Hydrophobic Fumed Silica
Henan Xunyu ChemicalXYSIL® hydrophobic fumed silica is based on hydrophilic fumed silica products, aftertreated with HMDS (hexamethyldisilazane) and DDS (Dimethyldichlorosilane) based superficial treatment, or structure modified.
| Grade | BET surface area [m2/g] | Loss on drying [%] | pH value | Carbon content [%] | Surface modification |
|---|---|---|---|---|---|
| XYSIL® R120 | 120 ± 20 | ≤ 0.7 | 6.0-7.5 | 1.5-2.5 | HMDS |
| XYSIL® R120B | 120 ± 20 | ≤ 0.7 | 3.7-4.5 | 0.6-1.2 | DDS |
| XYSIL® R120H | 120 ± 20 | ≤ 1.0 | 5.5-7.5 | 4.5.-6.5 | – |
| XYSIL® R170 | 170 ± 20 | ≤ 0.5 | 5.5-8.0 | 1.5-2.5 | HMDS |
| XYSIL® R170H | 170 ± 20 | ≤ 0.7 | 3.7-4.5 | 0.7-1.5 | DDS |
| XYSIL® R210 | 210 ± 20 | ≤ 0.5 | 7.0-8.5 | 3.5-6.5 | – |
| XYSIL® R230 | 260 ± 20 | ≤ 0.5 | 5.5-8.0 | 2.5-4.0 | HMDS |
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