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Niobium was officially adopted as the name of the element in 1949, but the name columbium remains in current use in metallurgy in the United States. It was not until the early 20th century that niobium was first used commercially. Niobium is an important addition to high-strength low-alloy steels.
The mineral columbite The element niobium. In 1846, Rose rediscovered the chemical element niobium, proving conclusively that it was different from tantalum. This confirmed that Charles Hatchett had discovered niobium in 1801 in columbite ore. Hatchett had named the new element "columbium", from the ore in which niobium and tantalum coexist.
Charles Hatchett FRS FRSE (2 January 1765 – 10 March 1847 [1]) was an English mineralogist and analytical chemist who discovered the element niobium, for which he proposed the name "columbium". [ 2 ]
Niobium: 1801 C. Hatchett: 1864 W. Blomstrand: Hatchett found the element in columbite ore and named it columbium. In 1809, W. H. Wollaston claimed that columbium and tantalum are identical, which proved to be false. [85] Heinrich Rose proved in 1844 that the element is distinct from tantalum, and renamed it niobium.
The main source of niobium until now has been from the ore mineral columbite that is extracted widely in Canada, Brazil, Australia and Nigeria, with China obtaining nearly 95 per cent of the ...
There are 20 parts per million of niobium in the Earth's crust, making it the 33rd most abundant element there. Soil contains on average 24 parts per million of niobium, and seawater contains 900 parts per quadrillion of niobium. A typical human contains 21 parts per billion of niobium. Niobium is in the minerals columbite and pyrochlore. [19]
Named after Thule, an ancient Roman and Greek name (Θούλη) for a mythical country in the far north, perhaps Scandinavia. Ytterbium (Yb) 70 Ytterby Swedish proper name toponym Named after ytterbia, the oxide compound of ytterbium. Ytterbia itself was named after Ytterby, Sweden. [31] [22] Lutetium (Lu) 71 Lutetia: Latin "Paris" toponym
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 November 2024. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and ...