Praseodymium(III) sulfide

Praseodymium(III) sulfide
Identifiers
CAS Number	12038-13-0 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.031.691
EC Number	234-874-1;
PubChem CID	166019;
CompTox Dashboard (EPA)	DTXSID60923362 ;
	InChI InChI=1S/2Pr.3S/q2+3;3-2 Key: VUXGXCBXGJZHNB-UHFFFAOYSA-N;
	SMILES [S-2].[S-2].[S-2].[Pr+3].[Pr+3];
Properties
Chemical formula	Pr2S3
Molar mass	378.00 g/mol
Appearance	brown powder
Odor	rotten egg
Density	5.042 g/cm3, solid (11°C)
Magnetic susceptibility (χ)	+10,770·10−6 cm3/mol
Hazards
NFPA 704 (fire diamond)	2 3 0
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Praseodymium(III) sulfide is an inorganic chemical compound with chemical formula Pr₂ S₃.

Preparation

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

^ 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.
^ 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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