Hydrophobic Fumed silica:

XYSIL® hydrophobic fumed silica is based on hydrophilic fumed silica products, aftertreated with HMDS (hexamethyldisilazane) and DDS (Dimethyldichlorosilane) based superficial treatment, or structure modified.

BET surface area[m2/g]Loss on drying [%]pH valueCarbon content[%]Surface modification
XYSIL® R120120 ± 20≤ 0.76.0-7.51.5-2.5HMDS
XYSIL® R120B120 ± 20≤ 0.73.7-4.50.6-1.2DDS
XYSIL® R120H120 ± 20≤ 1.05.5-7.54.5.-6.5
XYSIL® R170170 ± 20≤ 0.55.5-8.01.5-2.5HMDS
XYSIL® R170H170 ± 20≤ 0.73.7-4.50.7-1.5DDS
XYSIL® R200200 ± 20≤ 0.55.5-7.5>1.8HMDS
XYSIL® R210210 ± 20≤ 0.57.0-8.53.5-6.5
XYSIL® R230260 ± 20≤ 0.55.5-8.02.5-4.0HMDS


Besides, you can get more information about fumed silica in the service center, Service Center; if there is any documents unavailable, please contact us

Fumed Silica Gallery

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