I-Helium (He) , I-Rare Gas, Ibanga Lokuhlanzeka Okuphezulu
Ulwazi Oluyisisekelo
I-CAS | 7440-59-7 |
EC | 231-168-5 |
UN | 1046 (Icindezelwe); 1963 (Okuketshezi) |
Iyini le nto?
I-Helium iyigesi engenambala, engenaphunga, enganambitheki futhi elula kunomoya. Esimeni sayo semvelo, i-helium ivamise ukuba khona ngamanani amancane emkhathini woMhlaba njengegesi. Kodwa-ke, ikhishwa kakhulu emithonjeni yegesi yemvelo, lapho ikhona ezindaweni eziphakeme kakhulu.
Isetshenziswa kuphi le nto ?
Amabhaluni Wokungcebeleka: I-Helium ngokuyinhloko isetshenziselwa ukufutha amabhaluni, iwenze antante emoyeni. Lokhu ukukhetha okudumile kwemikhosi, amaphathi nemicimbi.
Amabhaluni Wesimo Sezulu: Amabhaluni esimo sezulu agcwele i-helium asetshenziselwa ukuqoqa idatha yomkhathi ezifundweni zesimo sezulu nesimo sezulu. Qaphela ukuthi izicelo ezithile kanye nemithethonqubo yokusetshenziswa kwe-helium ingahluka ngezwe, izimboni nenjongo.
Imikhumbi-moya: Izakhiwo ezilula kunomoya ze-helium ziyenza ifanelekele ukuphakamisa imikhumbi yomoya kanye nezinto ezisetshenziswayo. Lezi zimoto zivame ukusetshenziswa ekukhangiseni, ekuthwebuleni izithombe zasemoyeni kanye nocwaningo lwesayensi.
I-Cryogenics: I-Helium isetshenziswa njengesipholile ezinhlelweni ze-cryogenic. Inesibopho sokugcina ucwaningo lwesayensi, imishini yokuthwebula izithombe zezokwelapha (njengezikena ze-MRI) kanye nozibuthe abakhulu be-superconducting kubanda.
Ukushisela: I-Helium ijwayele ukusetshenziswa njengegesi evikelayo ezinqubweni zokushisela i-arc njengegesi ye-tungsten inert (TIG). Isiza ukuvikela indawo yokushisela kumagesi asemoyeni futhi ithuthukise ikhwalithi yokushisela.
Ukutholwa Kokuvuzayo: I-Helium isetshenziswa njengegesi yokulandela umkhondo ukuthola ukuvuza kumasistimu ahlukahlukene njengamapayipi, amasistimu e-HVAC, nezisetshenziswa zesiqandisi. Izitholi zokuvuza kwe-Helium zisetshenziselwa ukukhomba ngokunembile nokuthola ukuvuza.
Izingxube zokuphefumula: Abatshuzi kanye nosomkhathi bangasebenzisa izingxube ze-heliox, njenge-heliox ne-trimix, ukugwema imiphumela engemihle yokuphefumula umoya onomfutho ophezulu ekujuleni noma emkhathini.
Ucwaningo lwesayensi: I-Helium isetshenziswa ocwaningweni oluhlukahlukene lwesayensi nasezinsizeni zocwaningo, okuhlanganisa i-cryogenics, ukuhlolwa kwempahla, i-spectroscopy ye-nuclear magnetic resonance (NMR), kanye negesi ethwalayo ku-gas chromatography.
Qaphela ukuthi izinhlelo zokusebenza ezithile kanye nemithethonqubo yokusetshenziswa kwalesi sisetshenziswa/umkhiqizo ingahluka ngezwe, izimboni nenjongo. Hlala ulandela imihlahlandlela yokuphepha futhi uxhumane nochwepheshe ngaphambi kokusebenzisa le nto/umkhiqizo kunoma yiluphi uhlelo lokusebenza.