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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