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 Best Silica SiO2 Powder SSA 150 200 380 CAS No. 112945-52-5 Hydrophobic Fumed Silica 200

Hydrophobic Fumed Silica 200– High-Purity SiO Two Powder

Product Overview

Hydrophobic Fumed Silica 200 is a premium-grade silica powder made from high-purity silicon dioxide (SiO ₂). It brings the CAS number 112945-52-5 and features particular area (SSA) of 150, 200, or 380 m TWO/ g. This item is crafted for applications that require exceptional flow control, enlarging, and anti-settling performance in non-aqueous systems.

Secret Qualities

The powder is hydrophobic, meaning it drives away water. This attribute makes it ideal for usage in moisture-sensitive atmospheres. Its particles are incredibly fine and kind loose, cosy accumulations. These features help produce stable suspensions and protect against clumping in oils, materials, and solvents. The product continues to be chemically inert under regular conditions and reveals solid thermal security.

Technical Specifications

– Chemical Formula : SiO ₂.
– CAS Number : 112945-52-5.
– Surface Area (BET) : 150/ 200/ 380 m TWO/ g (selectable qualities).
– Appearance : White, free-flowing powder.
– pH (in 4% diffusion) : 3.6– 4.8.
– Loss on Drying : ≤ 1.5%.
– Ignition Loss (hydrophobic therapy) : 7– 13%.

Typical Applications

This fumed silica functions well in layers, adhesives, sealants, and inks. It enhances thickness without affecting clarity. In cosmetics, it aids control oil and provides a smooth feel. Industrial customers depend on it to enlarge silicone rubbers and improve powder flow in drugs. Since it stands up to moisture, it also expands life span in lots of solutions.

Handling and Storage

Store the powder in a completely dry, awesome location with the container snugly closed. Prevent direct exposure to humidity. Use common industrial hygiene techniques when taking care of– wear gloves and eye security. Avoid strong acids or bases to maintain efficiency stability.

Applications of Best Silica SiO2 Powder SSA 150 200 380 CAS No. 112945-52-5 Hydrophobic Fumed Silica 200

Applications of Hydrophobic Fumed Silica SiO ₂ Powder (SSA 150– 380, CAS No. 112945-52-5)

Enlarging and Rheology Control

Hydrophobic fumed silica is widely utilized to manage circulation and structure in fluid systems. It assists stop working out and splitting up in paints, coatings, and adhesives. The powder produces a secure network that provides products the ideal consistency without influencing quality or performance.

Anti-Caking Representative

In powders and granules, this silica maintains fragments from clumping together. It functions well in preservative, drugs, and industrial powders. Also in damp conditions, the hydrophobic surface repels dampness and maintains free-flowing properties.

Support in Silicone Rubbers

Fumed silica with high area (150– 380 m TWO/ g) reinforces silicone rubber substances. It boosts tear resistance, tensile strength, and resilience. This makes it excellent for seals, gaskets, and medical devices that need long-term dependability.

Matting Agent in Coatings

The great particle size and surface area framework help develop an uniform matte finish. Paints and varnishes utilize this silica to decrease gloss while maintaining surface level of smoothness and scratch resistance undamaged.

Stabilizer in Adhesives and Sealants

This silica quits sagging and plunging in vertical applications. It holds fillers and pigments evenly suspended. Consequently, sealers stay in area during treating and provide regular performance with time.

Performance in Harsh Atmospheres

Because it is hydrophobic, the powder resists water absorption. This characteristic makes sure security in outdoor or high-moisture settings. Products stay effective even under tough storage space or usage conditions.

Makers select this specific grade for its purity, consistent fragment size, and dependable surface treatment. It fulfills rigorous high quality criteria throughout markets such as automobile, building, cosmetics, and electronics.

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 Best Silica SiO2 Powder SSA 150 200 380 CAS No. 112945-52-5 Hydrophobic Fumed Silica 200

Top 5 FAQs About Hydrophobic Fumed Silica (SSA 150–380, CAS No. 112945-52-5)

What is hydrophobic fumed silica?

Hydrophobic fumed silica is a fine white powder made from silicon dioxide (SiO₂). It has been treated to repel water. This makes it useful in products that must stay dry or resist moisture.

What does SSA mean?

SSA stands for Specific Surface Area. It shows how much surface the powder has per gram. Higher SSA (like 380 m²/g) means finer particles and stronger thickening power. Lower SSA (like 150 m²/g) gives easier mixing and flow.

Why choose hydrophobic over hydrophilic silica?

Hydrophobic silica resists water. It works better in wet or humid conditions. Hydrophilic silica absorbs moisture and may clump. Use hydrophobic types when you need stability in oils, coatings, or sealants.

Where is this silica used?

This powder is common in adhesives, paints, cosmetics, and industrial lubricants. It prevents settling, controls flow, and adds texture. Because it’s hydrophobic, it also helps products last longer outdoors or in damp places.

Is this product safe to handle?

Yes, but take normal precautions. Wear gloves and a mask when handling fine powders. Avoid breathing dust. Store in a dry, sealed container away from moisture. The CAS number 112945-52-5 confirms it is standard hydrophobic fumed silica. Always follow safety data sheet (SDS) instructions.