Share to:

 

Lanthanum monosulfide

Lanthanum monosulfide
Names
IUPAC name
lanthanum; sulfide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/La.S/q+2;-2
    Key: GTXCIJGFTBRPNK-UHFFFAOYSA-N
  • [S-2].[La+2]
Properties
LaS
Molar mass 170.97 g·mol−1
Appearance golden crystals
Density 5.61 g/cm3
Melting point 2,300 °C (4,170 °F; 2,570 K)
Structure
Cubic
Related compounds
Related compounds
 Samarium monosulfide
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lanthanum monosulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula LaS.[1][2]

Synthesis

Lanthanum monosulfide can be prepared from the effect of sulfur vapor on metallic lanthanum:

La + S → LaS

It can also be prepared from the reduction of La2S3 with metallic La.[3]

Physical properties

Lanthanum monosulfide forms golden crystals[4] of the cubic system, space group Fm3m, cell parameters a = 0.586 nm, Z = 4, structurally isomorphous with NaCl.[5]

References

  1. ^ Cater, E. D.; Lee, T. E.; Johnson, E. W.; Rauh, E. G.; Eick, H. A. (1965). "Vaporization, thermodynamics, and dissociation energy of lanthanum monosulfide". NIST. p. 2684. Retrieved 26 July 2024.
  2. ^ "Lanthanum Monosulfide". American Elements. Retrieved 26 July 2024.
  3. ^ Soviet Research on Complex and Coordination Compounds: Inorganic complexes. 1960. p. 579. Retrieved 26 July 2024.
  4. ^ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 220. ISBN 978-1-4398-1462-8. Retrieved 26 July 2024.
  5. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3548. ISBN 978-0-412-30120-9. Retrieved 26 July 2024.
Kembali kehalaman sebelumnya