Abstract
1. Sucrose, carbonized to the temperature of activation (850°), possesses a substantial volume of micropores inaccessible to most molecules to be adsorbed. 2. During the process of activation to a combustion loss of ∼ 35%, the volume of the transitional and micropores increases severalfold. However, the total volume of the micropores is more than 20 times as great as the volume of the transitional pores. 3. The dimensions of the micropores (radii of inertia 6–7 A) vary little within the investigated interval of combustion losses. 4. During the process of activation, two stages are distinctly revealed. In the first stage, the total volume of the micropores increases on account of burnout of the reactive amorphous mass, chiefly in the form of radicals. In the second stage, the increase in their volume results from the appearance of new micropores, formed in the burnout of the crystallites.
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