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 CAS NO 7631-86-9 Silicon Dioxide Hydrophobic Fumed Silica Fusil215

Item Requirements: Hydrophobic Fumed Silica Fusil215 (CAS NO. 7631-86-9)

Review

Fusil215 is a high-purity hydrophobic fumed silica made from silicon dioxide (SiO ₂). It carries the CAS number 7631-86-9. This item is developed through a flame hydrolysis process and after that treated with dimethyldichlorosilane to give it water-repelling buildings. The result is a fine, free-flowing white powder that resists dampness and blends well right into several systems.

Secret Residences

Appearance: White, cosy powder
BET Surface Area: Approximately 200 ± 20 m ²/ g.
Loss on Drying (105 ° C, 2 humans resources): ≤ 1.5%.
pH Value (4% diffusion in water): 3.6– 4.6.
Hydrophobicity: Totally hydrophobic because of surface area therapy.
Mass Density: Around 50– 80 g/L.

Applications

Fusil215 works well as a thickening agent, anti-settling aid, and circulation control additive. It is frequently used in adhesives, sealants, coatings, and paints to avoid drooping and improve security. In cosmetics, it assists control oil and gives a smooth feel. Industrial individuals likewise add it to silicone rubbers and oils to boost performance without soaking up water.

Handling and Storage

Store Fusil215 in a completely dry, great place away from moisture. Keep containers snugly shut when not in use. Though not classified as unsafe, prevent breathing dust throughout handling. Use conventional industrial hygiene practices like handwear covers and eye security. Do not store near strong acids or bases.

Packaging

The product can be found in multi-wall paper bags with a polyethylene lining. Common internet weight is 10 kg per bag. Custom-made product packaging options are available upon demand.

Applications of CAS NO 7631-86-9 Silicon Dioxide Hydrophobic Fumed Silica Fusil215

Applications of CAS NO 7631-86-9 Silicon Dioxide– Hydrophobic Fumed Silica Fusil215

Efficiency Additive for Industrial Formulations

Fusil215 is a hydrophobic fumed silica made from high-purity silicon dioxide (CAS NO 7631-86-9). It delivers strong enlarging, anti-settling, and flow-control properties in many commercial products. Its surface area has been treated to drive away water, that makes it excellent for usage in moisture-sensitive systems.

Coatings and Paints

In paints and commercial finishes, Fusil215 stops pigments from sinking and keeps the mixture secure throughout storage. It also controls sagging on vertical surface areas without injuring gloss or clearness. This helps keep smooth, also surfaces after application.

Adhesives and Sealers

Fusil215 provides adhesives and sealants the appropriate balance of stiffness and spreadability. It prevents dropping in gap-filling applications and sustains form retention. Because it withstands wetness, it functions well in outdoor or humid settings where lasting efficiency issues.

Inks and Printing Pastes

Printers rely upon Fusil215 to take care of ink viscosity and quit pigment settling in screen and flexographic inks. It ensures consistent color and sharp detail across huge print runs. The hydrophobic nature additionally lowers sensitivity to humidity during storage and use.

Specialized Plastics and Rubber

When contributed to silicone rubber or thermoplastics, Fusil215 enhances mechanical toughness and processing control. It functions as a reinforcing filler while helping to stay clear of clumping throughout mixing. The result is much more consistent material actions and much better end-product high quality.

Personal Care and Cosmetics

Also in cosmetics like powders and lotions, Fusil215 contributes. It soaks up excess oil, provides a silky feeling, and aids energetic components stay uniformly distributed. Its water-repelling characteristic boosts use time and security in damp conditions.

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 CAS NO 7631-86-9 Silicon Dioxide Hydrophobic Fumed Silica Fusil215

Frequently Asked Questions About Hydrophobic Fumed Silica Fusil215 (CAS NO. 7631-86-9)

What is Fusil215?

Fusil215 is a hydrophobic fumed silica. It starts as regular fumed silica but gets treated with hexamethyldisilazane. This treatment makes it repel water. The result is a free-flowing white powder that mixes well into many systems without clumping.

Why choose hydrophobic over regular silica?

Regular fumed silica absorbs moisture. That can cause problems in products that must stay dry or stable. Fusil215 resists water. It keeps its thickening and anti-settling power even in wet conditions. Use it when you need performance that lasts.

Where is Fusil215 used?

This silica works in many industries. You’ll find it in paints, coatings, adhesives, and sealants. It also goes into cosmetics like powders and foundations. Industrial applications include greases, inks, and specialty chemicals. It helps control flow, prevent sagging, and stop pigments from sinking.

How much should I add to my product?

The right amount depends on your formula. Most users start with 1% to 5% by weight. Add it slowly while mixing. Too little won’t give full effect. Too much may make the mixture too thick. Always test small batches first to find the best level for your needs.

Is Fusil215 safe to handle?

Yes, but take normal precautions. Wear gloves and eye protection. Avoid breathing dust by using a mask or working in a ventilated area. Store it in a dry place with the bag sealed tight. Keep it away from food and children. Follow the safety data sheet for full guidance.