Praseodymium arsenide is a binary inorganic compound of praseodymium and arsenic with the formula PrAs.
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Other names
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3D model (JSmol)
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| ECHA InfoCard | 100.031.763 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Molar mass | 215.83 g/mol |
| Density | 6.6 g/cm3 |
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Other anions
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PrN, PrP, PrSb, PrBi, Pr2O3 |
Other cations
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CeAs, NdAs |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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
- ^ Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия. 1966.
{{cite book}}: Unknown parameter|agency=ignored (help) - ^ a b Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 1. Moskva: Mašinostroenie. 1996. ISBN 978-5-217-02688-3.
- ^ Gschneidner, K. A.; Calderwood, F. W. (1986-08). "The As−Pr (Arsenic-Praseodymium) system". Bulletin of Alloy Phase Diagrams. 7 (4): 347–348. doi:10.1007/BF02873010. ISSN 0197-0216.
{{cite journal}}: Check date values in:|date=(help) - ^ Gschneidner, K. A.; Calderwood, F. W. (1986-06). "The arsenic-rare earth systems". Bulletin of Alloy Phase Diagrams. 7 (3): 274–276. doi:10.1007/BF02869005. ISSN 0197-0216.
{{cite journal}}: Check date values in:|date=(help) - ^ Shirotani, Ichimin; Hayashi, Junichi; Yamanashi, Keigo; Hirano, Kouji; Adachi, Takafumi; Ishimatsu, Naoki; Shimomura, Osamu; Kikegawa, Takumi (2003-06). "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. doi:10.1016/S0921-4526(03)00042-5.
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