Thorium disulfide

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Thorium disulfide
Other names Thorium(IV) sulfide
Identifiers
InChI InChI=1/2S.Th/q2*-2;+4
InChIKey VOHUFELWJQLMRX-UHFFFAOYAZ
Standard InChI InChI=1S/2S.Th/q2*-2;+4
Standard InChIKey VOHUFELWJQLMRX-UHFFFAOYSA-N
CAS number [12138-07-7]
EC number 235-242-8
ChemSpider 23349363
Properties[1][2]
Chemical formula ThS2
Molar mass 296.17 g mol−1
Appearance purple-brown solid
Density 7.36 g cm−3
Melting point

1905 °C

Solubility in water insoluble
Structure[2][3]
Crystal structure Lead dichloride
Space group Pmnb
Lattice constant a = 426.7 pm, b = 726.4 pm, c = 861.7 pm
Related compounds
Other anions Thorium dioxide
Thorium diselenide
Thorium ditelluride
Other cations Uranium disulfide
Zirconium disulfide
Hafnium disulfide
Other compounds Thorium monosulfide
Thorium sesquisulfide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Thorium disulfide, ThS2, is one of the sulfides of thorium. Although it is said to melt at 1905 °C, considerable decomposition occurs above 1500 °C.[4] Heating the disulfide in vacuo yields the black Th7S12.[4][5]

Notes and references

Notes

References

  1. CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-158. ISBN 0-8493-0462-8
  2. 2.0 2.1 Wickleder, Mathias S.; Fourest, Blandine; Dorhout, Peter K. Thorium. In The Chemistry of the Actinide and Transactinide Elements, 3rd ed.; Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean, Eds.; Springer: Dordrecht, the Netherlands, 2006; Vol. 1, Chapter 3, pp 52–160. doi:10.1007/1-4020-3598-5_3, <http://radchem.nevada.edu/classes/rdch710/files/thorium.pdf>.
  3. Zachariasen, W. H. Crystal chemical studies of the 5f-series of elements. X. Sulfides and oxysulfides. Acta Crystallogr. 1949, 2, 291–96. DOI: 10.1107/S0365110X49000758.
  4. 4.0 4.1 Eastman, E. D.; Brewer, Leo; Bromley, LeRoy A.; Gilles, Paul W.; Lofgren, Norman L. Preparation and Properties of the Sulfides of Thorium and Uranium. J. Am Chem. Soc. 1950, 72 (9), 4019–23. DOI: 10.1021/ja01165a051. Eastman, E. D.; Brewer, Leo; Bromley, LeRoy A.; Gilles, Paul W.; Lofgren, Norman I. Preparation and Tests of Refractory Sulfide Crucibles. J. Am. Ceram. Soc. 1951, 34 (4), 128–34. DOI: 10.1111/j.1151-2916.1951.tb11620.x.
  5. Zachariasen, W. H. Crystal chemical studies of the 5f-series of elements. IX. The crystal structure of Th7S12. Acta Crystallogr. 1949, 2, 288–91. DOI: 10.1107/S0365110X49000746.

External links

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