Cov ntaub ntawv Niobium Element

Ib qho khoom siv hlau. Niobium absorbs gases, yog siv los ua tus neeg sawv cev degassing thiab yog superconductor zoo. Lub npe qub "columbium". Chemical symbol Nb, atomic number 41, atomic weight 92.90638, belongs to the Periodic System V B. Nyob rau xyoo 1801, British Charles-Hatchett (Charles-Hatchett) hauv kev kawm ntawm British Tsev khaws puav pheej hauv London hauv sau los ntawm columbite nyob rau hauv kev sib cais ntawm ib tug tshiab lub caij ntawm oxide, thiab lub npe hu ua lub caij rau columbium (tus txhais lus Suav ntawm columbium). 1802 Sweden AG Ökberg nyob rau hauv lub tantalite nyob rau hauv lub Swedish AG Ökberg nyob rau hauv lub columbite, thiab muab lub npe lub caij rau lub columbium. Xyoo 1802, AG Ökberg ntawm Sweden tau pom lwm lub ntsiab lus tshiab, tantalum, hauv tantalite, thiab vim hais tias ob lub ntsiab lus zoo sib xws, ntau tus neeg xav tias lawv yog tib lub caij. Raws li nws zoo ib yam li tantalum, nws tau pib tsis meej pem, thiab qhov tseeb tau qhia meej nyob rau hauv 1844 thaum Deutsche H. Roeser kawm ntau columbite thiab tantalite ores kom ntxaws thiab cais ob lub ntsiab lus. Thaum kawg Charles Hatchett tau hu lub caij tom qab tus vajtswv poj niam Niobe. Keeb kwm, Niobium yog Ameslikas hu ua "columbium" tom qab cov columbite ore uas nws pom. Cov ntsiab lus ntawm niobium nyob rau hauv lub ntiaj teb crust yog 0.002%, lub ntuj reserves ntawm niobium nyob rau hauv lub ntiaj teb crust yog 5.2 lab tons, thiab mineable reserves yog 4.4 lab tons, lub ntsiab minerals yog columbite, burnt chrysocolla thiab dub spodumene, xim av yttrium niobium. , tantalumite, titanium-niobium-calcium cerussite.