AEROPERL®—special granulated fumed silicas

AEROSIL® product groups

Special granulated fumed silicas
AEROSIL^®grades	Average particle size[µm]	Moisture [wt.%]	pH	Chemical composition
AEROPERL^® 300/30	approx. 30	< 3.5	4.0‑6.0	SiO₂
AEROPERL^®300 Pharma	approx. 30	< 2.5	3.5-5.5	SiO₂
VP AEROPERL^® P 25/20	approx. 20	< 2.5	3.0-4.5	TiO₂

The data represents typical values.

In contrast to Evonik's fine-particle core product AEROSIL^®, AEROPERL^® is a mechanically stable granulate consisting of spherical particles with an average size of about 30 micrometers (or 30 millionths of a meter). The highly porous granules of pure silicon dioxide are eminently suitable as carrier substances for active ingredients, fragrances, and flavors in liquid or paste form, or for other liquids that must be incorporated into powder formulations. AEROPERL^® facilitates these kinds of manufacturing processes because its granular property makes it remarkably easy to handle.

Positive effects:

Dust free and easy handling
High purity
Excellent flow both loaded and unloaded
High adsorption capacity, fast uptake
Low thickening of solvents
Easy separations from liquids and gases