Xov xwm
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Txheem roj
"Standard gas" yog ib lo lus hauv kev lag luam roj. Nws yog siv los ntsuas cov ntsuas ntsuas, ntsuas cov txheej txheem ntsuas, thiab muab cov qauv ntsuas rau cov qauv ntsuas tsis paub. Standard gases muaj ntau yam kev siv. Feem ntau ntawm cov pa roj thiab cov roj tshwj xeeb yog siv rau hauv ...Nyeem ntxiv -
Tuam Tshoj tau tshawb pom cov khoom siv qib siab helium dua
Tsis ntev los no, Haixi Prefecture Natural Resources Bureau ntawm Qinghai Xeev, ua ke nrog Xi'an Geological Survey Center ntawm Tuam Tshoj Geological Survey, Lub Chaw Tshawb Fawb Roj thiab Roj thiab Lub Tsev Kawm Ntawv ntawm Geomechanics ntawm Suav Academy ntawm Geological Sciences, tau tuav ib lub sympo. ...Nyeem ntxiv -
Kev tsom xam kev lag luam thiab kev loj hlob zeem muag ntawm chloromethane
Nrog kev txhim kho tsis tu ncua ntawm silicone, methyl cellulose thiab fluororubber, kev ua lag luam ntawm chloromethane txuas ntxiv txhim kho Cov Khoom Txheej Txheem Methyl Chloride, tseem hu ua chloromethane, yog cov organic compound nrog cov tshuaj formula CH3Cl. Nws yog ib qho tsis muaj xim tsis muaj roj nyob hauv chav tsev kub thiab siab...Nyeem ntxiv -
Excimer laser gases
Excimer laser yog ib hom ultraviolet laser, uas yog feem ntau siv nyob rau hauv ntau lub teb xws li chip manufacturing, ophthalmic phais thiab laser ua. Chengdu Taiyu Gas tuaj yeem tswj qhov sib piv kom ua tau raws li cov qauv kev ua haujlwm ntawm laser, thiab peb lub tuam txhab cov khoom tau siv rau ...Nyeem ntxiv -
Unveiling qhov txuj ci tseem ceeb ntawm kev tshawb fawb ntawm hydrogen thiab helium
Yog tias tsis muaj cov thev naus laus zis ntawm cov kua hydrogen thiab kua helium, qee qhov chaw tshawb fawb loj yuav yog pawg ntawm cov hlau seem… Cov kua hydrogen thiab kua helium tseem ceeb npaum li cas? Yuav ua li cas cov kws tshawb fawb Suav yeej kov yeej hydrogen thiab helium uas tsis tuaj yeem ua liquefy? Txawm nyob hauv qeb ntawm qhov zoo tshaj plaws ...Nyeem ntxiv -
Feem ntau siv hluav taws xob tshwj xeeb roj - nitrogen trifluoride
Feem ntau fluorine-muaj cov roj hluav taws xob tshwj xeeb suav nrog sulfur hexafluoride (SF6), tungsten hexafluoride (WF6), carbon tetrafluoride (CF4), trifluoromethane (CHF3), nitrogen trifluoride (NF3), hexafluoroethane (C2F6) thiab octafluoropropane (C3F8). Nrog rau kev loj hlob ntawm nanotechnology thiab ...Nyeem ntxiv -
Cov yam ntxwv thiab kev siv ntawm ethylene
Cov tshuaj formula yog C2H4. Nws yog ib qho yooj yim chemical raw khoom rau hluavtaws fibers, hluavtaws roj hmab, hluavtaws plastics (polyethylene thiab polyvinyl chloride), thiab hluavtaws ethanol (cawv). Nws kuj yog siv los ua vinyl chloride, styrene, ethylene oxide, acetic acid, acetaldehyde, thiab expl ...Nyeem ntxiv -
Krypton muaj txiaj ntsig zoo
Krypton yog ib qho tsis muaj xim, tsis muaj ntxhiab, tsis muaj roj inert, txog ob zaug hnyav li huab cua. Nws tsis muaj zog heev thiab tsis tuaj yeem hlawv lossis txhawb kev sib txuas. Cov ntsiab lus ntawm krypton hauv huab cua yog tsawg heev, tsuas yog 1.14 ml ntawm krypton hauv txhua 1m3 ntawm huab cua. Kev lag luam daim ntawv thov ntawm krypton Krypton muaj ib qho tseem ceeb ...Nyeem ntxiv -
High-purity xenon: nyuaj rau tsim thiab irreplaceable
High-purity xenon, ib tug inert roj nrog ib tug purity tshaj 99.999%, plays lub luag hauj lwm tseem ceeb nyob rau hauv kev kho mob imaging, high-end teeb pom kev zoo, lub zog cia thiab lwm yam teb nrog nws cov xim thiab tsis muaj ntxhiab, siab ceev, tsawg boiling point thiab lwm yam khoom. Tam sim no, lub ntiaj teb high-purity xenon ua lag luam co ...Nyeem ntxiv -
Dab tsi yog silane?
Silane yog ib qho kev sib xyaw ntawm silicon thiab hydrogen, thiab yog lub ntsiab lus dav dav rau cov khoom sib txuas. Silane feem ntau suav nrog monosilane (SiH4), disilane (Si2H6) thiab qee cov qib siab ntawm silicon hydrogen compounds, nrog rau cov qauv dav dav SinH2n + 2. Txawm li cas los xij, hauv kev tsim khoom tiag tiag, peb feem ntau xa mus rau monos ...Nyeem ntxiv -
Txheem roj: lub hauv paus ntawm kev tshawb fawb thiab kev lag luam
Nyob rau hauv lub ntiaj teb loj ntawm kev tshawb fawb thiab kev tsim khoom lag luam, cov pa roj carbon monoxide yog zoo li tus neeg nyob ntsiag to tom qab ntawm qhov xwm txheej, ua lub luag haujlwm tseem ceeb. Nws tsis tsuas yog muaj ntau yam kev siv, tab sis kuj qhia tau hais tias muaj kev vam meej hauv kev lag luam. Standard gas yog ib tug roj sib tov nrog ib tug paub tseeb concen ...Nyeem ntxiv -
Yav dhau los siv los tshuab balloons, helium tau dhau los ua ib qho ntawm cov khoom siv tsis tshua muaj hauv ntiaj teb. Dab tsi yog siv helium?
Helium yog ib qho ntawm ob peb cov pa roj uas sib zog dua huab cua. Qhov tseem ceeb tshaj, nws yog qhov ruaj khov, tsis muaj xim, tsis muaj ntxhiab thiab tsis muaj teeb meem, yog li nws yog qhov kev xaiv zoo heev los siv nws los tshuab nws tus kheej ntab balloons. Tam sim no helium feem ntau hu ua "gas rare earth" los yog "golden gas". Helium yog ...Nyeem ntxiv
