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Rare Earth Oxides Thulium Oxide O3Tm2 CAS No.12036-44-1 White Powder Purity≥99.99%
| CAS No. | 12036-44-1 |
| Synonyms | Dithuliumtrioxide;Thulium(III)oxide,REacton(R),99.99%(REO);Thulium(III)oxide,REacton(R),99.997%(REO);Thulium(III)oxide,REacton(R),Chemicalbook99.9%(REO);Thulium(III)oxide,REacton,99.99%(REO);Thulium(III)oxide,REacton,99.9%(REO);Thulia;Thulium(III)oxide,REacton99.997%(REO) |
| Molecular formula | O3Tm2 |
| Molecular weight | 385.87 |
| EINECS number | 234-851-6 |
| Melting point | 2425°C |
| density | 8.600 |
| Storage conditions | Inert atmosphere,2-8°C |
| form | powder |
| color | Off-white to Pale Green |
| proportion | 8.64 |
| Water solubility | Slightly soluble in strong acids. Insoluble in water. |
| Merck | 14,9394 |
| InChIKey | CWEYWFRFCUNVEY-UHFFFAOYSA-N |
| Chemical nature |
Off-white to pale green powder. It is insoluble in water and can slowly dissolve in strong acid. |
| use |
Activator for fluorescent materials.
Mainly used to manufacture portable x-ray transmission devices. It can also be used as a control material in the reactor.
Used as a phosphor activator and also used to make portable X-ray devices
Scientific research reagents, biochemical research.
It is used for fluorescent material laser agent, electronic industry and scientific research. |
| production method |
The mixed rare earth obtained by decomposing brown yttrium niobium ore contains Y2O3 50% and CeO2 about 4%. The rare earth nitrate solution after removing cerium is fed. N263-LiNO is used. The system is extracted and grouped to obtain yttrium-rich rare earths. The N263-heavy solvent-NH4SCN system extracts and purifies yttrium. The raffinate is yttrium-rich rare earth, and other heavy rare earths thulium, ytterbium, and lutetium enter the organic phase, and then grouped by thulium-lutetium extraction and back extraction, so that thulium and ytterbium enter the water phase. After oxalic acid precipitation separation, filtration, and burning, thulium oxide is obtained. Its Tm2(C2O4)3→Tm2O3+3CO2+3CO |
| Dangerous Goods Sign | Xi |
| Hazard category code | 36/37/38 |
| safety instructions | 26-36 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 28469099 |
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