Hydrophilic fumed metal oxides

AEROSIL® fumed silica—product groups

Hydrophilic fumed metal oxides
AEROSIL^® grades	BET Surface area [m²/g]	Loss on drying [wt.%]	pH	Chemical composition
AEROXIDE^® Alu C	100 ± 15	< 5.0	4.5‑6.0	Al₂O₃
AEROXIDE^® Alu 65	65 ± 10	< 5.0	4.5‑6.0	Al₂O₃
AEROXIDE^® Alu 130	130 ± 20	< 5.0	4.4‑5.4	Al₂O₃
AEROXIDE^® TiO₂P 25	50 ± 15	< 1.5	3.5‑4.5	TiO₂
AEROXIDE^® TiO₂P 90	90 ± 20	< 4.0	3.2‑4.5	TiO₂
AEROXIDE^® TiO₂PF 2	57.5 ± 12.5	< 2.0	3.5‑4.5	TIO₂

The data represents typical values.

The AEROSIL^® manufacturing process can also be applied to produce fumed aluminum and titanium oxides. The treatment processes mentioned previously are also applicable here and result in a wide range of fine particle products with extraordinary properties.

AEROXIDE^® Alu C is a pure aluminum oxide with a hydrophilic character. In water it displays a positive zeta potential. Its primary use is as a free-flow agent and it regulates triboelectric effects.

AEROXIDE^® TiO₂ P 25 is a titanium dioxide without pigment properties. Thanks to its purity and fine particle size, it may be used as a catalyst support or as a heat stabilizer for silicone rubber.

Positive effects:

Free-flow in powder coatings
Heat stabilization of silicone elastomers
Optimization of adsorption properties, e.g. inkjet applications