Abstract
Pore structure of exfoliated graphite. which is responsible for sorption of various liquids, was evaluated by a mercury porosimeter. By using of a U-shape dilatometer, large pores, which seemed to correspond to the spaces among particles, were measured. The pore volume measured by this U-dilatometer was a little less than the value calculated from the theoretical density of graphite. It is worthwhile to be pointed out. however, that the pore structure determined by this U-dilatometer is closer to the real one than that by normal type dilatometer.
