Dysprosium(III) sulfide
Names
Other names
Didysprosium trisulfide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.995 Edit this at Wikidata
EC Number
  • 235-208-2
  • InChI=1S/3Dy.3S/q;2*+3;3*-2
    Key: SVCBLQQYIMDMCB-UHFFFAOYSA-N
  • [Dy+3].[Dy+3].[S-2].[S-2].[S-2]
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:
GHS02: FlammableGHS07: Exclamation mark
Danger
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dysprosium(III) sulfide is a binary inorganic compound of dysprosium and sulfur with the chemical formula Dy2S3.[1][2][3][4]

Synthesis

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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

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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

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Dy2S3 oxidizes when strongly heated in air:

Dy2S3 + 3O2 → Dy2O2S + 2SO2

References

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  1. ^ 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.
  2. ^ 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.
  3. ^ "Dysprosium Sulfide". American Elements. Retrieved 1 August 2024.
  4. ^ "WebElements Periodic Table » Dysprosium » didysprosium trisulphide". webelements.com. Retrieved 1 August 2024.
  5. ^ 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.
  6. ^ "Buy DYSPROSIUM SULFIDE | 12133-06-1 | BenchChem". benchchem.com. Retrieved 1 August 2024.
Sulfides (S2−)
Categories