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Certificate of Analysis-COA
97% Content
| Test items | Technical indicators | Testing result |
| Appearance | Orange-red, Red, powder | Pass |
| Lead Dioxide content | ≥33.9% | 33.98 |
| Red Lead Oxide content | ≥97% | 97.15 |
| Ferric Oxide content | ≤0.005% | 0.0015 |
| Nitric acid-insoluble matter content | ≤0.002% | 0.0013 |
| Cupric oxide content | ≤0.002% | 0.001 |
| Water content | ≤0.2% | 0.1 |
| Volatile Matter at 150℃ | ≤0.2% | 0.2 |
| Particle size (44μm),% ≤ | 0.75 | 0.5 |
| Testing conclusions | Pass | |
Applications
- Lead-Acid Batteries A primary raw material for lead-acid battery pastes and plates. High purity and controlled particle size deliver consistent electrochemical performance, supporting reliable capacity, cycling life and manufacturing efficiency in automotive, industrial and energy storage batteries.
- Anticorrosion Primers & Coatings Red lead (lead tetroxide) is the classic anticorrosion pigment for structural steel primers, marine coatings and industrial maintenance paints. Excellent barrier and passivation properties protect metal surfaces in harsh environments for decades of service.
- Glass, Glaze & Ceramics Essential fluxes for lead glass, crystal, ceramic glazes and enamels. Improve clarity, refractive index and surface brilliance while lowering melting temperatures, enabling energy-efficient production of high-quality glass and ceramic ware.
- PVC Stabilizers & Rubber Additives A base material for lead-based heat stabilizers used in PVC cable, pipe and profile processing, delivering long-term thermal stability and electrical insulation. Also used as curing and reinforcing additives in rubber compounds.
- Pigments & Specialty Chemicals Provides stable orange-red and yellow pigments for paints, ceramics and industrial applications; Consistent color and purity ensure uniform, dependable results.
- Lead Chemical Intermediates A starting material for producing other lead salts and lead-based chemicals. Stable supply, consistent quality and responsive technical support enable uninterrupted production for downstream manufacturers.
Quality Assurance
Every batch of chemicals leaves our factory with complete laboratory documentation — not a promise, but verifiable test data. From incoming raw material inspection to finished-goods release, each batch is tested against published specifications, and a Certificate of Analysis (COA) accompanies every single shipment. What you order is exactly what we test — and what we ship.
Tested by our in-house ISO 9001:2015 laboratory. Verified independently by third-party labs on request (SGS / BV / Intertek). Traceable from raw material to your warehouse.
Packaging
