Praseodymium nyob qhov twg hauv qhov xwm txheej?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Praseodymium feem ntau yog pom tsuas yog nyob rau hauv ob hom sib txawv ntawm ores. Cov lag luam loj ore nyob rau hauv uas praseodymium yog pom yog monazite thiab bastnasite. Cov chaw mining tseem ceeb yog Tuam Tshoj, Tebchaws Asmeskas, Brazil, Is Nrias teb, Sri Lanka thiab Australia.

Kuj paub yog, praseodymium pom li cas?

Hnub no, praseodymium Feem ntau tau txais los ntawm kev sib pauv ion los ntawm monazite xuab zeb ((Ce, La, Th, Nd, Y) PO₄), cov khoom uas nplua nuj nyob hauv lub ntiaj teb tsis tshua muaj cov ntsiab lus. Praseodymium cov Kev siv thawj zaug yog ua tus neeg sawv cev alloying nrog magnesium los tsim cov hlau muaj zog uas siv hauv cov tshuab dav hlau.

Tsis tas li ntawd, thaum twg thiab qhov twg tau pom praseodymium? Praseodymium thawj zaug pom nyob rau xyoo 1885, hauv Vienna, los ntawm Austrian tus kws tshawb fawb Carl Auer von Welsbach. Nws yog nrhiav pom Nyob rau hauv 'didymium' ib yam khoom tsis raug hais los ntawm Carl Mosander los ua lub ntsiab lus tshiab hauv xyoo 1841.

Ua raws li qhov xav tau, praseodymium siv li cas hauv lub neej txhua hnub?

Praseodymium feem ntau yog siv ua tus neeg sawv cev alloying nrog magnesium los tsim cov hlau muaj zog siv nyob rau hauv aircraft engine. Nws tseem yog ib feem ntawm mischmetal, ib yam khoom uas yog siv ua flints rau lighters, thiab nyob rau hauv carbon arc teeb, siv nyob rau hauv kev lag luam daim duab rau studio teeb pom kev zoo thiab projector teeb.

Puas muaj praseodymium nyob rau hauv lub ntiaj teb crust?

Praseodymium yog cov khoom siv tshuaj nrog lub cim Pr thiab atomic tooj 59. Praseodymium ib txwm tshwm sim lawm ua ke nrog rau lwm yam tsawg- ntiaj teb hlau. Nws yog plaub yam uas tsis tshua muaj- ntiaj teb element, ua 9.1 qhov chaw ib lab ntawm cov Lub ntiaj teb crust , ib qho kev nplua nuj zoo ib yam li cov boron.