ABSTRACT
Historical Sketch . . . . . . . . . . . . . . . . . . . . . . . . . . . 864
Preparation and Stabilization of
Silica Hydrosols . . . . . . . . . . . . . . . . . . . . . . . . . . . 865
Preparation of Silica Gels and Powders,
Geometric Modification of Silicas, and Studies of
Structural Characteristics . . . . . . . . . . . . . . . . . . . . 866
Surface Chemistry of Amorphous Silica . . . . . . . . . 869
Investigations of Silica Surface
Processes by Physical and
Physicochemical Methods . . . . . . . . . . . . . . . . . . . 871
Physical and Chemical Adsorption . . . . . . . . . . . . . 873
Adsorption from Solutions . . . . . . . . . . . . . . . . . . . 875
Ion Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 876
Action of Ionizing Radiation and
Mechanical Activation . . . . . . . . . . . . . . . . . . . . . . 876
Silica Coatings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 877
Properties of Water in
Dispersed Silica . . . . . . . . . . . . . . . . . . . . . . . . . . . 878
Theoretical Investigations . . . . . . . . . . . . . . . . . . . . 878
Natural Mineral Sorbents . . . . . . . . . . . . . . . . . . . . 879
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 880
Research of Soviet scientists is surveyed. Contributions to various aspects of the colloid chemistry of silica
are examined: preparation and stabilization of silica hydrosols; preparation of silica gels; structural
characterization of silicas; surface chemistry elucidation; adsorption and ion-exchange property exami-
nation; and geometric and chemical modification of silicas, silica coatings, and so forth.
