Evonik

Fumed Silica Aerosil 200

CAS 112945-52-5

In Stock

MOQ

50 kg

Lead Time

7–14 days

Packaging

15 kg bags

Specifications

SiO2 Content≥99.8%
Tapped Density≈50 g/l
BET Surface Area175–225 m²/g
pH (4% in water)3.7–4.5

FAQ

Silanol groups on the surface form a hydrogen-bonded network that builds viscosity at rest (thixotropy) and breaks down under shear (good application). Requires thorough dispersion.

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