99.8% High Purity Si Metal Powder For Chemical Processing
Ideal for aluminum alloy production, silicone material processing, and industrial deoxidation.
Fine particle control ensures uniform reaction, consistent melting, and high output efficiency.
Packaged in 25 kg sealed kraft bags or 1-ton jumbo sacks, suitable for long-term export.
Industrial Profile and Functional Performance of 99.8% High Purity Si Metal Powder
High Purity Si Metal Powder 99.8% is an advanced industrial material designed for precision alloying and high-performance chemical synthesis. Processed through vacuum refining, magnetic filtration, and precision grinding, the powder maintains consistent purity and controlled particle morphology, ensuring predictable results in metallurgical reactions.
Its applications include alloy modification, silicone polymer synthesis, electronic ceramics, and high-temperature composites. The material's uniform granularity minimizes oxidation, enhances reaction stability, and ensures clean product formation. Each batch is strictly analyzed for elemental content, density, and moisture to guarantee export-level reliability and consistency.
Technical Parameters and Analytical Results - 99.8% High Purity Si Metal Powder
| Technical Indicator | Prescribed Range |
|---|---|
| Elemental Silicon Purity | Minimum 99.8% |
| Ferrous Impurity Content | 0.14% Upper Limit |
| Aluminum Impurity Level | 0.09% Max Threshold |
| Calcium Residue Concentration | 0.03% Maximum Allowance |
| Carbon Trace Content | 0.015% Upper Bound |
| 50th Percentile Particle Diameter (D50) | 25–37 μm |
| Apparent Density Specification | 1.24 g/cm³ |
| Water Content Threshold | 0.05% Maximum Limit |
Modern Factory Facilities for 99.8% High Purity Si Metal Powder Production


Combined Advantages - Product Excellence and Company Strength
High Purity Silicon Metal Powder 99.8% offers exceptional stability, oxidation resistance, and fine particle uniformity, making it ideal for complex metallurgical and chemical applications. Its precise granularity ensures uniform heat transfer and clean alloy composition, reducing material loss and increasing productivity.
Our company integrates research, production, and global export under ISO9001-certified systems, ensuring full quality traceability from raw material selection to packaging. Equipped with automated milling lines, laser particle analyzers, and air-sealed filling systems, we maintain consistent standards across every batch. With over 15 years of export experience, we provide customized mesh sizes, private labeling, and flexible logistics, delivering reliable service and long-term value to international buyers.
Our qualifications

CE

ISO9001

ISO14001

ISO45001

SGS
FAQ
1. What are the main uses of this product?
It's widely used in aluminum-silicon alloys, silicone compounds, ceramics, and refractory materials.
2. Can the purity or granularity be customized?
Yes, we offer tailored purity grades and mesh sizes to meet your technical requirements.
3. How do you ensure consistent export quality?
Each batch undergoes composition testing, particle analysis, and moisture inspection before dispatch.
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