Chemistry:Plutonium silicide
From HandWiki
| Names | |
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| Other names
Plutonium monosilicide
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| PuSi | |
| Molar mass | 272.09 g/mol |
| Appearance | Grey crystals |
| Density | 10.15 |
| Melting point | 1,576[1] °C (2,869 °F; 1,849 K) |
| insoluble | |
| Hazards | |
| GHS Signal word | Warning |
| Related compounds | |
Related compounds
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Neptunium silicide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Plutonium silicide is a binary inorganic compound of plutonium and silicon with the chemical formula PuSi.[2][3][4] The compound forms gray crystals.
Synthesis
Reaction of plutonium dioxide and silicon carbide:
- [math]\displaystyle{ \mathsf{ PuO_2 + SiC \ \xrightarrow{T}\ PuSi + CO_2\uparrow } }[/math]
Reaction of plutonium trifluoride with silicon:
- [math]\displaystyle{ \mathsf{ 4 PuF_3 + 7 Si \ \xrightarrow{T}\ 4 PuSi + 3 SiF_4 } }[/math]
Physical properties
Plutonium silicide forms gray crystals of orthorhombic crystal system, space group Pnma, cell parameters: a = 0.7933 nm, b = 0.3847 nm, c = 0.5727 nm, Z = 4, TiSi type structure.
At a temperature of 72 K, plutonium silicide undergoes a ferromagnetic transition.[5]
References
- ↑ Macintyre, Jane E. (July 23, 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3783. ISBN 9780412301209. https://books.google.com/books?id=9eJvoNCSCRMC&dq=Plutonium+silicide+PuSi&pg=PA3783. Retrieved 16 August 2021.
- ↑ Krikorian, Oscar H.; Hagerty, David C. (1 May 1990). "Exchange reactions of plutonium with silicides and estimation of the enthalpy of formation of Pu5Si3" (in en). Journal of Nuclear Materials 171 (2–3): 237–244. doi:10.1016/0022-3115(90)90371-S. ISSN 0022-3115. Bibcode: 1990JNuM..171..237K. https://www.sciencedirect.com/science/article/abs/pii/002231159090371S. Retrieved 16 August 2021.
- ↑ "plutonium silicide - 一矽化鈽". terms.naer.edu.tw. https://terms.naer.edu.tw/detail/620781/.
- ↑ Fish, B. R.; Keilholtz, G. W.; Snyder, W. S.; Swisher, S. D. (November 1972). CALCULATION OF DOSES DUE TO ACCIDENTALLY RELEASED PLUTONIUM FROM AN LMFBR. Nuclear Safety Information Center. p. 39. https://info.ornl.gov/sites/publications/Files/Pub57052.pdf. Retrieved 16 August 2021.
- ↑ Boulet, P.; Wastin, F.; Colineau, E.; Griveau, J. C.; Rebizant, J. (July 2003). "The binary system Pu–Si: crystallochemistry and magnetic properties" (in en). Journal of Physics 15 (28): S2305–S2308. doi:10.1088/0953-8984/15/28/372. ISSN 0953-8984. Bibcode: 2003JPCM...15S2305B. https://iopscience.iop.org/article/10.1088/0953-8984/15/28/372. Retrieved 16 August 2021.
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