I-acetylene inomkhawulo weziqhumane kusukela 2.3% ku 72.3%, kuyilapho umkhawulo wokuqhuma kwe-hydrogen usuka 4% ku 74.2%.
Njengoba kunikezwe ukuthi ububanzi beziqhumane ze-acetylene bubanzi kune-hydrogen, yenza i-hydrogen ibe yingozi kakhulu uma iqhathaniswa.