“…Later, it turned out, that fullerene films can be reduced, although irreversibly, in aqueous solutions, as well [17][18][19]. Various salt formation [20][21][22][23] and/or hydrogenation and oligomer formation of C 60 was reported [24][25][26]. Recently, we discovered, that in dimethylformamide + water mixtures of proper composition, C 60 could be reduced reversibly, if the solution contained potassium chloride [2].…”