vanadium
vanadium
Symbol: V
Atomic number: 23
Atomic weight: 50.9415
Soft and ductile, bright white metal. Good resistance to corrosion by alkalis, sulphuric and hydrochloric acid. It oxidizes readily about 933K. There are two naturally occurring isotopes of vanadium, and 5 radioisotopes, V-49 having the longest half-life at 337 days. Vanadium has nuclear applications, the foil is used in cladding titanium to steel, and vanadium-gallium tape is used to produce a superconductive magnet. Originally discovered by Andres Manuel del Rio of Mexico City in 1801. His discovery went unheeded, however, and in 1820, Nils Gabriel Sefstron of Sweden rediscovered it. Metallic vanadium was isolated by Henry Enfield Roscoe in 1867. The name vanadium comes from Vanadis, a goddess of Scandinavian mythology. Silvery-white metallic transition element. Vanadium is essential to ascidians. Rats and chickens are also known to require it. Metal powder is a fire hazard, and vanadium compounds should be considered highly toxic. May cause lung cancer if inhaled.

Elements of periodic system. 2013.

  • Vanadium — (IPAEng|vəˈneɪdiəm) is a chemical element that has the symbol V and atomic number 23. A soft and ductile element, vanadium naturally occurs in about 65 different minerals and is used mainly to produce certain alloys. It is one of the 596 elements …   Wikipedia

  • VANADIUM — Le vanadium est l’élément chimique de symbole V et de numéro atomique 23. C’est un élément de transition du groupe Va de la classification périodique. Il a été découvert de façon certaine en 1830, dans un minerai de fer suédois, par Nils Gabriel… …   Encyclopédie Universelle

  • Vanadium — Titane ← Vanadium → Chrome …   Wikipédia en Français

  • Vanadium — Va*na di*um, n. [NL., fr. Icel. Vanad[=i]s, a surname of the Scandinavian goddess Freya.] (Chem.) A rare element of the nitrogen phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish white… …   The Collaborative International Dictionary of English

  • vanadium — rare metallic element, 1833, named 1830 by Swedish chemist Nils Gabriel Sefström (1787 1845), from O.N. Vanadis, one of the names of the Norse beauty goddess Freyja (see FREYA (Cf. Freya)), perhaps because of its colorful compounds …   Etymology dictionary

  • vanadium — [və nā′dē əm] n. [ModL < ON Vanadis,FREYA + IUM: name proposed (1831) by BERZELIUS Baron Jöns Jakob for element discovered independently by N. G. Sefström (1787 1845), Swed chemist, and previously (1801) by A. M. del Rio (1764 1849), Mex… …   English World dictionary

  • Vanadium — Eigenschaften …   Deutsch Wikipedia

  • vanadium — /veuh nay dee euhm/, n. Chem. a rare element occurring in certain minerals and obtained as a light gray powder with a silvery luster or as a ductile metal: used as an ingredient of steel to toughen it and increase its shock resistance. Symbol: V; …   Universalium

  • Vanadium — V (Symbol) * * * Va|na|di|um 〈[ va ] n.; s; unz.; chem. 〉 graues, sprödes, korrosionsfestes Metall, Ordnungszahl 23; Sy 〈veraltet〉 Vanadin [nach Vanadis, einem Beinamen der german. Göttin Freia] * * * Va|na|di|um [nach Vanadis (Beiname der… …   Universal-Lexikon

  • Vanadium — vanadis statusas T sritis fizika atitikmenys: angl. vanadium vok. Vanadin, n; Vanadium, n rus. ванадий, m pranc. vanadium, m …   Fizikos terminų žodynas