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.

(China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder)

Specification of China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder

China factories supply silicon dioxide powder. The CAS number is 7631-86-9. This powder is called fumed silica. Its particle size is 200 nanometers. This makes it nano silicon powder. The particles are very small. The powder looks white and fluffy. It has no smell.

The main part is silicon dioxide. SiO2 is the chemical formula. The purity level is high. It is usually 99.8% pure. Moisture content stays low. This keeps the powder dry. The surface area is large. This helps the powder work better.

This nano silica is hydrophilic. This means it attracts water. It works well in many liquids. The powder thickens liquids effectively. It prevents settling in mixtures. It acts as a good anti-caking agent. Flow improves in powders. It reinforces materials strongly.

Production uses a special process. High temperatures vaporize silicon. The vapor burns in oxygen. This forms tiny silica particles. These particles fuse into chains. The chains form a three-dimensional net. This creates the fumed silica structure. Strict production control ensures quality.

Many industries use this powder. Coatings use it as a thickener. Sealants need it for reinforcement. Adhesives benefit from its properties. Silicone rubber relies on it. Resins incorporate it for strength. Pharmaceuticals find uses for it. Cosmetics add it for texture. Food applications exist too. Industrial applications are broad.

The powder packs carefully. Common packing is 10kg bags. Other sizes are available. Kraft paper bags are standard. Plastic liners protect the powder. Customers can request specific packing. Supply from China is reliable. Factories maintain steady stock. Global shipping is possible. Quality meets international standards. Performance is consistent batch after batch.

(China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder)

Applications of China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder

China factory supply CAS NO.7631-86-9 SiO2 silicon dioxide, known as Fumed Silica 200 Nano Silicon Powder. This material is silicon dioxide made by a special flame process. The flame process creates very fine particles. These particles are extremely small, around 200 nanometers. This nano size gives the powder special properties.

The powder has a huge surface area. It is also very light and fluffy. It acts like a thickener. It makes liquids thicker without changing them chemically. It controls flow very well. This is called rheology control. The powder is chemically inert. This means it doesn’t react easily with other substances. It is also very pure. These features make it useful for many things.

One major use is in coatings and paints. The powder prevents paint from dripping. It helps the paint settle evenly. It makes the paint surface smooth. Builders use it in adhesives and sealants too. It stops these materials from sagging before they dry. It makes them stick better. It improves their strength.

Pharmaceutical companies use this fumed silica. It helps powder medicines flow freely. It stops powders from clumping together. It acts as a carrier for active ingredients. Cosmetic makers add it to lotions and creams. It gives products a nice feel. It thickens them effectively. It can reduce shine in makeup.

Rubber and plastic industries rely on it. Adding the powder makes rubber stronger. It improves tear resistance. It helps rubber keep its shape. In plastics, it makes parts harder. It improves heat resistance. It makes surfaces less scratch-prone.

Electronics benefit from this silica. It thickens pastes for circuit boards. It insulates sensitive components. It protects against moisture. It helps manage heat in devices.

The China factory provides consistent quality. They offer good technical support. They deliver reliable supply. This fumed silica powder solves many industrial challenges.

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 China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder

What is fumed silica (CAS 7631-86-9)?
Fumed silica is ultra-fine silicon dioxide powder. It is made through flame hydrolysis. This process creates particles around 200 nanometers. The powder looks white and fluffy. It is not natural silica sand.

Where is this nano silica powder used?
It serves many industries. In paints, it prevents settling. In adhesives, it thickens the mix. For silicone rubber, it adds strength. In cosmetics, it controls texture. It also works in pharmaceuticals.

How do you control quality?
Our factory tests every batch. We check purity first. Then we measure particle size. We confirm the surface area. Moisture levels get tested too. All results match international standards.

What packaging do you offer?
We pack in moisture-proof bags. Common sizes are 10kg or 25kg. We use kraft paper bags inside. Outer layers are plastic woven sacks. We offer custom packaging. Just ask us.

How do I order this silica powder?
Send us your requirements. Tell us the quantity needed. Share your delivery address. We confirm the price fast. Then we ship quickly. We support sea, air, or train freight.

(China factory supply CAS NO.7631-86-9 sio2 silicon dioxide Fumed Silica 200 Nano Silicon Powder)