Crystalline Silica Powder

Data sheet

Particle Size	0.5-50 μm, or customized
Density	2.2 g/cm3
Materials	silicon dioxide, SiO2
Appearance	White powder
Purity	98%-99.9%

More info

Crystalline Silica Powder's primary component is alpha-crystalline silicon oxide (α-SiO2), characterized by high chemical purity, stable physical and chemical properties, excellent weather resistance, and superior electrical insulation. It is a key functional filler for enhancing the performance of composite materials and is widely used in epoxy resin casting, electrical insulation, high-end coatings, plastics, rubber, and ceramics. Available in a wide range of purities and particle sizes, HM's Silica Powder meets the highest standards of quality and reliability for demanding applications.

Crystalline Silica Powder

Crystalline Silica Powder Basic Properties

Item	Unit	Typical Value
Appearance	/	White Powder
Density	kg/m³	2.20×10³
Mohs hardness	/	6.0
Dielectric constant	/	3.88（1MHz）
Dielectric loss	/	0.0002（1MHz）
Coefficient of linear expansion	1/K	0.5×10^-6
Thermal conductivity	W/K·m	1.1
Refractive index	/	1.45

Crystalline Silica Powder Specifications

Item	Parameter	Specifications
Purity	SiO₂content	98.0-99.9%
Ionic Impurities	Na+, Cl-, etc.	Impurities can be controlled to below 3 ppm.
Particle Size Distribution	D50	0.5-50 µm, or customized
Particle Size Distribution	PSD	Adjustable based on standard profiles to meet specific requirements, including multimodal and narrow distributions.
Appearance	Whiteness	Adjustable within a range of 60 to 98.
Appearance	Transparency	High-transparency options are available upon request.
Surface Properties	Hydrophobicity, Oil Absorption, etc.	Surface modification can be achieved using various functional agents to meet customer requirements.

Crystalline Silica Powder SEM

Crystalline Silica Powder Key Features

High Purity & Inertness: Exceptionally high SiO₂ content and chemically inert, resisting reactions with most chemicals.
Superior Electrical Properties: Features very low electrical conductivity and dielectric loss, making it an ideal insulating material.
Enhanced Physical Properties: High hardness and excellent wear resistance. As a filler, it significantly improves the mechanical strength, stiffness, and hardness of composite materials.
Low Coefficient of Thermal Expansion (CTE): Matches well with matrix materials like resins, effectively reducing the thermal expansion of finished products and improving dimensional stability.
Controlled Particle Size Distribution: Available in various particle size specifications through precise classification to meet different filling and rheological requirements.

Crystalline Silica Powder Applications

Electronics & Electrical: Epoxy resin potting compounds, molding compounds, insulators, and cast components for high-voltage electrical apparatus.
Composite Materials: High-performance engineering plastics and rubber products, serving as a reinforcing and toughening agent.
Coatings Industry: Weather-resistant, anti-corrosive, and anti-abrasion coatings, enhancing surface hardness and scratch resistance.
Ceramics & Refractories: Used as a silicon source in the production of precision ceramics, glazes, and high-grade refractory materials.
Other Fields: Sealants, adhesives, plastic films, and more.

Crystalline Silica Powder Packing And Shipping

The Crystalline Silica Powder is securely packed in wooden crates or cartons, reinforced with cushioning materials to prevent movement during transit. This packaging approach ensures that the products remain intact and protected throughout the shipping process.

Crystalline Silica Powder Packing

Where to Buy Crystalline Silica Powder in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Quartz Ceramic products including Crystalline Silica Powder, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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