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Neodymium(III) sulfide

From Wikipedia, the free encyclopedia
Neodymium(III) sulfide

Names
IUPAC names
Dineodymium trisulfide
Other names
Neodymium sulfide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.642 Edit this at Wikidata
EC Number
  • 234-820-7
  • InChI=1S/2Nd.3S/q2*+3;3*-2[1]
    Key: XZIGKOYGIHSSCQ-UHFFFAOYSA-N
  • [S-2].[S-2].[S-2].[Nd+3].[Nd+3]
Properties
Nd2S3
Molar mass 384.66 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Neodymium(III) sulfide is a inorganic chemical compound with the formula Nd2S3[2] composed of a two neodymium atoms in the +3 oxidation state and three sulfur atoms in the -2 oxidation state. Like other rare earth sulfides, neodymium(III) sulfide is used as a high-performance inorganic pigment.[3]

Preparation

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Neodymium(III) sulfide can directly be produced by reacting neodymium with sulfur:[4][5]

2Nd + 3S → Nd2S3

It can also be produced by sulfidizing neodymium oxide with H2S at 1450 °C:[4][6]

Nd2O3 + 3 H2S → Nd2S3 + 3 H2O

Properties

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Neodymium(III) sulfide is (as γ-form) a light green solid. The compound comes in three forms.[3] The α-form has an orthorhombic crystal structure, the β form has a tetragonal crystal structure, and the γ form has a cubic crystal structure. At 1650 °C in a vacuum, the γ compound decomposes to form neodymium monosulfide.[6]

Neodymium(III) sulfide has a high melting point and a lot of polymorphic forms which make it difficult to grow.[2] When heated, neodymium sulfide can lose sulfur atoms and can form a range of compositions between Nd2S3 and Nd3S4. Neodymium(III) sulfide is an electrical insulator.[4]

See also

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References

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  1. ^ "Neodymium sulfide (Nd2S3)". pubchem.ncbi.nlm.nih.gov. Retrieved 11 April 2022.
  2. ^ a b Uspenskaya, S. I.; Eliseev, A. A.; Fedorov, A. A. (1975), Sheftal’, N. N.; Givargizov, E. I. (eds.), "Vapor Growth of Lanthanum and Neodymium Sulfide Crystals", РОСТ КРИСТАЛЛОВ/Rost Kristallov/Growth of Crystals, Boston, MA: Springer New York, pp. 257–260, doi:10.1007/978-1-4684-1689-3_55, ISBN 978-1-4684-1691-6, retrieved 2023-04-22
  3. ^ a b Faulkner, Edwin B.; Schwartz, Russell J. (2009-03-09). High Performance Pigments. John Wiley & Sons. ISBN 978-3-527-62692-2.
  4. ^ a b c Cotton, Simon (2006). Lanthanide and Actinide Chemistry. John Wiley & Sons Ltd.
  5. ^ 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
  6. ^ a b Meyer, G.; Morss, Lester R. (1990-12-31). Synthesis of Lanthanide and Actinide Compounds. Springer Science & Business Media. ISBN 978-0-7923-1018-1.