Thulium oxide (Tm2O3)
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Thulium oxide (Tm2O3)
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CAS No:
12036-44-1
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Formula:
O3Tm2
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Chemical Name:
Thulium oxide (Tm2O3)
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Synonyms:
Thulium oxide (Tm2O3);Thulium sesquioxide;Thulium(3+) oxide;Dithulium trioxide;Thulium trioxide;Thulium(III) oxide;Thulium oxide;Thulia;Thulium sesquioxide (Tm2O3);1400873-04-2
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CAS No:
Characteristics
43.37000
-0.30600
Pale Green Sintered Lump
8.6 g/cm3 @ Temp: Room temp
2425°C
Slightly soluble in strong acids. Insoluble in water.
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Safety Information
NONH for all modes of transport
3
36/37/38
26-36
Xi
Stable under normal temperatures and pressures. Absorbs carbon dioxide from the air.
P261-P305 + P351 + P338
H315-H319-H335
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 50 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Thulium oxide (Tm2O3) Use and Manufacturing
The mixed rare earth obtained by decomposing the brown yttrium niobium ore contains 50% of Y2O3 and about 4% of CeO2. It is fed with rare earth nitrate solution after cerium removal. N263-LiNO is used to extract and group the system to obtain yttrium-rich rare earth. N263-heavy solvent-NH4SCN system extracts and purifies yttrium, the raffinate is yttrium-rich rare earth, other heavy rare earth thulium, ytterbium, and lutetium enter the organic phase, and then through thulium lutetium group extraction, back extraction, so that thulium and ytterbium enter the water phase, Thulium oxide is prepared by oxalic acid precipitation separation, filtration and burning. Its Tm2(C2O4)3→Tm2O3+3CO2+3CO
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.
Thulium oxide (Tm2O3): ACTIVE
Computed Properties
Molecular Weight:385.867
Hydrogen Bond Acceptor Count:3
Exact Mass:385.85318
Monoisotopic Mass:385.85318
Topological Polar Surface Area:3
Heavy Atom Count:5
Covalently-Bonded Unit Count:5
Compound Is Canonicalized:Yes
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