It does occur naturally from high energy events like lightening strikes and bushfires and is found in
various places , in russia, india and so on in a carbon rock -shungite. But this is only in a tiny percentage
so all the C-60 on the market isn't natural C-60 but synthetic. Its normally made passing a low voltage high ampage current ( like whats used in a welding rod ) between two graphite electrodes in an inert atmosphere . The resulting soot contains C60 , C70 , higher fullerenes and junk carbon. C60 can then be separated from this by direct sublimation from the soot or more commonly with solvents such as toluene.
It does occur naturally from high energy events like lightening strikes and bushfires and is found in
various places , in russia, india and so on in a carbon rock -shungite. But this is only in a tiny percentage
so all the C-60 on the market isn't natural C-60 but synthetic. Its normally made passing a low voltage high ampage current ( like whats used in a welding rod ) between two graphite electrodes in an inert atmosphere . The resulting soot contains C60 , C70 , higher fullerenes and junk carbon. C60 can then be separated from this by direct sublimation from the soot or more commonly with solvents such as toluene.