Thulium Oxide 99.9999%
Thulium Oxide 99.9999%, code 6990
Formula: Tm2O3
CAS No.: 12036-44-1
Molecular Weight: 385.88
Density: 8.6 g/cm3
Melting point: 2341°C
Appearance: White powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly  hygroscopic
Multilingual: ThuliumOxid, Oxyde De Thulium, Oxido Del Tulio
Thulium Oxide also called Thulia, is the important dopant for silica-based fibre amplifiers, and also have specialized uses in ceramics, glass, phosphors, lasers. Because the wavelength of thulium-based lasers is very efficient for superficial ablation of tissue, with minimal coagulation depth in air or in water. This makes thulium lasers attractive for laser-based surgery. It can also be used in portable X-ray devices that has been bombarded in a nuclear reactor as a radiation source. The other main application is used to make optical fiber.
Products available
Product Code: 6990 Standard Specification Typical Analysis Inspection Methods
Grade 99.9999% 99.9999%  
CHEMICAL COMPOSITION
Tm2O3 /TREO (% min.) 99.9999 99.9999
TREO (% min.) 99.9 99.9 Volumetric Method
Loss On Ignition (% max.) 0.5 0.5
Rare Earth Impurities ppm max. ppm
Tb4O7/TREO
Dy2O3/TREO
Ho2O3/TREO
Er2O3/TREO
Yb2O3/TREO
Lu2O3/TREO
Y2O3/TREO		 0.1
0.1
0.1
0.5
0.5
0.5
0.1		 0.1
0.08
0.1
0.5
0.3
0.3
0.05		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities ppm max. ppm
Fe2O3
SiO2
CaO
CuO
Cl-
NiO
ZnO
PbO		 1
5
5
1
50
1
1
1		 1
3
5
0.5
30
1
1
1		 Spectrographic

Atomic Absorption Spectrographic
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