Helium qib A thiab helium qib B yog cov roj av nrov, cov yam ntxwv tshwj xeeb ntawm kev tso cai rau lawv siv ntau yam kev siv. Lawv sib txawv ntawm txhua lwm yam hauv cov yam ntxwv thiab ua tau.
Yam ntxwv
Helium tuaj yeem pom cov roj ntsha monoatomic inert. Nws yog qhov nyuaj heev kom tau txais cov ntawv ua kua los yog ua kua ntawm helium; yog li ntawd, feem ntau ntawm nws cov lus teb muaj nyob rau hauv daim ntawv gaseous thiab tsis tshua ruaj khov.
Piv txwv, muaj ob daim ntawv ntawm helium: qib A thiab qeb B. Lawv txawv ntawm txhua lwm yam hauv qhov huv huv ntawm cov roj. Peb tuaj yeem hais tias A qib helium yog qib thib ib, thiab B qib helium yog qib thib ob. Helium ntawm qib A yog tsim tawm raws li qhov yuav tsum tau muaj ntau dua, yog li cov ntim feem ntawm helium ntshiab yog 99.995%. Hauv kev lag luam ntawm hom B, tus lej no tsawg dua - 99.99%.
Gaseous helium ntawm qeb A muaj qhov tsis zoo ntawm nitrogen, hydrogen, oxygen, neon thiab argon 0, 005% thiab 0, 01%. Xws li cov nyiaj me me tuaj yeem tshem tawm ntawm helium, uas yog, nws tuaj yeem tso rau ntawm qhov chaw ua haujlwm tsis muaj kev cuam tshuam rau cov txheej txheem thev naus laus zis, lossis tshem tawm los ntawm peb tus kheej cov kev tu cev.
Tib yam muaj peev xwm hais txog qib B, txawm li cas los xij, nws yuav tsum tau yug los rau hauv lub siab tias lub ntim feem ntawm cov tshuaj, piv txwv li, nitrogen, hydrocarbons thiab neon, muaj ntau dua nyob rau hauv cov ntaub ntawv ntawm qeb A, uas nqaim cov kev txwv ntawm xws li helium Cov.
Thov
Qhov ntau ntawm kev thov qib A helium yog qhov dav dua li ntawm qib B. Cov pa oxygen nyob rau hauv cov huab cua tsis muab txoj hauv kev rau kev coj cov tshuaj lom neeg nrog rau qhov yuav tsum tau muaj. Yog li hais tias cov tshuaj uas koj tab tom nrhiav kom tsis haum rau hauv cov pa cua, nws yog ib qho tseem ceeb los tsim qee yam kev mob, uas yuav pab ua kom nws ua tiav qib A helium hauv thooj voos kheej kheej. Nws yog dav siv raws li inert nruab nrab nyob rau hauv thiaj li yuav nqa tawm vuam ua hauj lwm nrog hlau refractory. Ntxiv rau, cov khoom siv no tuaj yeem yog ib puag ncig-tsim hauv cov organic synthesis. Helium tuaj yeem siv hauv cov tshuaj, raws li, nrog cov pa oxygen, nws txo cov kev tawm tsam hauv asthmatics.
Cov roj inert yuav luag insoluble hauv dej, yog li nws tau siv thaum ua haujlwm ntawm qhov tob tob. Helium qib A txuag ntau yam los ntawm kev decompression. Nws kuj tseem siv rau hauv kev lag luam khoom noj khoom haus ntxiv rau kev khaws cia, uas yuav pab cov khoom kom tsis txhob poob lawv qhov qub aroma thiab saj.
Qhov ntau ntawm daim ntawv thov ntawm B qib helium tsis yog dav heev. Nws yog tsuas yog siv los ua lub tshuab zais pa. Nws yog lub koom haum pabcuam ntawm cov khoom dai kom zoo nkauj, vim nws muaj peev xwm hloov chaw nyob hauv chav tsev thiab tsim kom muaj kev lom zem zoo nkauj nyob rau hauv qhov chaw qhib cua. Daim ntawv no ntawm helium tso cai rau koj dai rau kev ua koob tsheej. Txawm hais tias helium qeb A thiab helium qib B sib txawv ntawm ib leeg, txhua tus muaj cov yam ntxwv uas tuaj yeem siv rau ntau qhov chaw ntawm lub neej txhua hnub.
