Ubuningi bensimbi engagqwali buyi-7.7 g/cm³Uma insimbi engagqwali isetshenziswa ezinqubweni ezahlukene ezimbonini ezahlukene, kunciphisa isikhathi sokulethwa esithathwa yizingxenye ezenziwe ngensimbi engagqwali. Lokhu kungenxa yokuthi, ngenxa yokusebenzisa insimbi engagqwali, asikho isidingo sokuqeda. Insimbi engagqwali inokuguquguquka okuphezulu kanye nesilinganiso esiphezulu sokuqina komsebenzi. Insimbi engagqwali inamandla aphezulu okushisa kanye nokuqina okuphezulu kwe-cryogenic. Insimbi engagqwali itholakala ngamagremu angaphezu kuka-150, kodwa amagremu ayi-15 kuphela asetshenziswa njalo. Into enhle kakhulu ngensimbi engagqwali ukuthi ingaphinde isetshenziswe ngo-100%.