Praseodymium tau tshawb pom los ntawm Carl F. Auer von Welsbach, tus kws tshuaj Austrian, xyoo 1885. Nws tau cais praseodymium, nrog rau cov khoom neodymium, los ntawm cov khoom hu ua Didymium..
Lub ntsiab lus praseodymium nrhiav tau nyob qhov twg?
Praseodymium tau tshawb pom hauv didymia, sib xyaw ntawm ntau lub ntiaj teb oxides tsawg. Los ntawm nws, los ntawm kev rov ua cov fractional crystallization ntawm ammonium didymium nitrate, Austrian chemist Carl Auer von Welsbach hauv xyoo 1885 tau cais cov ntsev ntawm cov ntsiab lus praseodymium (cov seem ntsuab) thiab neodymium (cov feem liab).
Leej twg hu ua praseodymium?
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, hu ua xim ntsuab, thiab …
Leej twg nrhiav tau neodymium?
Neodymium tau pom nyob rau hauv Vienna xyoo 1885 los ntawm Karl Auer. Nws zaj dab neeg pib nrog kev tshawb pom ntawm cerium, uas Carl Gustav Mosander tau rho tawm Didymium hauv 1839.
Cov ntsiab lus tshawb pom thiab npe li cas?
Tshiab ntsiab tuaj yeem muaj npe tom qab lub tswv yim mythological, pob zeb, qhov chaw lossis lub tebchaws, cov cuab yeej lossis tus kws tshawb fawb. … "Cov kev lig kev cai tsis ntev los no tau muab npe rau lawv tom qab qhov chaw lossis tom qab tib neeg." Cov chaw xaiv zoo li yog qhov chaw nrhiav pom lossis tsim ua ntej.
