Abstract
The extent of chemically detectable acidic surface oxides on graphite has been compared to the total coverage of the surface with oxide. Evolved gas analysis techniques using a mass spectrometer have been used to determine the composition of the gases evolved (CO, CO 2, H 2 and H 2O) on thermal decomposition of the surface species. The thermal stability of the acidic oxides neutralized by sodium hydroxide has been related to the oxide which on thermal decomposition yields CO 2. It appears that a large fraction of the oxide surface, probably composed of carbonyl groups yielding CO on thermal decomposition, is neutral in character
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