| Description |
Shiny, silvery metal, soft when pure. Resists corrosion due to protective oxide film. Attacked by concentrated acids but not by fused alkalis. Used mainly as alloys and in steel. Diagnostic tests:
Vanadium is usually detected by the color it imparts to the fluxes.
With a borax bead
test in the oxidizing flame, the bead is
yellow when hot, changing to a yellowish green to almost colorless when
cold. In a Na2(NH4)(PO4) bead
under oxidizing conditions, vanadium is yellow to deep amber (hot)
yielding slightly less color on cooling. In the reducing flame, it becomes
a dirty green color (hot) and a fine green color when cold.
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