Vanadium

Vanadium, V, is a transition metal element found in Group Va of the periodic table. Vanadium has several valences in its compounds.

Discovery

Vanadium was first isolated by J J Berzelius in 1867AD.

Occurrence

Vanadium is widely distributed in rocks.

Its principal ores include occurs in

Vanadium occurs in many coals which are mined in Peru.


Extraction

Vanadium is extracted by fusing the ore with sodium carbonate and sodium nitrate when sodium vanadate is formed. The latter is extracted with water and then treated with ammonium chloride which results in a orange coloured precipitate of ammonium metavanadate which then yields vanadium pentoxide on heating.

Preparation

Vanadium may be prepared in a small scale in the laboratory by using the 'thermite reaction'. Thus, a mixture of vanadium pentoxide and aluminium powder is ignited which results in the formation of aluminium oxide and vanadium.

Manufacture


Properties


Reactions


Uses

Vanadium is used


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