Ngaba kukhuselekile ukusezela i-sulphur hexafluoride?
1. Ngaba i-hexafluoride inetyhefu?
Sulfur hexafluoridei-inert ye-physiologically kwaye ithathwa njengegesi engasebenziyo kwi-pharmacology. Kodwa xa iqulethe ukungcola okufana ne-SF4, iba yinto eyityhefu. Xa uphefumla ugxininiso oluphezulu lwe-SF6, iimpawu ze-asphyxia ezifana ne-dyspnea, i-wheezing, i-blue skin kunye ne-mucous membranes, kunye nokuphazamiseka ngokubanzi kunokwenzeka.
2. Ngaba i-sulphur hexafluoride iyalenza ilizwi lakho libe phantsi?
Ukutshintsha kwesandi seisulfure hexafluorideyinto echasene nokuguqulwa kwesandi se-helium, kwaye isandi sinzima kwaye siphantsi. Xa i-sulphur hexafluoride itsalwa, i-sulphur hexafluoride iya kuzalisa iintambo zezwi ezijikelezileyo. Xa sisenza isandi kunye neentambo zezwi zingcangcazela, into eqhutywa ukuba ingcangcazele asingomoya esidla ngokuwuthetha kodwa i-sulphur hexafluoride. Ngenxa yokuba ubunzima bemolekyuli yesulfure hexafluoride bukhulu kunomndilili wobunzima bemolekyuli bomoya, ukuphindaphinda kokungcangcazela kungaphantsi kunomoya, ngoko kuya kubakho isandi esinzulu nesingqindilili kunesiqhelo.
3. Lide kangakanani ixesha lokuqinisekiswa kwe-sulphur hexafluoride?
Ubomi beshelufu ngokubanzi besulphur hexafluoride microbubbles ngaphantsi kweqanda ngunyaka omnye.
4. Ingaba i-sulphur hexafluoride imbi kune-carbon dioxide?
SF6isulfure hexafluorideikwayeyona gasi yobushushu inamandla eyaziwayo. Xa kuthelekiswa ne-CO2 eqhelekileyo ye-carbon dioxide, ukuqina kwe-SF6 sulfur hexafluoride yi-23,500 ngokuphindwe kabini kune-CO2 carbon dioxide. Ukongeza, i-SF6 sulfur hexafluoride ayinakubola ngokwemvelo. Impembelelo inokuhlala iminyaka engaphezu kwewaka; iimpawu zokungabizi mali kwaye kulula ukuyisebenzisa, kunye neempawu zokukwazi ukubakho kangangamawaka eminyaka ngaphandle kokubola kwendalo, zenza le gesi ibe yeyona nto ingahoywanga kwaye ingcoliseke kakhulu "kwisizukulwana samandla aluhlaza".
5. Ingakanani i-sulphur hexafluoride enzima kunomoya esiwuphefumlayo?
Igesi ye-SF6 ayinambala, ayinalwazi, ayinatyhefu, ayinakutsha, kwaye igesi ezinzileyo. I-SF6 yigesi enzima kakhulu, emalunga namaxesha ama-5 anzima kunomoya phantsi kweemeko eziqhelekileyo.
6. Ingaba i-sulphur hexafluoride lichiza?
Iziphumo ebezingalindelekanga ze-sulphur hexafluoride kumzimba womntu zihlala zithambile kwaye zinexesha elifutshane, kwaye zinokubuyela ngokuzenzekelayo ngaphandle kwe-sequelae. I-Sulfur hexafluoride lichiza lokuxilonga elisetyenziswa kwi-ultrasound imaging examinations, i-echocardiography, kunye novavanyo lwe-vascular Doppler ukuphucula ukuchongwa kwesifo. I-Sulfur hexafluoride isetyenziselwa ukuxilongwa kwe-ultrasonic kwaye kufuneka isetyenziswe kumaziko ezonyango aneemeko ezingxamisekileyo kwaye ixhotyiswe ngabasebenzi bokuhlangula, kwaye kufuneka ifakwe ngugqirha. Ukuba ukusabela komzimba kwenzeka ngexesha okanye emva kokusetyenziswa kwe-sulphur hexafluoride, kuya kubonakala njenge-erythema yesikhumba, i-bradycardia, i-hypotension kunye ne-anaphylactic shock. Ukuba une-systemic kunye neempawu ezingathandekiyo zendawo, kufuneka ukhawuleze uxelele ugqirha okanye uye esibhedlele ukuze uhlolwe. Emva kokuthatha iyeza, kuyimfuneko ukujonga kwiziko lezonyango elichaphazelekayo kwisiqingatha seyure ukuthintela ukusabela kwe-allergies. Ukusetyenziswa kwe-sulphur hexafluoride kwizigulane ezine-cardiovascular disease kunokunyusa isifo senhliziyo.
