High Purity MnO2 for Optical Glass Manufacturing
Short Product Description
High Purity MnO₂ for Optical Glass Manufacturing is engineered manganese dioxide with ≥99.6% purity tailored for specialty glass production. This grade MnO₂ powder enhances optical glass color control, refractive index stability, and defect minimization in high-precision optical applications.
Technical Specifications
| Parameter | Typical Range | Unit |
|---|---|---|
| MnO₂ Purity (as MnO₂) | 99.60 – 99.90 | % |
| Fe (Iron) | ≤ 0.008 | % |
| SiO₂ (Silica) | ≤ 0.03 | % |
| Ca (Calcium) | ≤ 0.01 | % |
| Mg (Magnesium) | ≤ 0.01 | % |
| Particle Size (D50) | 2.5 – 6.0 | µm |
| Loss on Ignition (LOI) | 0.5 – 1.2 | % |
| Bulk Density | 2.5 – 3.2 | g/cm³ |
| pH (5% slurry) | 6.5 – 8.0 | — |
Key Features
High MnO₂ content (≥99.6%) for optical glass color precision and purity.
Low iron and trace impurities to prevent coloration and optical defects.
Controlled particle size for uniform dispersion in glass batch.
Consistent chemical composition to support refractive index stability.
Low loss on ignition ensures minimal volatilization during melting.
High bulk density for stable handling and dosing in glass furnaces.
Applications
Optical glass manufacturing — tailored for high-precision lenses and optical components.
Specialty glass compounds — improves color and transmission properties in specialty glass.
Precision optical coatings — as a dopant to achieve controlled refractive properties.
High-end optics and photonics — supports applications where defect control and purity are critical.
Packaging & Supply
Standard packaging options include 25 kg and 500 kg industrial bags with inner liners to protect against moisture. Export-ready packaging meets international freight standards for safe long-distance shipment. Bulk packaging and FCL/LCL shipping arrangements available.
Customization & Technical Support
Particle size distribution, impurity limits, and packaging formats can be adjusted to meet customer specifications. Technical support is available for formulation guidance and integration into optical glass processes.