Ytterbium(III) sulfide
| Names
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| Other names
Ytterbium sulfide, diytterbium trisulfide, ytterbium sesquisulfide
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| Identifiers
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| ChemSpider
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| ECHA InfoCard
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100.031.704 
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| EC Number
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InChI=1S/S.Yb Key: QHGZBASAVJOMNS-UHFFFAOYSA-N
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| Properties
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S3Yb2
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| Molar mass
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442.27 g·mol−1
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| Appearance
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yellow crystals
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| Density
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6.02 g/cm3
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insoluble
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| Structure
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rhombic
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Chemical compound
Ytterbium(III) sulfide is a binary inorganic compound of ytterbium and sulfur with the chemical formula Yb2S3.[1]
Preparation
Ytterbium(III) sulfide can be obtained by reacting ytterbium and sulfur in an inert atmosphere at 450–800 °C:
- 2Yb + 3S → Yb2S3
It can also be prepared by passing hydrogen sulfide through heated ytterbium(III) oxide:
- Yb2O3 + 3H2S → Yb2S3 + 3H2O
Physical properties
Ytterbium(III) sulfide forms yellow crystals of rhombic symmetry, and cell parameters a = 0.678 nm, b = 0.995 nm, c = 0.361 nm.[2]
Uses
The compound is used in the production of ceramics and as a catalyst.[3]
References
