Overview of Fumed Silica

Fumed silica, also known as pyrogenic silica, is an ultra-fine, high-purity amorphous silicon dioxide (SiO2) produced via the combustion of silicon tetrachloride in an oxygen-hydrogen flame. It appears as a fluffy white powder and is valued for its ability to thicken, stabilize, and reinforce materials.

Features of Fumed Silica

• High Surface Area: Typically ranges from 50 to 380 m²/g, providing excellent thickening and reinforcing properties.
• Hydrophilic or Hydrophobic Variants: Available in both forms depending on surface treatment, allowing for tailored applications.
• Excellent Thixotropy: Increases viscosity and improves flow properties of liquids and pastes.
• Chemical Inertness: Resistant to most chemicals, making it suitable for a wide range of industrial uses.

•  Enhances free-flowing properties and stability.

Specification of Fumed Silicon oxide / Silica / SiO2 nano powder

Item Spec: Fumed Silica (SiO ₂) Nano Powder

Overview

Fumed silica is a high-purity nano-sized powder made from silicon dioxide (SiO ₂). It is created with fire hydrolysis, which gives it a really great bit size and huge surface area. This material appears as a cosy, white powder and blends well right into liquids, finishes, and solid compounds.

Secret Residences

Purity: Over 99.8% SiO TWO.
Surface Area: 50– 400 m TWO/ g (wager approach).
Key Particle Dimension: 5– 50 nanometers.
Bulk Density: 30– 80 g/L.
pH Worth: 3.5– 4.5 in 4% liquid diffusion.

The powder has strong thickening and anti-settling results. It likewise boosts scrape resistance, flow control, and security in several formulations.

Applications

Fumed silica is extensively used across sectors due to its distinct framework and efficiency. In paints and coverings, it protects against pigment settling and regulates drooping on vertical surfaces. In adhesives and sealants, it adds thixotropy– implying the item sits tight until stirred or used.

In cosmetics, it serves as a free-flow representative and oil absorber, giving products a smooth feel. In rubber and plastics, it increases mechanical strength and warmth resistance. Electronics manufacturers use it in encapsulants and thermal user interface products for far better dependability.

Handling and Storage

Store fumed silica in a dry, great area away from wetness. Maintain containers sealed when not being used. The powder is light and can come to be airborne conveniently, so wear proper safety equipment throughout handling– such as gloves, goggles, and a dirt mask. Prevent breathing in the great particles.

This nano powder meets global top quality criteria and appropriates for both commercial and specialty applications where performance and consistency issue.

Applications of Fumed Silicon oxide / Silica / SiO2 nano powder

Applications of Fumed Silica (SiO ₂) Nano Powder

Enlarging and Rheology Control

Fumed silica is extensively used to regulate circulation and density in fluids. It stops paints, adhesives, and layers from sagging or dripping. When blended in small amounts, it offers products a steady framework without changing their appearance or performance.

Support in Rubbers and Plastics

In rubber and plastic goods, fumed silica includes stamina and longevity. It boosts tear resistance and assists materials last much longer under anxiety. This makes it useful in automobile components, seals, and commercial hoses.

Anti-Caking Representative

Dry powders like spices, cleaning agents, and pharmaceuticals typically clump with each other. Including a tiny quantity of fumed silica keeps them free-flowing. It functions by layer particles so they do not stick, also in humid conditions.

Matting and Surface Area Effects

Paints and varnishes make use of fumed silica to create a soft, non-reflective finish. It scatters light uniformly throughout the surface, offering a consistent matte appearance. This is common in furniture coatings, wall surface paints, and printing inks.

Thermal Insulation

Due to its fine framework and low density, fumed silica catches air properly. It is made use of in shielding materials for structures, home appliances, and industrial devices to decrease warmth transfer and save energy.

Polishing and Abrasives

In precision polishing– like for glass, steels, or semiconductors– fumed silica offers mild yet effective abrasion. Its nano-sized fragments eliminate small flaws without damaging surface areas.

Cosmetics and Personal Care

Tooth paste, creams, and makeup typically consist of fumed silica. It assists take in oil, boost appearance, and maintain ingredients uniformly blended. It also gives items a smooth feel on the skin.

Company Introduction

Welcome to HiphopGalaxy, a trusted global supplier of high-quality silicon dioxide (SiO2) powder, renowned for its exceptional purity and performance. Established with a vision to deliver cutting-edge materials that meet the diverse needs of modern industries, we have positioned ourselves as a leading player in the international market.

Our SiO2 powders find applications across multiple sectors, including adhesives, coatings, pharmaceuticals, cosmetics, polymers, and electronics. Each application benefits from the unique properties of our products—high surface area, excellent thixotropy, chemical inertness, and superior reinforcement capabilities. Whether you need hydrophilic or hydrophobic variants, we offer tailored solutions to meet your specific requirements.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Fumed Silicon oxide / Silica / SiO2 nano powder

What is fumed silica?

Fumed silica is a very fine powder made from silicon dioxide (SiO₂). It forms when silicon tetrachloride burns in a flame. The result is tiny particles that clump together into a light, fluffy material. This powder has a huge surface area and works well in many industrial products.

Why do people use fumed silica in products?

People add fumed silica to thicken liquids, stop powders from caking, and keep mixtures stable. It acts as a flow aid, anti-settling agent, and reinforcing filler. You’ll find it in paints, adhesives, cosmetics, and even food.

Is fumed silica safe?

Yes, fumed silica is generally safe when used correctly. It’s approved for use in food, medicines, and personal care items. Still, breathing in large amounts of the dry powder over time may irritate the lungs. Always follow safety instructions and use proper protective gear when handling it in bulk.

How is fumed silica different from other silica types?

Unlike regular sand or precipitated silica, fumed silica has much smaller particles and a higher surface area. This gives it stronger thickening and binding power. It also mixes more evenly into liquids and stays suspended better.

How should I store fumed silica?

Keep fumed silica in a dry, sealed container. It absorbs moisture from the air, which can make it clump or lose effectiveness. Store it away from heat and direct sunlight. Use clean, dry tools when scooping it out to avoid adding water or contaminants.