We previously reported similar experiments for graphite and graphene NPs, but at different TNP and/or PO2 values, therefore to facilitate comparisons with other carbon NPs, new graphite NP experiments were done under conditions identical to those in Figs. and, one of which is shown in Fig. . Because the kinetics were so complex, different fit line and symbol colors have been used instead of Roman numerals to help associate the M vs. time data in Fig. = 0.45 Da/sec/nm 2 ), cooled to <1300 K for Q-stepping, then held at 1500 K for the rest of the experiment. After measuring Rbase at 1500 K (6.4 x 10 -3 Da/sec/nm 2 ), 4.3 x 10 -5 Torr of O2 was added, resulting in a first wave of fast oxidative mass loss (red fit lines and symbols) that did not end until M had decreased by ~37%. EEO2 was initially ~8.8 x 10 -4 Da/O2 collision, but increased by a factor of ~4 as M decreased by ~10%, then slowly dropped back to near the initial value over a 4 hour period, with minor (~3x) oscillations. This first wave ended at ~6 hours when EEO2 dropped by a factor of ~30, with M remaining near ~22 MDa for ~3 hours. Similar behavior was seen for graphite NPs previously, but we allowed this experiment to continue, resulting in two additional etching waves (cyan and yellow lines and symbols) each lasting about an hour. The carbon black and graphene oxide NPs in Figs. and also had additional etching waves, however, for graphite, EEO2 during the 2 nd and 3 rd waves reached values up to 25 times higher than the initial EEO2, and in the 2 nd wave there were pronounced rate oscillations (see inset). The 2 nd and 3 rd waves removed ~7 and ~2 MDa, corresponding to ~20% and ~6% of the initial mass, respectively, and the fluctuations during the 2 nd wave each removed between 2% and 16% of the NP mass at the time, corresponding to ~0.5 to a few MLs' worth of material. The 3 rd wave ended at ~11 hours, when EEO2 sat below 10 -6 Da/O2 collision for more than 10 hours, during which the mass decreased by ~80 kDa, as indicated by the blue points in Fig. at ~12.42 and ~12.34 MDa. At this point, the NP had lost ~66% of its initial mass.