Praseodymium arsenide
Names
Other names
  • Praseodymium(III) arsenide
  • Arsenic-Praseodymium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.763
EC Number
  • 234-953-0
  • InChI=1S/As.PrNJQBXEXIDZEJEW-UHFFFAOYSA-N
  • [As]#[Pr]
Properties
PrAs
Molar mass 215.83 g/mol
Density 6.6 g/cm3
Related compounds
Other anions
 PrN, PrP, PrSb, PrBi, Pr2O3
Other cations
 CeAs, NdAs
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Praseodymium arsenide is a binary inorganic compound of praseodymium and arsenic with the formula PrAs.

Preparation

Praseodymium arsenide can be prepared by heating praseodymium and arsenic:

Physical properties

Praseodymium arsenide forms cubic crystals, space group F m3m, cell parameters a = 0.6009 nm, Z = 4, and structure like sodium chloride.[1][2][3][4] When heated, it decomposes into arsenic and Pr4As3.[2] At a pressure of 27 GPa, a phase transition to the tetragonal crystal system occurs.[5]

See also

References

  1. ↑ Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия. Редкол.: Никольский Б.П. и др. 1966.
  2. 1 2 Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 1. Moskva: Mašinostroenie. 1996. ISBN 978-5-217-02688-3.
  3. ↑ Gschneidner, K. A.; Calderwood, F. W. (August 1986). "The As−Pr (Arsenic-Praseodymium) system". Bulletin of Alloy Phase Diagrams. 7 (4): 347–348. doi:10.1007/BF02873010. ISSN 0197-0216.
  4. ↑ Gschneidner, K. A.; Calderwood, F. W. (June 1986). "The arsenic-rare earth systems". Bulletin of Alloy Phase Diagrams. 7 (3): 274–276. doi:10.1007/BF02869005. ISSN 0197-0216.
  5. ↑ Shirotani, Ichimin; Hayashi, Junichi; Yamanashi, Keigo; Hirano, Kouji; Adachi, Takafumi; Ishimatsu, Naoki; Shimomura, Osamu; Kikegawa, Takumi (June 2003). "X-ray study with synchrotron radiation of cerium and praseodymium monopnictides with the NaCl-type structure at high pressures". Physica B: Condensed Matter. 334 (1–2): 167–174. Bibcode:2003PhyB..334..167S. doi:10.1016/S0921-4526(03)00042-5.
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