S5130

Silica, fumed

powder

• 동의어(들): Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous
• Linear Formula: SiO₂
• CAS Number: 112945-52-5
• Molecular Weight: 60.08
• MDL number: MFCD00011232
• UNSPSC 코드: 12352300
• PubChem Substance ID: 57654622
• NACRES: NA.23

속성

• 양식: powder
• Quality Level: 200
• 표면적: 395 m²/g (±25 m²/g)
• refractive index: n20/D 1.46 (lit.)
• density: 2.3 lb/cu.ft at 25 °C (bulk density)(lit.)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

설명

일반 설명

Fumed silica may be synthesized by high temperature hydrolysis of SiCl₄ in O₂(N₂)/H₂ flame. It is amorphous in nature and possesses very high specific area. The micro droplets of amorphous silica fuse into a branch and form a chain like agglomerate.

애플리케이션

Fumed silica is used to deplete lipids and hormones in Taqman assays of human hepatoma cells HuH-7 and human liver cell line HepG2. Preparation of epoxidized natural rubber/fumed silica composites have been reported. Interaction of Gemini surfactant C12-s-C122Br with aqueous suspension of fumed silica has been studied. Fumed silica based nanocomposites reinforced with organo clay may be prepared. TiO₂/fumed silica porous ceramic material was used to prepare photocatalytic materials.

특징 및 장점

Has interesting thickening and thixotropic properties, and an enormous external surface area.

기타 정보

Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)