Ukuvutha, ebonakala ngokusabela okukhulu kwamakhemikhali okukhiqiza ukukhanya nokushisa, akuxhomekile ngaso sonke isikhathi ekubeni komoya-mpilo.
I-Magnesium iyakwazi ukuvutha ngisho naku-carbon dioxide gas;
Izinsimbi ezifana ne-aluminiyamu nethusi zingasha egesi yesulfure, ngocingo lwethusi olushisayo olukhipha into emnyama;
Emkhathini we-chlorine, izakhi ezifana i-hydrogen, ucingo lwethusi, ucingo lwensimbi, kanti i-phosphorus iyavutha, ne-hydrogen ekhipha ilangabi eliphaphathekile lapho livutha ku-chlorine.