| Identifiers | |
|---|---|
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.031.689 
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| EC Number |
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| CompTox Dashboard (EPA) | |
InChI
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SMILES
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| Properties | |
| Chemical formula | PrSe |
| Molar mass | 219.87 |
| Density | 6.9 g/cm |
| Melting point | 2,100 °C (3,810 °F; 2,370 K) |
| Related compounds | |
| Other anions | PrS PrTe |
| Other cations | CeSe NdSe |
| Related compounds | Pr2Se3 |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Praseodymium monoselenide is a compound with the chemical formula PrSe. It forms crystals.
Preparation
Praseodymium monoselenide can be prepared by directly reacting praseodymium and selenium at 2100 °C:
- Pr + Se → PrSe
The temperature at which selenium and praseodymium start to react when they come into contact is 620 K.
Properties
Praseodymium monoselenide forms cubic crystals, space group Fm3m, unit cell parameters a = 0.5741 nm, Z = 4, and a structure similar to that of sodium chloride.
The compound melts congruently at 2100 °C.
References
- Sergeeva, K. P. (2015-07-28). "The territorial structures in the settlement pattern and urbanization". Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. (2): 122. doi:10.15356/0373-2444-2015-2-122. ISSN 0373-2444.
- Andreev, O. V.; Kharitontsev, V. B.; Elyshev, A. V. (2013-08-01). "Compositions of phases in the interaction of rare-earth metals with selenium". Russian Journal of Inorganic Chemistry. 58 (8): 910–914. doi:10.1134/S0036023613080020. ISSN 1531-8613.
- Predel, B., "Se-Tm (Selenium-Thulium)", Pu-Re – Zn-Zr, Berlin/Heidelberg: Springer-Verlag, pp. 1–2, doi:10.1007/10551312_2721, ISBN 3-540-61742-6, retrieved 2024-01-22
- ^ Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 3,2. Moskva: Mašinostroenie. 2001. ISBN 978-5-217-02932-7.
| Praseodymium compounds | |||
|---|---|---|---|
| Pr(II) | |||
| Pr(III) |
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| Pr(III,IV) | |||
| Pr(IV) | |||
| Pr(V) | |||
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