Dysprosium(III) sulfide
| Names | |
|---|---|
| Other names
Didysprosium trisulfide
| |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
| ECHA InfoCard | 100.031.995 |
| EC Number |
|
PubChem CID
|
|
CompTox Dashboard (EPA)
|
|
| |
| |
| Properties | |
| Dy2S3 | |
| Molar mass | 421.18 g·mol−1 |
| Appearance | brown crystals |
| Density | 6.08 g/cm3 |
| moderately soluble | |
| Related compounds | |
Related compounds
|
Lanthanum(III) sulfide |
| Hazards | |
| GHS labelling: | |
 
| |
| Danger | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
| |
Dysprosium(III) sulfide is a binary inorganic compound of dysprosium and sulfur with the chemical formula Dy2S3.[1][2][3][4]
Synthesis
Heating of pure substances in an inert atmosphere or vacuum:
- 2Dy + 3S → Dy2S3
The effect of hydrogen sulfide on dysprosium(III) oxide:
- Dy2O3 + 3H2S → Dy2S3 + 3H2O
Physical properties
Didysprosium trisulfide forms yellow-orange-brown crystals of two modifications: cubic and monoclinic systems.[5]
There is evidence that Dy2S3 forms crystals of brown-red, black, or green color.
The crystals are stable in dry air, but in humid air they are slowly hydrolyzed. The compound is moderately soluble in water and acids.[6]
Chemical properties
Dy2S3 oxidizes when strongly heated in air:
- Dy2S3 + 3O2 → Dy2O2S + 2SO2
References
- ^ Bouroushian, Mirtat (23 April 2010). Electrochemistry of Metal Chalcogenides. Springer Science & Business Media. p. 32. ISBN 978-3-642-03967-6. Retrieved 1 August 2024.
- ^ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices. U.S. Environmental Protection Agency, Office of Toxic Substances. 1980. p. 128. Retrieved 1 August 2024.
- ^ "Dysprosium Sulfide". American Elements. Retrieved 1 August 2024.
- ^ "WebElements Periodic Table » Dysprosium » didysprosium trisulphide". webelements.com. Retrieved 1 August 2024.
- ^ Haynes, William M. (4 June 2014). CRC Handbook of Chemistry and Physics. CRC Press. p. 4-63. ISBN 978-1-4822-0868-9. Retrieved 1 August 2024.
- ^ "Buy DYSPROSIUM SULFIDE | 12133-06-1 | BenchChem". benchchem.com. Retrieved 1 August 2024.