Ngozi inosanganisirwa nemethane yakakura zvakanyanya, inoenderana nehuwandu hwayo hwehydrogen, izvo zvinoita kuti isunungure huwandu hwakawanda hwekupisa hunoenderana nehuremu hwayo.
Acetylene, pane rimwe divi, yakapfuma mucarbon, predisposing it to smoke formation. Izvi zvinogona kukanganisa maitiro ekupisa uye kupikisa kusimba kwemaketani maitiro.