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.

(Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525)

Specification of Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525

Manufacturing facility Supply 99% SiO2 Fumed Silica (CAS 112945-52-5/ 112945525) is a high-purity artificial amorphous silicon dioxide powder produced by means of fire hydrolysis of silicon tetrachloride. This ultra-fine, nano-sized material is extensively utilized across industries for its outstanding reinforcing, thickening, and supporting homes.

** Chemical Requirements **:.
– ** Chemical Formula **: SiO2.
– ** Pureness **: ≥ 99%.
– ** CAS Number **: 112945-52-5 (also created as 112945525 without hyphens).

** Physical Characteristics **:.
– ** Look **: White, cosy, amorphous powder.
– ** Particle Dimension **: 7– 40 nm (main bit size).
– ** Area **: 200– 400 m ²/ g (wager approach).
– ** Bulk Density **: 0.03– 0.06 g/cm ³ (untapped); 0.1– 0.2 g/cm ³ (touched).
– ** pH Value **: 3.6– 4.3 (4% aqueous dispersion, hydrophilic type).
– ** Loss on Drying (105 ° C) **: ≤ 1.5%.
– ** SiO2 Material **: ≥ 99%.

** Key Applications **:.
1. ** Coatings, Adhesives, Sealants, and Elastomers (INSTANCE) **: Function as a rheology modifier, anti-settling agent, and reinforcement filler.
2. ** Pharmaceuticals **: Boosts flowability and security in tablet formulations.
3. ** Cosmetics **: Boosts appearance and viscosity in creams, gels, and toothpaste.
4. ** Construction Products **: Reinforces cement, mortars, and epoxy systems.
5. ** Electronics **: Utilized in thermal user interface materials and encapsulants.
6. ** Food Industry **: Anti-caking agent in powdered items (food-grade versions).

** Product packaging & Storage space **:.
Provided in moisture-proof laminated bags (5 kg, 10 kg, 20 kg) or tailored packaging. Store in a cool, completely dry location far from dampness and direct sunlight.

** Safety and security & Handling **:.
Safe but might create respiratory system or eye irritability upon dust direct exposure. Use PPE (gloves, safety glasses, masks) during handling. In situation of contact, rinse eyes/skin with water and look for clinical focus if required.

** Certifications **:.
Complies with ISO 9001, REACH, and FDA (for food-grade alternatives).

** Advantages **:.
– High area for optimal adsorption and reactivity.
– Outstanding thermal stability and chemical inertness.
– Boosts mechanical toughness, thickness control, and UV resistance in end products.

This fumed silica is optimal for enhancing performance in demanding applications, using regular top quality, and conference global regulative standards. Personalized particle dimension, surface treatment, and packaging alternatives are available upon demand.

(Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525)

Applications of Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525

Factory Supply 99% SiO2 Fumed Silica (CAS 112945-52-5, additionally composed as CAS 112945525 without hyphens) is a high-purity, ultra-fine powder widely identified for its versatility across markets. Composed of amorphous silicon dioxide, it is generated by means of vapor-phase hydrolysis of silicon tetrachloride, causing nanoscale particles with high surface and extraordinary physicochemical residential or commercial properties. Its key applications come from its capacity to work as a thickening agent, anti-caking agent, rheology modifier, and strengthening filler, making it crucial in markets varying from building to drugs.

In adhesives and sealants, fumed silica improves viscosity, avoids drooping, and improves bond stamina by providing thixotropic behavior. It likewise stabilizes formulas by avoiding filler settling. For coatings and paints, it makes certain also application, minimizes trickling, and improves sturdiness by enhancing structure and UV resistance. The plastics and rubber sectors rely on it to enhance mechanical residential properties, such as tensile stamina and warmth resistance, while lowering shrinkage during curing.

Drug applications take advantage of its function as a flow help in tablet production, making sure uniform mixing and compression. In cosmetics, it boosts appearance, absorbs oils, and maintains solutions in products like lotions and powders. Food-grade fumed silica acts as an anti-caking agent in powders and flavors, maintaining free-flowing residential or commercial properties.

This product’s hydrophobic or hydrophilic variants cater to particular requirements. Hydrophilic fumed silica disperses easily in polar solvents, perfect for water-based systems, while hydrophobic kinds, treated with silanes, excel in moisture-sensitive settings like silicone rubbers.

Manufactured under strict quality control, the manufacturing facility ensures consistent particle dimension, purity (99% SiO2), and low heavy steel content. Its nanoscale framework and huge surface area (100-400 m ²/ g) contribute to high reactivity and performance efficiency. Individuals gain from boosted product security, refining convenience, and enhanced end-product attributes.

Security standards advise managing with protective equipment to avoid inhalation, as the great powder can aggravate breathing systems. In General, Factory Supply 99% SiO2 Fumed Silica is a critical additive for optimizing efficiency, durability, and capability in varied commercial applications, backed by trustworthy production requirements and versatility to customized solutions.

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 Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525

**What is fumed silica?**
Fumed silica (CAS 112945-52-5, also written as 112945525) is a high-purity, synthetic amorphous silicon dioxide (SiO₂) produced by flame hydrolysis of silicon tetrachloride. It appears as a fine, white, fluffy powder with a nanoporous structure, offering high surface area and low bulk density. Its properties include excellent thickening, anti-settling, and reinforcing capabilities, making it ideal for industrial applications.

**What are the primary applications of 99% SiO₂ fumed silica?**
This material is widely used as a rheology modifier in adhesives, coatings, and inks to control viscosity and prevent sagging. It acts as a reinforcing filler in silicone rubber, enhances anti-caking in powders (e.g., food, pharmaceuticals), and improves durability in composites. Its hydrophobic or hydrophilic variants cater to specific needs in cosmetics, electronics, and construction materials.

**Is fumed silica safe to handle?**
Fumed silica is generally non-toxic but requires careful handling. Inhalation of airborne particles may cause respiratory irritation, so use PPE (masks, gloves, goggles) in dusty environments. It is not classified as a carcinogen, but prolonged exposure should be avoided. Always follow SDS guidelines and ensure proper ventilation during use.

**How should fumed silica be stored?**
Store in a cool, dry, well-ventilated area, away from moisture and incompatible substances like strong acids or bases. Keep containers tightly sealed to prevent moisture absorption, which can cause clumping. Shelf life is typically indefinite if stored correctly, but check for signs of contamination before use.

**How does fumed silica differ from precipitated silica?**
Fumed silica is produced via vapor-phase hydrolysis, yielding nanoparticles with high purity and a 3D branched structure, resulting in superior thickening and thixotropy. Precipitated silica is made through wet chemical processes, creating larger particles with lower surface area. Fumed silica offers better performance in high-end applications requiring stability and reinforcement, while precipitated silica is cost-effective for bulk uses.

(Factory Supply 99% SiO2 Fumed Silica Cas 112945-52-5 Fumed Silica Powder Cas 112945525)