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Gadolinium: Cov hlau txias tshaj plaws hauv ntiaj teb
Gadolinium, lub caij 64 ntawm lub sijhawm teem sijhawm. Lanthanide nyob rau hauv lub sij hawm lub sij hawm yog ib tsev neeg loj, thiab lawv cov tshuaj muaj pes tsawg leeg zoo sib xws, yog li nws yog ib qho nyuaj rau cais lawv. Xyoo 1789, Finnish chemist John Gadolin tau txais cov hlau oxide thiab pom thawj lub ntiaj teb tsis tshua muaj o ...Nyeem ntxiv -
Qhov cuam tshuam ntawm Lub Ntiaj Teb Tsis tshua muaj rau Aluminium thiab Aluminium Alloys
Daim ntawv thov ntawm lub ntiaj teb tsis tshua muaj nyob rau hauv casting aluminium alloy tau nqa tawm ua ntej txawv teb chaws. Txawm hais tias Tuam Tshoj tau pib tshawb fawb thiab siv cov nam no tsuas yog nyob rau xyoo 1960, nws tau tsim sai heev. Muaj ntau txoj haujlwm tau ua los ntawm kev tshawb fawb txog kev siv tshuab mus rau kev siv tswv yim, thiab qee qhov kev ua tiav ...Nyeem ntxiv -
Dysprosium: Ua rau lub teeb ci los txhawb kev cog qoob loo
Dysprosium, lub caij 66 ntawm lub sij hawm Jia Yi ntawm Han Dynasty tau sau nyob rau hauv "Rau Kaum Qhov Kev Txhaum Cai ntawm Qin" tias "peb yuav tsum sau tag nrho cov tub rog los ntawm lub ntiaj teb, sau lawv hauv Xianyang, thiab muag lawv". Ntawm no, 'dysprosium' yog hais txog qhov kawg ntawm tus xub. Nyob rau hauv 1842, tom qab Mossander cais ib tug ...Nyeem ntxiv -
Daim ntawv thov thiab kev siv tshuab ntawm Rare Earth Nanomaterials
Tsis tshua muaj ntiaj teb cov ntsiab lus lawv tus kheej muaj cov khoom siv hluav taws xob nplua nuj thiab nthuav tawm ntau yam khoom siv kho qhov muag, hluav taws xob, thiab hlau nplaum. Tom qab lub ntiaj teb tsis tshua muaj nanomaterialization, nws nthuav tawm ntau yam ntxwv, xws li cov nyhuv me me, cov nyhuv tshwj xeeb saum npoo, cov nyhuv quantum, muaj zog kho qhov muag, ...Nyeem ntxiv -
Magical Rare Earth Compound: Praseodymium Oxide
Praseodymium oxide, molecular mis Pr6O11, molecular hnyav 1021.44. Nws tuaj yeem siv rau hauv iav, metallurgy, thiab ua ib qho ntxiv rau cov hmoov fluorescent. Praseodymium oxide yog ib qho ntawm cov khoom tseem ceeb hauv cov khoom siv hluav taws xob tsawg hauv ntiaj teb. Vim nws qhov tshwj xeeb lub cev thiab tshuaj lom neeg, nws muaj ...Nyeem ntxiv -
Txoj kev teb thaum muaj xwm ceev rau zirconium tetrachloride Zrcl4
Zirconium tetrachloride yog ib qho dawb, ci siv lead ua los yog hmoov uas ua rau deliquescence. Feem ntau siv rau hauv kev tsim cov hlau zirconium, pigments, textile waterproofing agents, tawv tanning agents, thiab lwm yam., nws muaj tej yam txaus ntshai. Hauv qab no, cia kuv qhia cov txheej txheem teb xwm txheej ceev ntawm z ...Nyeem ntxiv -
Zirconium tetrachloride Zrcl4
1, Kev taw qhia luv luv: Nyob rau hauv chav tsev kub, Zirconium tetrachloride yog cov hmoov dawb crystalline nrog cov qauv lattice teej tug mus rau lub cubic crystal system. Lub sublimation kub yog 331 ℃ thiab lub melting point yog 434 ℃. Lub gaseous zirconium tetrachloride molecule muaj tetrahedral stru...Nyeem ntxiv -
Cerium oxide yog dab tsi? Dab tsi yog nws siv?
Cerium oxide, tseem hu ua cerium dioxide, muaj cov mis mos molecular CeO2. Yuav siv tau los ua cov ntaub ntawv polishing, catalysts, UV absorbers, roj cell electrolytes, automotive pa absorbers, hluav taws xob ceramics, thiab lwm yam. Daim ntawv thov kawg hauv xyoo 2022: MIT engineers siv ceramics los ua cov roj qab zib ...Nyeem ntxiv -
Kev npaj ntawm Nano Cerium Oxide thiab nws daim ntawv thov hauv kev kho dej
CeO2 yog ib qho tseem ceeb ntawm cov ntaub ntawv tsis tshua muaj hauv ntiaj teb. Lub ntiaj teb tsis tshua muaj caij cerium muaj cov qauv hluav taws xob tshwj xeeb - 4f15d16s2. Nws tshwj xeeb 4f txheej tuaj yeem khaws thiab tso tawm cov khoom siv hluav taws xob zoo, ua rau cerium ions coj tus cwj pwm hauv lub xeev + 3 valence thiab + 4 valence xeev. Yog li, CeO2 mater ...Nyeem ntxiv -
Plaub daim ntawv thov loj ntawm nano ceria
Nano ceria yog ib qho pheej yig thiab dav siv tsis tshua muaj lub ntiaj teb oxide nrog me me particle loj, uniform particle loj faib, thiab siab purity. Insoluble hauv dej thiab alkali, me ntsis soluble hauv acid. Nws tuaj yeem siv los ua cov ntaub ntawv polishing, catalysts, catalyst carriers (additives), automotive pa nqus ...Nyeem ntxiv -
Tellurium dioxide yog dab tsi thiab siv Tellurium dioxide yog dab tsi?
Tellurium dioxide Tellurium dioxide yog ib qho inorganic compound, dawb hmoov. Feem ntau yog siv rau kev npaj tellurium dioxide ib qho crystals, infrared li, acousto-optic li, infrared qhov rais cov ntaub ntawv, cov khoom siv hluav taws xob, thiab preservatives. Lub ntim yog ntim rau hauv polyethylene ...Nyeem ntxiv -
nyiaj oxide hmoov
Silver oxide yog dab tsi? nws siv rau dab tsi? Silver oxide yog cov hmoov dub uas yog insoluble hauv dej tab sis yooj yim soluble hauv acids thiab ammonia. Nws yog ib qho yooj yim rau decompose rau hauv cov khoom siv thaum rhuab. Nyob rau hauv cov huab cua, nws absorbs carbon dioxide thiab hloov mus ua nyiaj carbonate. Feem ntau siv hauv ...Nyeem ntxiv