Plutonium selenide

Last updated
Plutonium selenide
Names
Other names
Plutonium monoselenide, Plutonium(II) selenide
Identifiers
3D model (JSmol)
  • InChI=1S/Pu.Se
    Key: IJHCCJHFYQUWOM-UHFFFAOYSA-N
  • [Pu].[Se]
Properties
PuSe
Molar mass 323.024
AppearanceBlack crystals
Melting point 2,075 °C (3,767 °F; 2,348 K)
insoluble
Hazards
GHS labelling:
Warning
Related compounds
Other anions
Plutonium sulfide
Plutonium telluride
Other cations
Magnesium selenide
Strontium selenide
Barium selenide
Iron(II) selenide
Iron(III) selenide
Lead(II) selenide
Praseodymium selenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Plutonium selenide is a binary inorganic compound of plutonium and selenium with the chemical formula PuSe. [1] [2] The compound forms black crystals and does not dissolve in water.

Contents

Synthesis

Reaction of diplutonium triselenide and plutonium trihydride:

Fusion of stoichiometric amounts of pure substances:

Properties

Plutonium selenide forms black crystals of a cubic system, space group Fm3m, cell parameters a = 0.57934 nm, Z = 4, structure of the NaCl type. [3] [4]

With increasing pressure, two phase transitions occur: at 20 GPa into the trigonal system and at 35 GPa into the cubic system, a structure of the CsCl type.

Its magnetic susceptibility follows the Curie-Weiss law. [5]

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<span class="mw-page-title-main">Berkelium</span> Chemical element with atomic number 97 (Bk)

Berkelium is a synthetic chemical element; it has symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series. It is named after the city of Berkeley, California, the location of the Lawrence Berkeley National Laboratory where it was discovered in December 1949. Berkelium was the fifth transuranium element discovered after neptunium, plutonium, curium and americium.

<span class="mw-page-title-main">Curium</span> Chemical element with atomic number 96 (Cm)

Curium is a synthetic chemical element; it has symbol Cm and atomic number 96. This transuranic actinide element was named after eminent scientists Marie and Pierre Curie, both known for their research on radioactivity. Curium was first intentionally made by the team of Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso in 1944, using the cyclotron at Berkeley. They bombarded the newly discovered element plutonium with alpha particles. This was then sent to the Metallurgical Laboratory at University of Chicago where a tiny sample of curium was eventually separated and identified. The discovery was kept secret until after the end of World War II. The news was released to the public in November 1947. Most curium is produced by bombarding uranium or plutonium with neutrons in nuclear reactors – one tonne of spent nuclear fuel contains ~20 grams of curium.

<span class="mw-page-title-main">Neptunium</span> Chemical element with atomic number 93 (Np)

Neptunium is a chemical element; it has symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. It is named after Neptune, the planet beyond Uranus in the Solar System, which uranium is named after. A neptunium atom has 93 protons and 93 electrons, of which seven are valence electrons. Neptunium metal is silvery and tarnishes when exposed to air. The element occurs in three allotropic forms and it normally exhibits five oxidation states, ranging from +3 to +7. Like all actinides, it is radioactive, poisonous, pyrophoric, and capable of accumulating in bones, which makes the handling of neptunium dangerous.

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Potassium chloride is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous crystal appearance. The solid dissolves readily in water, and its solutions have a salt-like taste. Potassium chloride can be obtained from ancient dried lake deposits. KCl is used as a fertilizer, in medicine, in scientific applications, domestic water softeners, and in food processing, where it may be known as E number additive E508.

<span class="mw-page-title-main">Potassium oxide</span> Chemical compound

Potassium oxide (K2O) is an ionic compound of potassium and oxygen. It is a base. This pale yellow solid is the simplest oxide of potassium. It is a highly reactive compound that is rarely encountered. Some industrial materials, such as fertilizers and cements, are assayed assuming the percent composition that would be equivalent to K2O.

<span class="mw-page-title-main">Scandium fluoride</span> Chemical compound

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<span class="mw-page-title-main">Thallium(I) iodide</span> Chemical compound

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<span class="mw-page-title-main">Plutonium(III) fluoride</span> Chemical compound

Plutonium(III) fluoride or plutonium trifluoride is the chemical compound composed of plutonium and fluorine with the formula PuF3. This salt forms violet crystals. Plutonium(III) fluoride has the LaF3 structure where the coordination around the plutonium atoms is complex and usually described as tri-capped trigonal prismatic.

<span class="mw-page-title-main">Plutonium borides</span>

Several plutonium borides can be formed by direct combination of plutonium and boron powders in an inert atmosphere at reduced pressure.

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Sodium selenide is an inorganic compound of sodium and selenium with the chemical formula Na2Se.

<span class="mw-page-title-main">Neodymium(III) bromide</span> Chemical compound

Neodymium(III) bromide is an inorganic salt of bromine and neodymium the formula NdBr3. The anhydrous compound is an off-white to pale green solid at room temperature, with an orthorhombic PuBr3-type crystal structure. The material is hygroscopic and forms a hexahydrate in water (NdBr3· 6H2O), similar to the related neodymium(III) chloride.

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Curium compounds are compounds containing the element curium (Cm). Curium usually forms compounds in the +3 oxidation state, although compounds with curium in the +4, +5 and +6 oxidation states are also known.

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

<span class="mw-page-title-main">Selenosulfide</span> Class of chemical compounds, both organic and inorganic, containing sulfur as well as selenium

In chemistry, a selenosulfide refers to distinct classes of inorganic and organic compounds containing sulfur and selenium. The organic derivatives contain Se-S bonds, whereas the inorganic derivatives are more variable.

Neptunium compounds are compounds containing the element neptunium (Np). Neptunium has five ionic oxidation states ranging from +3 to +7 when forming chemical compounds, which can be simultaneously observed in solutions. It is the heaviest actinide that can lose all its valence electrons in a stable compound. The most stable state in solution is +5, but the valence +4 is preferred in solid neptunium compounds. Neptunium metal is very reactive. Ions of neptunium are prone to hydrolysis and formation of coordination compounds.

<span class="mw-page-title-main">Strontium selenide</span> Chemical compound

Strontium selenide is an inorganic compound with the chemical formula SrSe.

<span class="mw-page-title-main">Plutonium nitride</span> Chemical compound

Plutonium nitride is a binary inorganic compound of plutonium and nitrogen with the chemical formula PuN.

References

  1. Eyring, LeRoy; O'Keeffe, Michael (1970). The Chemistry of Extended Defects in Non-metallic Solids: Proceedings of the Institute for Advanced Study on the Chemistry of Extended Defects in Non-Metallic Solids, Casa Blanca Inn, Scottsdale, Arizona, April 16-26, 1969. North-Holland Publishing Company. p. 140. ISBN   978-0-7204-0164-6 . Retrieved 6 August 2021.
  2. Burke, Robert (17 June 2013). Hazardous Materials Chemistry for Emergency Responders. CRC Press. p. 85. ISBN   978-1-4398-4986-6 . Retrieved 6 August 2021.
  3. Gensini, M.; Gering, E.; Heathman, S.; Benedict, U.; Spirlet, J. C. (1 April 1990). "High-pressure phases of plutonium monoselenide studied by X-ray diffraction". High Pressure Research. 2 (5–6): 347–359. Bibcode:1990HPR.....2..347G. doi:10.1080/08957959008203187. ISSN   0895-7959 . Retrieved 6 August 2021.
  4. "WebElements Periodic Table » Plutonium » plutonium selenide". webelements.com. Retrieved 6 August 2021.
  5. Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3783. ISBN   978-0-412-30120-9 . Retrieved 6 August 2021.