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Plutonium(III) arsenide

chemical compound

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 29, 2026
Entity authorityQ19613282 ↗
Source-derived summary

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. 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, space group Fm3m, cell parameters a = 0.5855 nm, Z = 4, structure of the NaCl-type.

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

At a temperature of 129 K, PuAs transforms into a ferromagnetic state.

Editorial summary

This brief starts where responsible research should: with the source description of “Plutonium(III) arsenide” as chemical compound. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 109-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Plutonium, arsenide and chemical can be independently traced.
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Why this record matters

The subject matters to the science & nature register because the source frames it as chemical compound. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q19613282. None of the 0 selected statements returned an explicit reference.

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Source & attribution

This entry incorporates text from “Plutonium(III) arsenide” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.