red Lead Oxide, chemically known as lead tetroxide (Pb3O4), is a bright orange-red inorganic pigment. With Pb3O4 content ≥98%, it has been widely used as an anti-rust pigment for decades, providing excellent adhesion and corrosion protection for steel surfaces.
Technical Data
|
Lead Tetroxide (Pb3O4) content |
% |
≥98 |
|
Lead Dioxide (PbO2) content |
% |
≥33.9 |
|
Iron (Fe) content |
% |
≤0.0008 |
|
Copper (Cu) content |
% |
≤0.0008 |
|
Insoluble matter in nitric acid |
% |
≤0.1 |
|
Moisture content |
% |
≤0.1 |
|
Heavy metals (calculated as Pb) |
% |
≤0.01 |
|
Residue on sieve (400 mesh) |
% |
≤0.05 |
|
Particle size (D90) |
μm |
≤10 |
|
Water-soluble salts (dried at 105℃) |
% |
≤0.1 |
|
Density (at 25℃) |
g/cm³ |
9.1 |
|
Melting point |
℃ |
500 |
Key Features
High Pb3O4 content (≥98%) and PbO2 content (≥33.9%), ensuring strong anti-rust performance.
Excellent adhesion to steel surfaces, widely used in anti-rust primers and paints.
Good dispersion in oil-based and solvent-based coating systems.
Insoluble in water and alcohol; stable under normal storage conditions.
Fine particle size (D90 ≤10 μm) for uniform coloration.
Applications
Anti-rust coatings - anti-rust paints, primers for steel structures, marine and maintenance coatings.
Lead-acid batteries - high-grade maintenance-free battery plates and piezoelectric components.
Optical glass - improves refractive index and dispersion of optical and flint glass.
Ceramic glazes - lowers melting temperature, improves gloss and hardness of glaze.
Rubber industry - vulcanization activator for natural and synthetic rubber.
Electronics and precision instruments.
Packaging & Storage
25kg woven bag lined with plastic bag; customized packaging available.
Store in cool, dry, ventilated warehouse, away from fire and heat sources.
Keep separate from acids and food-grade chemicals.
Inquiry Now
Send your inquiry today to lucy@desonpigment.com or WhatsApp +86 138 7312 1965.
We will reply within 12 hours with the best quotation and TDS.
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