Ultra-Low Impurity Manganese Oxide for Soft Magnetics
Short Product Description
Ultra-low impurity manganese oxide is designed for soft magnetic material production, offering controlled trace element levels and consistent MnO purity. It supports stable magnetic performance in ferrite cores and electronic components.

Technical Specifications
| Parameter | Typical Value |
|---|---|
| MnO Purity | ≥ 99% |
| Manganese (Mn) Content | ≥ 76% |
| Fe Content | ≤ 0.01% |
| SiO₂ | ≤ 0.02% |
| CaO | ≤ 0.01% |
| Particle Size | D50: 1–5 μm |
| Moisture | ≤ 0.5% |
| Loss on Ignition | ≤ 0.3% |
Key Features
Ultra-low impurity levels ensure high magnetic permeability and low core loss
High MnO purity supports consistent ferrite phase formation
Controlled trace elements minimize interference in magnetic properties
Fine and uniform particle size improves sintering behavior
Stable chemical composition for repeatable batch performance
Applications
Soft ferrite cores – used in Mn-Zn and Ni-Zn ferrites for inductors and transformers
High-frequency magnetic components – supports low core loss and stable permeability
Electronic ceramics – acts as a controlled manganese source in functional materials
Magnetic core manufacturing – ensures consistency in industrial-scale production
Problems This Product Solves
Magnetic performance instability → ultra-low impurities reduce variability in permeability and loss
Contamination from trace elements → strict impurity control improves electronic-grade reliability
Inconsistent sintering behavior → uniform particle size enhances densification and microstructure
Batch-to-batch variation → stable MnO composition ensures reproducible magnetic properties
Packaging & Supply
25 kg sealed bags with moisture-proof inner liner
Palletized export packaging for international shipment
Bulk supply available for ferrite manufacturers
Samples available for material validation and testing
Customization & Technical Support
Custom particle size distribution for specific sintering profiles
Tailored impurity control based on ferrite system requirements
Bulk supply solutions for continuous production
Technical support for ferrite formulation and process optimization
FAQ
Q1: Why are ultra-low impurities critical in manganese oxide for soft magnetics?
Impurities such as Fe, Si, and Ca can significantly affect magnetic permeability and core loss. Ultra-low impurity manganese oxide ensures stable and predictable magnetic behavior.
Q2: What types of ferrites can this material be used for?
It is suitable for Mn-Zn and Ni-Zn ferrite systems. These are commonly used in transformers, inductors, and EMI suppression components.
Q3: How does particle size affect ferrite production?
Fine and uniform particle size improves mixing homogeneity and sintering density. This results in better magnetic performance and reduced defects.
Q4: Is this manganese oxide suitable for high-frequency applications?
Yes, the controlled impurity profile and stable composition make it suitable for high-frequency magnetic cores. It helps reduce energy loss during operation.
Q5: What are the recommended storage conditions?
Store in a dry, sealed environment to prevent moisture absorption and contamination. Proper storage maintains chemical stability and processing performance.