Dysprosium foil, 0.1 mm, thick, 99.9%

Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster.

D 5467 (OTTO) Dysprosium foil, 0.1 mm, thick, 99.9% Cas 7429-91-6 - used as an alloying element to produce an alloy used for magnets, and as a poison in nuclear reactors where it stops the reaction from getting out of hand.