Silica
Description
Silica (CAS 7631-86-9 ), also known as silicon dioxide or SiO2, is a high-purity amorphous mineral used across industrial and consumer product manufacturing. As E551 in food-contact and additive applications, it functions primarily as an anticaking agent. It serves as a flow aid and rheology modifier in powder and liquid systems. In personal care, silica controls texture and oil absorption in pressed powders, dry shampoos, and skincare formulations where sensory performance and spreadability are critical. Rubber and tire compounding relies on precipitated silica as a reinforcing filler that improves rolling resistance and wet grip performance in high-performance tire compounds. Plastics and polymer processing uses fumed silica to modify viscosity. This application is vital in adhesives, sealants, and coatings, preventing sagging and improving shelf stability. In printing and packaging, silica acts as a matting agent and anti-slip additive in inks and surface coatings. Silica is supplied as fumed silica, precipitated silica, and colloidal silica dispersions, each suited to different processing requirements. Standard grades include food-grade ( FCC , E551) and pharmaceutical-grade options. These pharmaceutical grades meet USP and Ph. Eur. standards, alongside technical-grade for industrial applications. Particle size, surface area, and surface treatment vary by grade and determine suitability. Hydrophilic or hydrophobic treatments are available depending on specific formulation or processing conditions. This versatility ensures that the material meets the rigorous demands of diverse global manufacturing sectors. Contact us for supply of Silica Request Quote
Other Names (Synonyms)
silicic anhydride | silicon oxide | SILICON DIOXIDE | Diatomaceous silica | Wessalon | Zorbax sil | Silica, amorphous | Silica, colloidal | SiO2 | E220A
Key Technical Features
- High Purity Grade standard
- Consistent Batch Quality
- Full Regulatory & REACH Support
- Global Logistics Network enabled
Physical Properties
Safety & Handling
Hazard Statements
Precautionary Statements
Trade & Regulatory
Related Products
Vitreous silica
CAS 60676-86-0, EC 262-373-8
Silicon dioxide
CAS 112945-52-5, EC 601-084-9
Silica Gel
CAS 112926-00-8, EC 601-214-2
Precipitated amorphous silica
CAS 68855-54-9, EC 272-489-0
Hydrated silica
CAS 10279-57-9, EC 600-358-3
Calcium silicate
CAS 1344-95-2, EC 935-756-9
Quartz
CAS 14808-60-7, EC 238-878-4
Aluminium silicate
CAS 12141-46-7, EC 235-253-8
Silicon
CAS 7440-21-3, EC 231-130-8
Methylated silica
CAS 67762-90-7, EC 614-122-2