Dysprosium

66
Dy
162.50

Dysprosium.jpg (63797 bytes)
Dysprosium is used in color TV Tubes.

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Dy Dysprosium 66 162.50

Description

Standard State: solid at 298 K
Color: silvery white

Leoq de Boisbaudran discovered Dysprosium in 1886 , but it was not isolated unitl the ion-exchange separation was developed. Dysprosium is relatively stable at room temperature and is quickly attacked and will dissolve.  The metal is soft enough to be cut with a knife and if the metal was to machined it would cause no spark it was not overheated.  The only use for Dysprosium is a oxide-nickel cement used in cooling nuclear reactor control rods.