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Niobium pentoxide is the inorganic compound with the formula Nb 2 O 5. A colorless, insoluble, and fairly unreactive solid, it is the most widespread precursor for other compounds and materials containing niobium. It is predominantly used in alloying, with other specialized applications in capacitors, optical glasses, and the production of ...
Niobium oxide, archaically called columbium oxide, [1] may refer to: Niobium monoxide (niobium(II) oxide), NbO; Niobium dioxide (niobium(IV) oxide), NbO 2; Niobium pentoxide (niobium(V) oxide), Nb 2 O 5; In addition to the above, other distinct oxides exist general formula Nb 3n+1 O 8n−2 where n ranges from 5 - 8 inclusive, e.g. Nb 8 O 19 (Nb ...
The niobate can be obtained by reacting niobium pentoxide with the corresponding oxide, hydroxide or carbonate. [1] For example, reacting lithium carbonate with niobium pentoxide would obtain lithium niobate: [2] Li 2 CO 3 + Nb 2 O 5 → 2 LiNbO 3 + CO 2 ↑. Cobalt metaniobate can be obtained by heating a mixture of cobalt monoxide and niobium ...
Phosphorus pentoxide is a more complex molecular oxide with a deceptive name, the real formula being P 4 O 10. Tetroxides are rare, with a few more common examples being ruthenium tetroxide, osmium tetroxide, and xenon tetroxide. [2]
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 salt is prepared by dissolving niobium pentoxide in a solution of potassium bifluoride in 40% hydrofluoric acid: [4] Nb 2 O 5 + 4 KHF 2 + 6 HF → 2K 2 NbF 7 + 5 H 2 O. Potassium heptafluoroniobate and potassium heptafluorotantalate are isostructural. The anion has approximate C 2v symmetry, being a face-capped trigonal prism. The Nb-F ...
Pentoxide may refer to: Antimony pentoxide, Sb 2 O 5; Arsenic pentoxide, As 2 O 5; Carbon pentoxide, CO 5; Dinitrogen pentoxide, N 2 O 5; Iodine pentoxide, I 2 O 5; Niobium pentoxide, Nb 2 O 5; Phosphorus pentoxide, P 4 O 10; Tantalum pentoxide, Ta 2 O 5; Tungsten pentoxide, W 18 O 49
Ferroniobium is an important iron-niobium alloy, with a niobium content of 60-70%. [1] It is the main source for niobium alloying of HSLA steel and covers more than 80% of the worldwide niobium production. The niobium is mined from pyrochlore deposits and is subsequently transformed into the niobium pentoxide Nb 2 O 5.