Ytterbium(III) sulfide
Chemical compound
From Wikipedia, the free encyclopedia
Ytterbium(III) sulfide is a binary inorganic compound of ytterbium and sulfur with the chemical formula Yb2S3. It is a yellow solid of rhombic symmetry, and cell parameters a = 0.678 nm, b = 0.995 nm, c = 0.361 nm.[1]
| Names | |
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| Other names
Ytterbium sulfide, diytterbium trisulfide, ytterbium sesquisulfide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.704 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| S3Yb2 | |
| Molar mass | 442.27 g·mol−1 |
| Appearance | yellow crystals |
| Density | 6.02 g/cm3 |
| insoluble | |
| Structure | |
| rhombic | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
Ytterbium(III) sulfide can be produced by treating metallic ytterbium with sulfur:
- 2Sm + 3S → Sm2S3
Once prepared, ytterbium(III) sulfide can be purified by chemical vapor transport using iodine.[2]
Ytterbium(III) sulfide can also be prepared by treating the sulfate with hydrogen sulfide at elevated temperatures:[3]
- Yb2(SO4)3 + 12 H2S → Yb2S3 + 12 H2O + 12 S
