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Fumed mixed oxides


AEROSIL® fumed silica—product groups


Physico-chemical data of fumed mixed oxides

Grades

BET surface area [m2/g]

Loss on drying [%]

pH value

Chemical composition

AEROSIL® MOX 80

80 ± 20

1.5

3.6‑4.5

SiO2/Al2O3

AEROSIL® MOX 170

170 ± 30

≤ 1.5

3.6‑4.5

SiO2/Al2O3

AEROSIL® COK 84

185 ± 30

1.5

3.6‑4.3

SiO2/Al2O3

The data represents typical values.

 

AEROSIL® MOX grades are recommended for the production of highly-loaded low viscous aqueous dispersions. The fumed mixed oxides are manufactured (co-fumed) using the AEROSIL®-process as previously described, and may be regarded as a mixture of SiO2 and Al2O3 on the molecular level. AEROSIL® COK 84 is a physical mixture of SiO2 and Al2O3 which provides strong thickening effects in aqueous media.

Positive effects:

  • High-loading levels of MOX grades in dispersions

  • Strong thickening effect in polar media with AEROSIL® COK 84

  • Catalyst support

  • Rheology control of greases and lubricants