Thulium oxide
Thulium(III) oxide
CAS: 12036-44-1;39455-81-7
Molecular Formula: O3Tm2
Thulium oxide - Names and Identifiers
| Name | Thulium(III) oxide |
| Synonyms | Thulia Thulium oxide oxygen(-2) anion Thulium(III) oxide Dithulium trioxide thulium(+3) cation ThuliumoxideREOwhitepowder |
| CAS | 12036-44-1 39455-81-7 |
| EINECS | 234-851-6 |
| InChI | InChI=1/3O.2Tm/rO3Tm2/c1-4-3-5-2 |
| InChIKey | CWEYWFRFCUNVEY-UHFFFAOYSA-N |
Thulium oxide - Physico-chemical Properties
| Molecular Formula | O3Tm2 |
| Molar Mass | 385.87 |
| Density | 8.600 |
| Melting Point | 2425°C |
| Water Solubility | Slightly soluble in strong acids. Insoluble in water. |
| Appearance | Micro beige powder |
| Color | Pale Green |
| Merck | 14,9394 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00011285 |
| Physical and Chemical Properties | Character: gray-white powder. melting point 2392 ℃ solubility insoluble in water, in strong acid can dissolve slowly. |
| Use | Used as a phosphor activator, also used in a portable X-ray device |
Thulium oxide - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 28469099 |
Thulium oxide - Nature
Open Data Verified Data
off-white powder, after heating into a shiny red, long heating, and can become yellow-white. Melting point 2392 °c. Insoluble in water, in strong acid can dissolve slowly.
Last Update：2024-01-02 23:10:35
Thulium oxide - Preparation Method
Open Data Verified Data
extraction 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 cerium removal is fed, and the yttrium-rich rare earth is extracted and grouped by N263-L1N03 system, after Acid dissolution, pure yttrium is extracted with N263-heavy solvent-NH4 SCN system. The raffinate is yttrium-rich rare earth, and other heavy rare earth thulium, ytterbium and lutetium enter the organic phase, then it is extracted and back-extracted by groups of thulium (thulium) to make thulium and ytterbium enter the aqueous phase, separated by oxalic acid precipitation, filtered and burned to prepare thulium oxide.
Last Update：2022-01-01 11:05:17
Thulium oxide - Introduction
Insoluble in water, soluble in acid.
Last Update：2022-10-16 17:12:38
Thulium oxide - Use
Open Data Verified Data
It is mainly used for manufacturing a portable X-ray transmission device. It may also be used as a control material in a reactor.
Last Update：2022-01-01 11:05:17
Thulium oxide - Safety
Open Data Verified Data
polyethylene plastic bottle packaging, jacket carton protection. Log or 250g net weight per bottle. Should be stored in a ventilated, dry warehouse. Attention should be paid to moisture and packaging damage during storage and transportation. See cerium oxide for toxicity and protection.
Last Update：2022-01-01 11:05:18
Thulium oxide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | see cerium oxide. |
| Use | Activator for fluorescent materials Mainly used to manufacture portable x-ray transmission devices. It can also be used as control material in reactors. used as phosphor activator, also used to make portable X-ray devices scientific research reagents, biochemical research used in fluorescent materials laser agents, electronics industry and scientific research. |
| production method | the mixed rare earth obtained by decomposing brown yttrium niobium ore by extraction method contains about 4% Y2O3 50% and CeO2. it is fed with rare earth nitrate solution after cerium removal, N263-LiNO is used for system extraction and grouping yttrium-rich rare earth, and pure yttrium is extracted with N263-heavy solvent-NH4SCN system after acid dissolution. the raffinate is yttrium-rich rare earth, other heavy rare earths thulium, ytterbium, and lutetium enter the organic phase, and then are extracted and extracted by thulium lutetium in groups, so that thulium and ytterbium enter the water phase, and are separated, filtered, and burned by oxalic acid precipitation to produce thulium oxide. Its Tm2(C2O4)3 → Tm2O3 +3CO2 + 3CO |
Last Update：2024-04-10 22:29:15
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Multiple SpecificationsSpot supply
Product Name: Thulium oxide Visit Supplier Webpage Request for quotationCAS: 12036-44-1
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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