Thulium oxide is a light green powder with chemical formula Tm₂O₃. It is soluble in mineral acids but insoluble in water, and readily absorbs moisture and carbon dioxide. When heated to 1300°C, it transforms into hexagonal crystals without melting.
| Product | Product Code | Safety Data | Technical Data |
|---|---|---|---|
| Thulium Oxide 99.9% | ET-Tm-01 | Thulium Oxide.pdf | Thulium Oxide Tm2O3 99.9.pdf |
| Thulium Oxide 99.99% | ET-Tm-02 | Thulium Oxide Tm2O3 99.99.pdf | |
| Thulium Oxide 99.999% | ET-Tm-03 | Thulium Oxide Tm2O3 99.999.pdf |
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Hazard Codes | Xi |
| Precautionary Statements | P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a |
| Flash Point | N/A |
| Risk Codes | 36/37/38 |
| Safety Statements | 26-36 |
| RTECS Number | N/A |
| Transport Information | NONH |
| WGK Germany | 3 |
| GHS Pictograms |  |
Thulium oxide is primarily produced by oxalate precipitation:
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