The ability of some siliconates to hydrophobize and modify the surface
of different kinds of asbestos was studied. A 6 wt% aqueous solution
of potassium methylsiliconate was used in various quantities. After tr
eatment, the asbestos samples were analysed by IR-spectroscopy, TG-DTA
and electron microscopy. Structural changes were found on the asbesto
s surface, including the appearance of chemical bonds. The studies rev
ealed that the sorption and lyophilic properties of asbestos are lower
ed, these being the basic preconditions for its injurious action on he
alth.