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Thulium Oxide

 

Thulium Oxide

Formula:Tm2O3

 

Description: White powder, insoluble in water, soluble in acids.

 

Uses: Used as portable X ray transmission device and reactor control material.

 

 Code

Tm-2N

Tm-3N

 TREO min%

99

99

Tm2O3/TREO min %

99

99.9

 RE-impurities max %

Dy2O3/TREO

total 1.0

total 0.1

Ho2O3/TREO

Er2O3/TREO

Yb2O3/TREO

Lu2O3/TREO

 Non-RE-impurities max %

Fe2O3

0.005

0.005

SiO2

0.006

0.006

CaO

0.01

0.01

Cl-

0.03

0.03

 Thulium emits blue light upon excitation, a property that is exploited in flat panel display screens. Thulium also has useful applications in low-levelradiation detection and other luminescence applications, such as halide discharge lamps. Flat panel screens depend critically on bright blue emitters. Thulium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). Elemental or metallic forms include pelletsrodwire and granules for evaporation source material purposes. Thulium oxide is available in powder and dense pellet form for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Terbium fluorides is another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Thulium is also available in soluble forms including chloridesnitrates and acetates. These compounds can be manufactured as solutions at specified stoichiometries.