INSERTION OF CHLORINE IN GRAPHITE

The action of liquid chlorine on graphite has been studied by gravimetric, dilatometric and radiocrystallographic means. Around -20°C and according to the nature of the graphite, the compounds C12Cl and C16Cl corresponding to stages 3 and 4 respectively, were obtained. The interplanar distance is practically double that of pure graphite or 6.70 Å. The intercalation involves a decrease in electrical resistivity in the direction parallel to the layers comparable to that observed for bromine. It was not possible to prepare compounds richer in chlorine by cooling to -40 and -78°C. © 1979.