| abstract |
Silylated silica with a density of SiOH per nm 2 less than 0.6 based on the surface according to the BET method (DIN 66131 and 66132). Furthermore, the invention relates to a process for the production of silylated silica, the production process taking place in 3 successive separate steps, each taking place in a separate vessel: (1) loading the hydrophilic starting silica with silylating agent, (2) reaction of the hydrophilic silica with the silylating agent and (3) Purification of the hydrophilic silica from the silylating agent and side reaction products. |