Plutonium(IV) sulfate

Plutonium(IV) sulfate
Names
	IUPAC name Plutonium(IV) sulfate
Identifiers
3D model (JSmol)	anhydrous: Interactive image; tetrahdyrate: Interactive image;
	InChI anhydrous: InChI=1S/2H2O4S.Pu/c21-5(2,3)4;/h2(H2,1,2,3,4);/q;;+4/p-4 Key: QRGPRHDJXDGLIN-UHFFFAOYSA-J; tetrahdyrate: InChI=1S/2H2O4S.4H2O.Pu/c21-5(2,3)4;;;;;/h2(H2,1,2,3,4);4*1H2;/q;;;;;;+4/p-4 Key: UAJVPPUGRHQMOQ-UHFFFAOYSA-J;
	SMILES anhydrous: O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Pu+4]; tetrahdyrate: O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Pu+4].O.O.O.O;
Properties
Chemical formula	Pu(SO4)2
Molar mass	506.18 g/mol
Appearance	Red crystalline solid
Melting point	~800°C? (Decomposes)
Solubility in water	Somewhat soluble
Structure
Crystal structure	Orthorhombic
Space group	Fddd (α-Pu(SO4)2·4H2O); Pnma (β-Pu(SO4)2·4H2O)
Point group	mmm (α-Pu(SO4)2·4H2O)
Related compounds
Other anions	Plutonium(IV) oxide; Plutonium(IV) fluoride
Other cations	Uranium(IV) sulfate; Uranyl sulfate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Plutonium(IV) sulfate is a chemical compound consisting of plutonium and sulfate ions, with the chemical formula Pu(SO₄)₂·xH₂O. It has been observed as a tetrahydrate, where x=4,^[1]^[3] as well as an anhydrous form, where x=0.^[2] The tetrahydrate has been used as a primary analytical standard for plutonium.^[5]

^ ^a ^b ^c ^d Richard E. Wilson (18 May 2011). "Structural Periodicity in Plutonium(IV) Sulfates". Inorganic Chemistry. 50 (12): 5663–5670. doi:10.1021/ic200384h. PMID 21591736.
^ ^a ^b Waterbury, Glenn R., Douglass, Robert M., Metz, Charles F. (1 July 1961). ""Thermogravimetric Behavior of Plutonium Metal, Nitrate, Sulfate, and Oxalate"". Analytical Chemistry. 33 (8): 1018–1023. doi:10.1021/ac60176a047.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ ^a ^b NBL Program Office, "Safety Data Sheet: Plutonium Sulfate Tetrahydrate", https://www.energy.gov/sites/prod/files/2020/11/f80/SDS-Plutonium_Sulfate_2020.pdf
^ ^a ^b Jayadevan, N.C., Mudher, K.D.S., Chackraburtty, D.M. (25 Aug 2010). "The crystal structures of α- and β-forms of plutonium(IV) sulphate tetrahydrate". Zeitschrift für Kristallographie - Crystalline Materials. 161 (1–4): 7–14. doi:10.1524/zkri.1982.161.14.7.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ C. E. Pietri, A. W. Wenzel (1 Nov 1962). "The stability of plutonium sulphate tetrahydrate, an analytical standard: a ten-year evaluation". Talanta. 18 (8): 849–852. doi:10.1016/0039-9140(71)80138-8. PMID 18960954.