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Industrial-Grade High-Purity Crystalline Silica Powder

Ultra-High Purity: SiO2 ≥99%, low metal impurities, excellent chemical stability
Precise Particle Size: D50 0.5μm-25μm (customizable), with laser particle size analysis report available
Outstanding Performance: High insulation (volume resistivity >1015 Ω·cm), heat-resistant (melting point >1600°C)
Custom Solutions: Tailored particle size distribution & surface modification (e.g., silane coupling agent)

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Product Description

Key Selling Points

Ultra-High Purity: SiO₂ ≥99%, low metal impurities, excellent chemical stability
Precise Particle Size: D50 0.5μm-25μm (customizable), with laser particle size analysis report available
Outstanding Performance: High insulation (volume resistivity >10¹⁵ Ω·cm), heat-resistant (melting point >1600°C)
Custom Solutions: Tailored particle size distribution & surface modification (e.g., silane coupling agent)

Technical Specifications

Parameter	Value / Description
Chemical Composition	SiO₂ ≥99%, Fe₂O₃ ≤0.01%, Al₂O₃ ≤0.1%
Particle Size Distribution	D50 0.5-25μm (D97/D10 customizable)
Whiteness	≥92% (ISO brightness standard)
Moisture Content	≤0.5% (105°C drying method)
Loss on Ignition	≤0.8% (1000°C treatment)
Density	2.65 g/cm³ (true density)

Item	Unit	Typical Values
Exterior	/	white powder
Density	kg/m³	2.65 ×10³
Moh's hardness	/	7
Coefficient of linear expansion	1/k	14×10^-6
Pyroconductivity	w/k.m	12.6
Refraction coefficient	/	1.54

Applications

Electronics Encapsulation: Filler for epoxy/silicone resins to reduce CTE & enhance thermal conductivity
Ceramics: Reinforcing phase for precision ceramics & refractory materials
Coatings: Wear-resistant modifier for high-end anti-corrosion coatings
Rubber/Plastics: Strengthening filler for polymer composites
3D Printing: Raw material for specialty ceramic powders

Quality Control

▸ ISO9001-certified manufacturing process
▸ Batch-specific third-party test reports (SGS/BV available)
▸ Dust-free workshop for grading & packaging

Packaging & Shipping

Standard: 25kg/bag (customizable options)
Logistics: Bulk bags or sample sizes upon request

Why Choose Us?

Direct Manufacturer: Own quartz mining resources for purity control
Advanced Technology: Imported airflow classification equipment for precise sizing
Rapid Support: Samples shipped within 48 hours + technical solutions

Contact Now: Free samples & expert engineering support for optimal particle size matching!