Difference between revisions of "Terbium(III) oxide"
| Line 51: | Line 51: | ||
| BoilingPtC = | | BoilingPtC = | ||
| BoilingPt_ref = | | BoilingPt_ref = | ||
| − | | BoilingPt_notes = | + | | BoilingPt_notes = Decomposes |
| Density = 7.91 g/cm<sup>3</sup> | | Density = 7.91 g/cm<sup>3</sup> | ||
| Formula = Tb<sub>2</sub>O<sub>3</sub> | | Formula = Tb<sub>2</sub>O<sub>3</sub> | ||
| Line 65: | Line 65: | ||
| pKb = | | pKb = | ||
| Solubility = Insoluble | | Solubility = Insoluble | ||
| − | | SolubleOther = | + | | SolubleOther = Reacts with acids |
| Solvent = | | Solvent = | ||
| VaporPressure = ~0 mmHg | | VaporPressure = ~0 mmHg | ||
Revision as of 19:43, 26 October 2018
| Names | |
|---|---|
| IUPAC name
Terbium(III) oxide
| |
| Systematic IUPAC name
Terbium(III) oxide | |
| Other names
Terbium trioxide
Terbia Terbium sesquioxide | |
| Identifiers | |
| Jmol-3D images | Image |
| |
| Properties | |
| Tb2O3 | |
| Molar mass | 365.85 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 7.91 g/cm3 |
| Melting point | 2,410 °C (4,370 °F; 2,680 K) |
| Boiling point | Decomposes |
| Insoluble | |
| Solubility | Reacts with acids |
| Vapor pressure | ~0 mmHg |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Flash point | Non-flammable |
| Related compounds | |
| Related compounds
|
Terbium(III) chloride |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Terbium(III) oxide, also known as terbium trioxide or terbia, is an oxide of terbium, with a chemical formula Tb2O3.
Contents
Properties
Chemical
Terbium(III) oxide readily dissolves in acids, resulting in the terbium salt of the said acid.
Physical
Terbium(III) oxide is a white solid, with a melting point of 2,410 °C.
Availability
Terbium(III) oxide is sold by various chemical suppliers.
Preparation
The precipitation of most terbium(III) compounds gives terbium(III) hydroxide, which can be converted to Tb2O3.
Terbium trioxide can be prepared by the reduction of terbium(III,IV) oxide (Tb4O7) with hydrogen at 1300 °C for 24 hours. This process is too complex for the amateur chemist, and it's cheaper to simply buy the compound.
Projects
- Make terbium salts
Handling
Safety
Terbium trioxide shows moderate toxicity and has no known biological role.
Storage
Terbium(III) oxide should be stored in sealed containers, away from moisture and acidic vapors.
Disposal
Terbium(III) oxide can be either recycled or dumped in trash.
References
Relevant Sciencemadness threads
No threads so far. Why not start one?
- Chemical pages without CAS Registry Number
- Articles without EBI source
- Chemical pages without ChemSpiderID
- Chemical pages without DrugBank identifier
- Articles without KEGG source
- Articles without InChI source
- Articles without UNII source
- Articles containing unverified chemical infoboxes
- Chembox articles without image
- Chemical compounds
- Inorganic compounds
- Lanthanide compounds
- Terbium compounds
- Oxides
- Materials unstable in acidic solution
