Actinium sulfide

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Actinium sulfide
Other names Actinium(III) sulfide
Actinium sesquisulfide
Identifiers
Standard InChI InChI=1S/2Ac.3S/q2*+3;3*-2
Standard InChIKey FBGRPVYTNBFOJK-UHFFFAOYSA-N
CAS number [50647-18-2]
Properties[1]
Chemical formula Ac2S3
Molar mass 550.25 g mol−1 [note 1]
Appearance dark solid
Density 6.75 g cm−3
Structure[5]
Crystal structure Cerium sulfide
Lattice constant a = 897(1) pm
Related compounds
Other anions Actinium oxide
Other cations Scandium sulfide
Yttrium sulfide
Lanthanum sulfide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Actinium sulfide, Ac2S3, is the only known binary sulfide of actinium. It has been prepared (on a 10-µg scale) by the reaction of hydrogen sulfide with actinium oxide at 1400 °C.[4][5]

Notes and references

Notes

  1. The molar mass is based on actinium-227 (t½ = 21.772(3) a; Ar = 227.027 7521(26)),[2] the most commonly encountered isotope of actinium and the one used in the original chemical studies.[3][4]

References

  1. CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-73. ISBN 0-8493-0462-8.
  2. Audi, G.; Bersillon, O.; Blachot, J.; Wapstra, A. H. The NUBASE evaluation of nuclear and decay properties. Nucl. Phys. A 2003, 729, 3–128. doi:10.1016/j.nuclphysa.2003.11.001, <http://amdc.in2p3.fr/nubase/Nubase2003.pdf>.
  3. Hagemann, French The Isolation of Actinium. J. Am. Chem. Soc. 1950, 72 (2), 768–71. DOI: 10.1021/ja01158a033.
  4. 4.0 4.1 Fried, Sherman; Hagemann, French; Zachariasen, W. H. The Preparation and Identification of Some Pure Actinium Compounds. J. Am. Chem. Soc. 1950, 72 (2), 771–75. DOI: 10.1021/ja01158a034.
  5. 5.0 5.1 Kirby, H. W.; Morss, L. R. Actinium. 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 2, pp 18–51. doi:10.1007/1-4020-3598-5_2, <http://radchem.nevada.edu/classes/rdch710/files/actinium.pdf>.

External links

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