抄録
The surface-treatment of the oxide powders, especially, the surface-treatment with the various kinds of alcohol and the surface properties of the surface-treated oxide powders has been reviewed on the following point of view: 1. the procedure of the surface-treatment and their examples, 2. the extent of surface-treatment and its effect, 3. the effect of surface-treatment on the surface properties of the substrate i.e., original silica gel, 4. the thermal properties of the surface groups, 5. the reaction mechanism of alcohol with the surface silanol and 6. possibility of application of the procedure of surface-treatment and of the application of oxide powders treated with alcohol.