Praseodymium tau muab npe tom qab ob lo lus Greek, 'prasios', txhais tau tias ntsuab (xws li ntsuab xim ntawm nws cov oxide) thiab 'didymos', txhais tau tias ntxaib. Praseodymium tsuas pom muaj nyob rau hauv ob hom ore, uas yog monazite thiab bastnasite, nyob rau hauv Tuam Tshoj, Tebchaws USA, Brazil, India, Sri Lanka thiab Australia.
praseodymium feem ntau pom nyob qhov twg?
Praseodymium feem ntau pom tsuas yog hauv ob hom ores sib txawv. Cov khoom lag luam loj uas pom praseodymium yog monazite thiab bastnasite. Cov chaw mining tseem ceeb yog Tuam Tshoj, Tebchaws Asmeskas, Brazil, Is Nrias teb, Sri Lanka thiab Australia.
lub teb chaws twg praseodymium tuaj ntawm?
Discovery: Swedish chemist Carl Gustav Mosander hauv xyoo 1841 tau rho tawm lub ntiaj teb tsis tshua muaj oxide residue nws hu ua Didymium los ntawm cov seem uas nws hu ua "lantana." Xyoo 1885, Austrian chemist Baron Carl Auer von Welsbach cais Didymium rau hauv ob lub ntsev ntawm cov xim sib txawv, uas nws hu ua praseodymium, npe rau nws cov xim ntsuab, thiab …
Puas yog praseodymium pom nyob rau hauv qhov?
Natural abundance
Praseodymium tshwm sim nrog rau lwm yam lanthanide ntsiab nyob rau hauv ntau yam minerals. Ob qhov chaw tseem ceeb yog monazite thiab bastnaesite. Nws yog muab rho tawm los ntawm cov zaub mov no los ntawm kev sib pauv ion thiab hnyav rho tawm. Praseodymium hlau yog npaj los ntawm kev txo cov anhydrous chloride nrog calcium.
Puas yog praseodymium tsawg lossis ntau?
Praseodymium ib txwm tshwm sim ib txwm ua ke nrog lwm cov hlau tsis tshua muaj hauv ntiaj teb. Nws yog thib plaub feem ntau tsis tshua muaj ntiaj teb, ua 9.1 feem ntawm ib lab ntawm lub ntiaj teb crust, ib qho kev nplua nuj zoo ib yam li cov boron.
