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Specifications of Thulium Rare Earth Element

* Thulium element is a rare earth element with symbol Tm. And its atomic number is 69. Thulium rare earth element was discovered by Per Teodor Cleve in 1879.
* This rare earth element bright, soft and malleable silver-gray element.It can be cut by a knife.Thulium is a rare earth metal and is one of the least abundant.

* Thulium rare earth metal become dulles slowly in dry air to form the oxide. Also this rare earth metal reacts with water to form the hydroxide and hydrogen gas. Especially thulium powder which has high purity is very effective for reacting air and water.

* Thulium rare earth element is considered to be non-toxic. 

* Radioactive isotope of this rare earth element(170Tm) is produced by bombarding thulium in a nuclear reactor. It has a half-life of 128 days.Also it is used as a movable source of x-rays. 

* Thulium rare earth element is used for doping yttrium aluminum garnets (YAG) used in lasers. 

* Thulium rare earth element is used in alloys with other rare earth metals. Thulium is used in euro banknotes for its blue fluorescence under UV light to defeat counterfeiters. 


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