Lanthanide
Lanthanide, Lanthhanid
Lus Txhais: Cov Ntsiab Lus 57 txog 71 hauv lub rooj ntu. Lub sij hawm dav dav rau 15 yam los ntawm kev coj los rau Lutetium. Qhia raws li LN. Lub tseem ceeb siv hluav taws xob kev teeb tsa yog 4F0 ~ 145d0 ~ 26s2, muaj rau cov kev hloov pauv sab hauv;Lus qhiaYog tsis muaj 4F hluav taws xob kuj raug tshem tawm los ntawm cov kab mob caj pas.
Kev qhuab qhia: Chemistry_ Inorganic chemistry_ cov ntsiab lus thiab Inorganic Chemistry
Cov ntsiab lus ntsig txog: hydrogen daim txhuam cev npib tsib xee-hlau roj teeb
Cov pab pawg ntawm 15 cov ntsiab lus sib xws ntawm Lanthhanum thiablitetiumNyob rau hauv lub rooj caij nyoog yog hu ua Lanthhanide. Lanthhanum yog thawj ntu hauv kev ualthanide, nrog cov cim tshuaj lom neeg La thiab Downthe tus lej 57. Txawm hais tias Lanthhanum tau cais raws li lub ntiaj teb tsis tshua muaj ntiaj teb, nws cov ntsiab lus hauv lub cev ua si 28th, yuav luag peb zaug ntawm txhuas. Lanthhant tsis muaj tshuaj lom tshwj xeeb rau tib neeg lub cev, tab sis nws muaj qee yam haujlwm tshuaj tiv thaiv kab mob.
Lanthalhanum tebchaw muaj ntau yam kev siv thiab tau siv dav hauv catalysts, carbon arc teeb hauv studio thaij duab, scintillator, gtaw hluav taws xob, thiab lwm yam khoom.
Ib qho ntawm cov ntaub ntawv siv rau npib tsib xee-hlau siv roj teeb anode yog La (NI3.6mn0.4ale0.3CO0.7). Vim tias tus nqi ntawm kev tshem tawm lwm cov lus Lanthhan, cov hlua ntshiab, yuav hloov los ntawm kev sib xyaw ntawm cov av muaj ntau dua 50% LANTHTHUM. Hydrogen ntxoo alloys muaj cov lus qhia, uas tuaj yeem khaws tau txog 400 zaug nws tus kheej ntim ntawm hydrogenption thaum lub zog tshaj tawm thiab tso tawm lub zog tshav ntuj sov. Yog li ntawd, hydrogen daim txhuam cev alloys tuaj yeem siv rau hauv lub zog txuag hluav taws xob.Lanthhanum oxidethiabLanthhanum Hexaborideyog siv los ua cov ntaub ntawv kub kub hauv electron nqus tsev. Lub Clestal ntawm Linthhantide Hexaboride yog qhov ci ntsa iab siab thiab lub neej ntev lub neej hluav taws xob tawm rau hluav taws xob micrission thiab hall-effect.
Lanthhant trifluoride yog siv raws li fuorescent lub teeb txheej, sib xyaw nrogEuropium (iii) fluoride,Thiab siv ua cov siv lead ua duab ua ntej ntawm fluoride ion xaiv electrode. Lanthhant trifluoride tseem yog ib feem tseem ceeb ntawm cov iav fluoride uas tau hu ua raulan. Nws muaj kev hloov pauv tau zoo heev nyob rau hauv infrared ntau thiab yog dav siv nyob rau hauv cov tshuab ntsuas hluav taws xob. Cerium dopedLanthhanum (III) bromidethiabLanthhanum (III) ChlorideMuaj cov khoom ntawm cov teeb pom kev zoo, kev ua kom zoo tshaj plaws thiab cov lus teb nrawm. Lawv yog inorganic scintillator cov ntaub ntawv, uas tau siv dav siv kev lag luam rau neutrons thiab γ lub ntes rau hluav taws xob. Cov iav ntxiv nrog cov olthhanum oxide tau ua siab phem thiab tsis tuaj yeem txhim kho cov alkali tsis kam ntawm cov iav. Nws tuaj yeem siv los ua cov iav tshwj xeeb, xws li cov iav nqus dej tsis haum, rau cov koob yees duab thiab lub tsom iav Temescope. Ntxiv ib qho me me ntawm cov hlua khi me me rau cov hlau tuaj yeem txhim kho nws cov kev cuam tshuam tsis kam thiab kev ntxiv dag zog thiab rhiab rau qhov kub hloov. Lanthhant thiab ntau yam sib xyaw ntawm lwm lub ntiaj teb tsis tshua muaj neeg (oxides, chlorides, thiab lwm yam) yog cov sib xyaw ua ke, xws li tawg cov tshuaj tiv thaiv catalysts.
Lanthhanum Carbonateyog pom zoo raws li ib cov tshuaj. Thaum hyperphosphatemia tshwm sim nyob rau hauv lub raum tsis ua hauj lwm, noj lusThannum carbonate tuaj yeem tswj lub phosphate hauv cov ntshav siab mus txog qib theem. LanThanum tau hloov kho Bentonite tuaj yeem tshem tawm phosphate hauv dej kom tsis txhob eutrophication ntawm pas dej pas dej. Ntau cov khoom ua luam dej pas dej muaj cov khoom lag luam me me, uas tseem yuav tshem tawm phosphate thiab txo algae kev loj hlob. Zoo li horseradish peroxidase, lanthhanum yog siv ua hluav taws xob ntom ntom hauv molecular biology.
Lub sij hawm Post: Lub Yim Hli 01-2023