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Praseodymium(III) sulfide

(Redirected from Praseodymium sesquisulfide)

Praseodymium(III) sulfide is an inorganic chemical compound with chemical formula Pr2S3.

Praseodymium(III) sulfide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.031.691 Edit this at Wikidata
EC Number
  • 234-874-1
  • InChI=1S/2Pr.3S/q2*+3;3*-2
    Key: VUXGXCBXGJZHNB-UHFFFAOYSA-N
  • [S-2].[S-2].[S-2].[Pr+3].[Pr+3]
Properties
Pr2S3
Molar mass 378.00 g/mol
Appearance brown powder
Odor rotten egg
Density 5.042 g/cm3, solid (11°C)
+10,770·10−6 cm3/mol
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
3
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation

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Praseodymium(III) sulfide can be obtained by reacting praseodymium(III) oxide and hydrogen sulfide at 1320 °C:[1]

Pr2O3 + 3H2S → Pr2S3 + 3H2O

It could also be obtained by directly reacting sulfur with metallic praseodymium:[2]

2Pr + 3S → Pr2S3

References

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  1. ^ Georg Brauer (1975). Handbuch der präparativen anorganischen Chemie (in German). Enke. ISBN 978-3-432-02328-1. Archived from the original on 2022-08-31. Retrieved 2022-08-31.
  2. ^ A. W. Sleight and D. P. Kelly (1973), Aaron Wold and John K. Ruff (ed.), Rare-earth sesquisulfides, Ln2S3, Inorganic Syntheses (in German), vol. 14, McGraw-Hill Book Company, Inc., pp. 152–155
 

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