working to make science better For the 118 indvidual WIS elements, GO to MORE in the menu above . . .
Cobalt Co
Where is cobalt used--or where does it impact our everyday lives?
Cobalt compounds are brghtly colored and are used in the Art Rooms at WIS--photographed here in the cupboard of Art teacher Ms. T. The cobalt blue pigment in the acrylic paint is due to a mixture of cobalt II oxide and aluminum oxide, CoO/Al2O3.
A few food sources contain vitamin B12, nuts, fish, some green veggies --Vitamin B12 needs bacteria in its synthesis--or eating meat from animals that have ingested vitamin B12. The recommended daily allowance is 2.4 μg/day.
The vitamin B12 molecule has a cobalt atom in it with pyrrole rings (similar to iron in haemoglobin).
See information about cobalt in the diet
Cobalt-60 decays by beta (electron emission, e-) and gamma emission to for nickel-60
60Co --> 60Ni + e- + gamma
IYellow-orange Crayola color of a cobalt ammonium cationic complex: Co(NH3)63+
Airplane turbine blades are made of nickel alloys--mainly nickel with chromium and cobalt.
The photograph shows a Concorde jet engine turbine blade--signed by a senior pilot and on display at the Brooklands Museum in Weybridge, Surrey, UK
WIS Photographer
