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vanadium    音標拼音: [vən'ediəm]
n. 釩



vanadium
n 1: a soft silvery white toxic metallic element used in steel
alloys; it occurs in several complex minerals including
carnotite and vanadinite [synonym: {vanadium}, {V}, {atomic
number 23}]

Vanadium \Va*na"di*um\, n. [NL., fr. Icel. Vanad[imac]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 metallic powder. It is
intermediate between the metals and the non-metals, having
both basic and acid properties. Symbol V (or Vd, rarely).
Atomic weight 50.94 (C12=12.000).
[1913 Webster PJC]

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 {ascidian}s. 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.

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  • Vanadium - Wikipedia
    Vanadium is a chemical element; it has symbol V and atomic number 23 It is a hard, silvery-grey, malleable transition metal The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation
  • Vanadium - Uses, Side Effects, and More - WebMD
    Vanadium is a trace mineral regularly consumed in the diet It's found in mushrooms, shellfish, black pepper, parsley, grains, and also drinking water Vanadium might act like insulin or help
  • Vanadium | Facts, Industrial, Medical, Automotive Applications . . .
    vanadium (V), chemical element, silvery white soft metal of Group 5 (Vb) of the periodic table It is alloyed with steel and iron for high-speed tool steel, high-strength low-alloy steel, and wear-resistant cast iron
  • Vanadium: Benefits, Importance, Dosage And Prevention
    Vanadium is an essential trace mineral for daily use It is found in mushrooms, shellfish, black pepper, parsley, grains, and drinking water Vanadium can both inhibit and enhance the action of insulin Vanadium is used to prevent vanadium deficiency
  • Vanadium - Element information, properties and uses | Periodic Table
    Vanadium is found in about 65 different minerals including vanadinite, carnotite and patronite It is also found in phosphate rock, certain iron ores and some crude oils in the form of organic complexes
  • Vanadium Facts, Symbol, Discovery, Properties, Uses
    Vanadium (pronunciation: veh-NAY-dee-em) is a medium-hard, silvery element belonging to the family of transition metals represented by the chemical symbol V [1, 2]
  • Understanding Vanadium: Uses, Properties, and Applications
    Vanadium is a chemical element with the atomic number 23 and the symbol "V " It is a soft, silvery-gray, ductile transition metal The element is primarily used in various high-strength steel alloys
  • Vanadium: Health Benefits, Side Effects, Uses, Dose Precautions - RxList
    Vanadium is a mineral It was named for the Norse goddess of beauty, Vanadis, because of its beautiful colors Vanadium supplements are used as medicine
  • Vanadium: Element Properties and Uses - samaterials. com
    Vanadium, symbol V and atomic number 23, is a silvery-gray metal found primarily in nature in ores such as vanadinite and patronite It has been an essential component in various industrial processes, most notably in steel production
  • Vanadium Metal: Uses, Mining, Supply Risk | Skillings
    Vanadium metal is one of the least-known yet most strategically important minerals in the world It doubles the strength of steel, forms the lightest and strongest alloys in aerospace, and serves as the active ingredient in vanadium redox flow batteries — the leading technology for storing electricity from solar and wind farms at scale





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