Vanadium and Cancer
Definition:
vanadium
Source:
WordNet (r) 1.7
vanadium
n : a soft silvery white toxic metallic element used in
steel
alloys; it occurs in several complex minerals including
carnotite and vanadinite [syn: V, atomic number 23]
Source: Webster's Revised Unabridged Dictionary (1913)
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 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 51.2.
Source:
Elements database 20001107
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.
Source: U.S. Gazetteer (1990)
Vanadium,
NM
Angstrom Minerals Product And Price List
The information on this page has been extracted from http://dict.die.net/vanadium/
