Khoom
Lanthhanum; Cas.: 7439-91-0
Txhais lus hais tias: Lanthhanum
Cov Khoom Muaj Tshuaj Ntawm Lanthhanum
Winds Ntag / Xim: Khoom
● Melting point: 920 ° C (Lit.)
● Bowing taw tes: 3464 ° C (Lit.)
● Psa:0.00000
● Ceev: 6.19 G / ml ntawm 25 ° C (Lit.)
● LogP: 0.00000
It Hydrogen BRonor pub nyiaj: 0
Hydrogen BRRong tau txais kev lees paub suav: 0
Resetable Kev Muab Kev Rotatable Caud suav (0
● Muaj tseeb tiag tiag tiag: 138.906363
● Hnyav Hum Hum: 1
● Cov lus tsis zoo: 0
Cov Ntaub Ntawv Safty
● POTOSSGRAM (S):
F,
T
● Cov kab mob txaus ntshai: f, t
Zoo siv
Tshuaj lom neeg:Cov hlau -> Ntiaj Teb Cov Hlau
Canonical luag nyav:[La]
Tsis ntev los no ClinialTs:Truncal Alpected Cov Cheeb Tsam Kev Ua Yeeb Yam Hauv Cheeb Tsam Kev Cog Lus Rau Kev Ua Lag Luam thiab Kev Kho Mob ntawm Kev Lag Luam Tsis Siv Neeg Lub Tshuab
Tsis ntev los no Niph chaw kuaj mob:Kev ua tau zoo thiab kev nyab xeeb ntawm SuCroferric Oxyhydresdroxide ntawm Hemodialysis Cov Neeg Mob
Cov lus qhia ntxaws ntxaws
Lus qhiaYog cov tshuaj lom neeg nrog rau lub cim LA thiab atomic naj npawb 57. Nws yog cov pab pawg hu ua lub rooj zaum ntawm 15 hom hlau nyob hauv qab cov khoom sib txuas.
Lanthhant tau pom thawj zaug xyoo 1839 los ntawm tus kws kho mob Swedish Carl Gustaf Alander thaum nws cais nws los ntawm cerium nitrate. Nws lub npe los ntawm Greek lo lus "Lanthathein," uas txhais tau tias "dag zais" raws li Lanthhanum feem ntau pom ua ke nrog lwm cov khoom hauv ntau yam merals.
Hauv nws daim ntawv ntshiab, Lanthant yog qhov muag muag, silvery-dawb hlau uas yog reactive heev thiab yooj yim oxidized hauv huab cua. Nws yog ib qho ntawm qhov tsawg tshaj plaws ntawm cov lus qhia ntawm cov lus qhia kev tab sis muaj ntau dua li cov ntsiab lus xws li kub lossis platinum.
Lanthhant yog feem ntau tau txais los ntawm cov zaub mov xws li monazite thiab bastnäsite, uas muaj kev sib xyaw ntawm cov av tsis tshua muaj neeg tsawg.
Lanthhanum muaj ob peb yam khoom siv uas ua rau nws muaj txiaj ntsig hauv ntau yam kev siv. Nws muaj qhov tseem ceeb melting taw tes thiab tuaj yeem tiv taus ntau qhov kub, uas ua rau nws siv rau hauv cov phiaj xwm kev ua yeeb yam, thiab lwm yam kev siv rau kev ua kom muaj teeb meem. Nws tseem siv nyob rau hauv kev tsim cov cuab yeej txheej txheem Cathode) rau TV thiab cov saib xyuas computer.
Tsis tas li ntawd, Lanthhanum yog siv nyob rau hauv lub tshav pob ntawm catalysis, qhov uas nws tuaj yeem txhim kho cov haujlwm ntawm qee cov catalysts siv hauv kev siv tshuaj lom neeg. Nws kuj tau pom cov ntawv thov hauv kev tsim cov hybrid lub tsheb roj teeb, thiab cov khoom siv sib ntxiv hauv iav thiab cov khoom sib ntxiv hauv cov khoom sib txuas thiab kev tiv thaiv kom tawg.
Lanthalhanum tebchaw yog siv nyob rau hauv cov tshuaj ib yam nkaus. Lanthhanum carbonate, piv txwv li, tuaj yeem sau tseg los ua phosphate phau ntawv los pab tswj cov kab mob siab rau cov ntshav ntawm lub raum. Nws ua haujlwm los ntawm kev khi rau phosphate hauv cov hnyuv, tiv thaiv nws txoj kev nqus mus rau hauv cov hlab ntshav.
Zuag qhia tag nrho, lanthhanum yog ib qho kev siv ntau yam nyob hauv kev lag luam xws li teeb pom kev zoo, catalysis, khoom siv science, thiab tshuaj kho mob. Nws cov khoom tshwj xeeb thiab kev cuam tshuam ua rau nws muaj nuj nqis nyob rau ntau hom kev tshawb fawb thiab science.
Daim ntawv thov
Lanthhant muaj ob peb daim ntawv thov hla ntau yam kev lag luam vim nws cov khoom tshwj xeeb:
Teeb pom kev zoo:Lanthhanum yog siv nyob rau hauv kev lag luam ntawm cov carbon teeb, uas siv nyob rau hauv zaj duab xis, thiab kev teeb pom kev zoo, thiab kev tshawb nrhiav thiab kev tshawb nrhiav. Cov teeb no tsim lub teeb ci ntsa iab, ua rau lawv haum rau cov ntawv thov uas yuav tsum tau siv cov khoom siv kom zoo.
Cov Khoom Siv Hluav Taws Xob:Lanthhanum yog siv nyob rau hauv kev tsim cov leeg ntxig (CRTS) rau TV thiab cov saib xyuas computer. CRTS siv hluav taws xob nqaj kom tsim cov duab ntawm lub vijtsam, thiab cov lus qhia ua haujlwm hauv cov khoom siv hluav taws xob hluav taws xob ntawm cov khoom siv hluav taws xob.
Roj teeb:Lanthhant yog siv hauv kev tsim cov nickel-hlau hydride (Nimh) roj teeb, uas yog siv nyob rau hauv hybrid fais fab tsheb (hevs). Lanthhanum-Nickel alloys yog ib feem ntawm lub roj teeb tsis zoo electrode, pab txhawb nws qhov kev ua tau zoo thiab muaj peev xwm.
Optics:Lanthhanum yog siv nyob rau hauv kev tsim cov khoom muag tshwj xeeb optical lenses thiab tsom iav. Nws tuaj yeem txhim kho cov ntsuas hluav taws xob kom tsis txhob muaj cov ntaub ntawv no, ua rau lawv muaj txiaj ntsig hauv cov ntawv thov xws li cov koob yees duab lo ntsiab muag thiab lub tsom iav.
Automotive catalysts:Lanthhant yog siv los ua kev sib xyaw ua ke hauv cov tso pa tawm ntawm tsheb. Nws pab hloov kho cov pa hluav taws, xws li nitrogen oxides (NOx), carbon monoxide (CC), thiab cov tshuaj hydrocarbons (Hydrocarbons (Hydrocarbons (HOLCORCARBON
Iav thiab Ceramics:Lanthhanum oxide yog siv los ua kev ntxiv nyob rau hauv cov khoom tsim ntawm cov iav thiab cov khoom siv ceramic. Nws imparts zoo heev thaum tshav kub kub thiab kev poob siab tsis kam muaj zog, ua cov khoom kawg ntau ruaj khov thiab tsawg dua siab rau kev puas tsuaj.
Daim ntawv thov tshuaj:Lanthalhanum tebchaw, xws li cov tshuaj ua kom zoo li cov tshuaj raws li phosphate binders hauv kev kho mob ntawm cov neeg mob nrog mob raum. Cov tebchaw khi rau hauv phosphate hauv kev zom zaub mov, tiv thaiv nws qhov nqus mus rau hauv cov hlab ntshav.
Metallurgy: Lanthhanum tuaj yeem muab ntxiv rau qee cov alloys txhawm rau txhim kho lawv lub zog thiab qhov kub siab tiv thaiv. Nws yog siv nyob rau hauv kev tsim cov hlau me me thiab alloys rau cov ntawv thov xws li aerospace thiab kev ua haujlwm siab.
Cov no tsuas yog qee qhov piv txwv ntawm cov ntawv thov hauv Lanthalhan. Nws cov khoom tshwj xeeb ua rau nws muaj txiaj ntsig zoo hauv ntau yam lag luam, ua rau muaj kev lag luam, ua rau nce qib hauv thev naus laus zis, lub zog, thiab kev kho mob.
