Enwere ike ire ntụ ntụ n'ime oghere

Black ntụ ntụ nwere ike ịgbanye n'ụdị oghere, na-adabere na ikuku oxygen.

Ọgaranya na potassium nitrate, nbibi ya na-atọhapụ oxygen, nke na-emeghachi omume ike na unyi na sọlfọ agbakwunyere. Mmeghachi omume siri ike a na-emepụta okpomọkụ dị ukwuu, nitrogen gas, na carbon dioxide, na-egosipụta njirimara exothermic nke ntụ ntụ.