Rare ntiaj teb cov ntsiab lus suav nroglanthanum(La),cerium(Ce),praseodymium(Pr),neodymium(Nd), promethium (Pm),samarium(Sm),europium(Eu),gadolinium nyob rau hauv cov ntshav(Gd),terbium(Tb),dysprosium(Dy),holmium(Ho),erbium(Er),thulium(Tm),ytterbium(ywb),lutetium(Lu),scandium(Sc), thiabyttrium(Y).Lub npe Askiv yogLub ntiaj teb tsis tshua muaj.Lub ntiaj teb tsis tshua muajCov hlau feem ntau yog mos, malleable, thiab ductile, thiab nthuav tawm tshwj xeeb muaj zog reactivity raws li cov hmoov ntawm qhov kub thiab txias.Cov hlau no muaj cov tshuaj lom neeg muaj zog heev thiab muaj kev sib raug zoo rau hydrogen, carbon, nitrogen, oxygen, sulfur, phosphorus, thiab halogens.Lawv yooj yim oxidized hauv huab cua, thiab hnyavtsawg ntiaj tebtuaj yeem tsim oxidation tiv thaiv txheej rau ntawm qhov chawscandiumthiabyttriumntawm chav tsev kub.Yog li ntawd,tsawg ntiaj teb hlauFeem ntau yog khaws cia rau hauv kerosene lossis hauv cov ntim ntim ntim nrog lub tshuab nqus tsev thiab argon gas.Tsis tshua muaj ntiaj tebcov ntsiab lus tuaj yeem muab faib ua ob pawg: lub teebtsawg ntiaj tebthiab hnyavtsawg ntiaj teb, feem ntau muaj nyob rau hauv daim ntawv ntawmtsawg ntiaj teb oxides.Tuam Tshoj, Russia, Tebchaws Asmeskas, Australia thiab lwm lub tebchaws muaj ntau tshaj plaws reserves ntawmtsawg ntiaj tebh cov peev txheej hauv ntiaj teb.Tsis tshua muaj ntiaj tebFeem ntau yog siv rau hauv kev lag luam xws li roj av, tshuaj engineering, metallurgy, textiles, ceramic iav, cov khoom siv hlau nplaum ruaj khov, thiab lwm yam. cov khoom siv hlau zoo kawg nkaus.
Post lub sij hawm: Nov-03-2023