Plutonium arsenide

Plutonium arsenide  Names

Other names

Plutonium monoarsenide

Identifiers

CAS Number

* 12006-02-9

3D model (JSmol)

* Interactive image

PubChem CID

* 129627908

InChI

* InChI=1S/As.Pu

Key: IFUISAQYPYTWOE-UHFFFAOYSA-N

SMILES

* [As].[Pu]

Properties

Chemical formula

| AsPu
Molar mass | 318,92
Appearance  | Black or dark-gray crystals
Density | 10.39 g/cm3
Melting point |  2,420 °C (4,390 °F; 2,690 K)
Structure

Crystal structure

| Cubic

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Tracking categories (test):

* SizeSet

Plutonium arsenide is a binary inorganic compound of plutonium and arsenic with the formula PuAs.

## Synthesis

Fusion of stoichiometric amounts of pure substances in a vacuum or helium atmosphere.[1] The reaction is exothermic:

Pu + As → PuAs

Passing arsine through heated plutonium hydride:

2PuH2 \+ 2AsH3 → 2PuAs + 5H2

## Physical properties

Plutonium arsenide forms black or dark gray crystals of a cubic system,[2] space group Fm3m, cell parameters a = 0.5855 nm, Z = 4, structure of the NaCl-type.[3]

At high pressure (about 35 GPa), a phase transition occurs to a structure of the CsCl-type.[4]

At a temperature of 129 °K, PuAs transforms into a ferromagnetic state.[5]

## References

1. ↑ Morss, L. R.; Edelstein, Norman M.; Fuger, Jean (31 December 2007) (in en). The Chemistry of the Actinide and Transactinide Elements (3rd ed., Volumes 1-5). Springer Science & Business Media. p. 1022. ISBN 978-1-4020-3598-2. https://www.google.ru/books/edition/The_Chemistry_of_the_Actinide_and_Transa/KyHyM0ObXrAC?hl=en&gbpv=1&dq=plutonium+arsenide+PuAs&pg=PA1022&printsec=frontcover. Retrieved 11 January 2022.
2. ↑ (in en) NBS Monograph. National Bureau of Standards. 1959. p. 65. https://books.google.com/books?id=SUB7V7hqZTMC&dq=plutonium+arsenide+PuAs&pg=RA1-PA65. Retrieved 11 January 2022.
3. ↑ Gorum, A. E. (10 February 1957). "The crystal structures of PuAs, PuTe, PuP and PuOSe". Acta Crystallographica 10 (2): 144. doi:10.1107/S0365110X5700047X. http://scripts.iucr.org/cgi-bin/paper?S0365110X5700047X. Retrieved 11 January 2022.
4. ↑ Dabos-Seignon, S.; Benedict, U.; Spirlet, J. C.; Pages, M. (15 July 1989). "Compression studies on PuAs up to 45 GPa" (in en). Journal of the Less Common Metals 153 (1): 133–141. doi:10.1016/0022-5088(89)90539-0. ISSN 0022-5088. https://www.sciencedirect.com/science/article/abs/pii/0022508889905390. Retrieved 11 January 2022.
5. ↑ Blaise, A.; Fournier, J. M.; Salmon, P. (1 September 1973). "Magnetic properties of plutonium monoarsenide" (in en). Solid State Communications 13 (5): 555–557. doi:10.1016/S0038-1098(73)80012-2. ISSN 0038-1098. https://www.sciencedirect.com/science/article/abs/pii/S0038109873800122. Retrieved 11 January 2022.

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Arsenic compounds

* AsBr3
* AsCl3
* AsCl5
* AsF3
* AsF5
* AsH3
* AsHgI4
* AsI3
* As2O3
* As2O5
* As2S3
* As2S5
* As2Se3
* As4S4

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Plutonium compounds

Plutonium(II)|

* PuH2
* PuB2

Plutonium(III)|

* PuH3
* PuB
* PuCl3
* PuF3

Plutonium(IV)|

* PuC
* PuF4
* PuO2
* Pu(C8H8)2

Plutonium(VI)|

* PuF6

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