Vanadium


Vanadium does not have any defined biological functions in the animals, but can be found in a breathing pigment in the blood (blue) of a kind of marine worms (gen. Ascidia). Vanadium can also replace phosphorus in the apatite molecule (P2O5) which is an important constituent of the teeth.

Vanadium and its compounds should be viewed as toxic materials. They must be handled with special care.